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15-03-2010, 05:23 PM
Post: #1
SUSPENSION SYSTEM full report

.pptx  presentation on suspenion system.pptx (Size: 565.72 KB / Downloads: 2346)
A PRESENTATION ON SUSPENSION SYSTEM

PRESENTED BY:-
NIKHIL VERMA
ROLL NO. 13735
MECHANICAL 3RD YEAR


INTRODUCTION

Suspension system is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels . It is basically cushion for passengers protects the luggage or any cargo and also itself from damage and wear.
Sir William Brush is the father of suspension system in automobiles.

ROLE OF SUSPENSION SYSTEM

The main role of suspension system are as follows:
It supports the weight of vehicle .
Provides smoother ride for the driver and passengers i.e. acts as cushion.
Protects your vehicle from damage and wear .
It also plays a critical role in maintaining self driving conditions.
It also keeps the wheels pressed firmly to the ground for traction .
It isolates the body from road shocks and vibrations which would otherwise be transferred to the passengers and load.

PRINCIPLE OF SUSPENSION

Principle :-When a tire hits an obstruction, there is a reaction force. The size of this reaction force depends on the unsprung mass at each wheel assembly.

In general, the larger the ratio of sprung weight to unsprung weight, the less the body and vehicle occupants are affected by bumps, dips, and other surface imperfections such as small bridges. A large sprung weight to unsprung weight ratio can also impact vehicle control.

DEFINITIONS OF
SPRUNG &UNSPRUNG MASS

Sprung mass :-Sprung mass (weight) refers to vehicle parts supported on the suspension system, such as the body, frame, engine, the internal
components, passengers, and cargo.
Unsprung mass :- Unsprung mass
refers to the components that follow
the road contours, such as wheels, tires,brake assemblies, and any part of the steering and suspension not supported by the springs.

WORKING OF SUSPENSION SYSTEM

No road is perfectly flat i.e. without irregularities. Even a freshly paved highways have subtle imperfections that can be interact with vehicleâ„¢s wheels. These are the imperfections that apply forces on wheels.
According to Newton Ëœs law of motion all forces have both magnitude and direction.
A bump in the road causes the wheel to move up and down perpendicular to the road surface. The magnitude of course ,depends on whether the wheel is striking a giant bump or a tiny speck. Thus, either the wheel experiences a vertical acceleration as it passes over an imperfection.

PARTS OF TYPICAL SUSPENSION

The suspension of a car is actually part of the chassis, which comprises all of the important systems located beneath the car's body. These system include :
Frame
Suspension system
Steering system
Tires or Wheels



COMPONENTS OF ANY SUSPENSION

There are three fundamental components of any suspension system .
Springs
Dampers
Anti sway bars
Anti-sway Bars:- Anti-sway bars (also known as anti-roll bars) are used along with shock absorbers or struts to give a moving automobile additional stability. An anti-sway bar is a metal rod that spans the entire axle and effectively joins each side of the suspension together.

ADVANTAGES

Comfort to passengers
Good handling
Shields the vehicle from damage
Increases life of vehicle
Keeps the tires pressed firmly to ground

CONCLUSION

From the whole discussion in suspension system, I observe that suspension system is like a white blood cell .As white blood cell provides energy to our body to fight against diseases or viruses which try to destroy or try to decrease our life ,in the similar way suspension system provides the energy to a vehicle to protect itself from damaging, increasing life of the vehicle ,increases the handing,increases comfort of passengers and many more.
So, according to me if you remove the suspension system, then you feel like in bull- cart in Audi , Mercedes types luxurious cars. The only difference is speed.
So, the scope of Suspension System is Too Bright.

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05-04-2010, 11:09 AM
Post: #2
RE: SUSPENSION SYSTEM full report
Suspension system in automobiles

Presented BY ,

SAGAR BABU-06J61A0318

What is suspension system

Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to

its wheels
Serve a dual purpose “ contributing to the car's handling and braking.
Protects the vehicle itself and any cargo or luggage from damage and wear

Different suspension systems

Conventional suspension system
Independent suspension system
Air suspension system
Hydro elastic suspension system

Conventional suspension system

Two wheels are mounted on either side of the rigid axle
When one wheel encounters the bump, both the wheel do not execute parallel up and down motion
So it gives rise to gyroscopic effect and wheel wobble
Rear driving wheels mounted on live axle suspended by laminated leaf springs and shock absorbers



Independent suspension system

Both the front and the rear wheel are utilized
Design incorporated in the front wheels
One wheel goes down ,the other wheel does not have much effect
Basic classification of the design
MacPherson Strut
Double Wishbone
Multi link

the most widely used front suspension system in cars
comprises of a strut-type spring and shock absorber combo, which pivots on a ball joint on the single, lower

arm.
The steering gear is either connected directly to the lower shock absorber housing, or to an arm from the front

or back of the spindle (in this case
When you steer, it physically twists the strut and shock absorber housing (and consequently the spring) to turn

the wheel
DOUBLE WISHBONE SUSPENSION


Type of double-A or double wishbone suspension
Wheel spindles are supported by an upper and lower 'A' shaped arm.
The lower arm carries most of the load.
If you look head-on at this type of system, parallelogram system that allows the spindles to

travel vertically up and down.
This side-to-side motion is known as scrub


Type of double-A arm suspension although the lower arm in these systems can sometimes be replaced with a single

solid arm (as in my picture).
The spring/shock combo is moved from between the arms to above the upper arm.
This transfers the load-bearing capability of the suspension almost entirely to the upper arm and the spring

mounts.
The lower arm in this instance becomes a control arm.
Multi-link suspension
It's currently being used in the Audi A8 and A4 amongst other cars.
The basic principle of it is the same, but instead of solid upper and lower wishbones, each 'arm' of the

wishbone is a separate item.
These are joined at the top and bottom of the spindle thus forming the wishbone shape.
The super-weird thing about this is that as the spindle turns for steering, it alters the geometry of the

suspension by torquing all four suspension arms.
Spring is separate from the schock absorber.
Advantages ( independent front )
Bigger deflection of front wheels, no reaction on steering
Greater distance for resisting rolling action
Front axle (small-stub), improves road holding tendency of tyres.
Minimum vibrations

DISADVANTAGES

Better shock absorber required.
Expensive
Tyre wear increases due to transmission of torque.

Advantages ( independent rear suspension)

Lesser unsprung weight “ improves ride , reduces tyre wear.
Increased passenger space
Rear wheels remain stable ..

DISADVANTAGES

Increased cost
Complicated design
Steering action is not proper
Traverse suspension system

Normally find on the rear suspension
Combines independent double wishbone suspension with a leaf spring.
It involves one leaf spring mounted across the vehicle, connected at each end to the lower wishbone.
The centre of the spring is connected to the front subframe in the middle of the car.
There are still two shock absorbers, mounted one to each side on the lower wishbones.
Air suspension
Comprises of compressor , suppling air to air tank
Pressure maintained “ 5.6 to 7 kg/sq.m
Air bags “ on each wheel
As load applied , air bags compressed actuating the levelling valve .
Air from the tank fills the compressrd air bag & hence raise the level of the frame.
Air from air bag gets released as load on chassis decreases .
Air suspension layout
Advantages of air suspension
These maintain a constant frequency of vibration whether the vehicle is laden or unladen.
Constant frame height is maintained.
It helps to reduce the load while the vehicle in motion i.e. the dynamic loading as the spring rate variation

between laden and unladen weight is much less.
It gives smooth and comfort ride of the vehicle.
The stiffness of the system increases with the increase of the deflection.
Common Air Suspension Problems
Air bag or air strut failure
- due to old age, or moisture within the air system that damages them from the inside.
Compressor failure
- Primarily due to leaking air springs or air struts
- Compressor burnout may also be caused by moisture from within the air system coming into contact with its

electronic parts.
Dryer failure
- which functions to remove moisture from the air system eventually becomes saturated and unable to perform

that function
Hydrolastic Suspension
a system where the front and rear suspension systems were connected together in order to better level the car

when driving.
The front and rear suspension units have Hydrolastic displacers, one per side.
These are interconnected by a small bore pipe. Each displacer incorporates a rubber spring
Damping of the system is achieved by rubber valves.

when the front wheel encounter bumps ,the piston moves upwards pressurising the fluid to enter into the rear

unit.
Hydroelastic was eventually refined into Hydragas suspension.......
Hydrogas suspension
Known as hydro-pneumatic suspension.
The difference is in the displacer unit itself.
In the older systems, fluid was used in the displacer units with a rubber spring cushion built-in.
With Hydragas, the rubber spring is removed completely.
The fluid still exists but above the fluid there is now a separating membrane or diaphragm, and above that is a

cylinder or sphere which is charged with nitrogen gas.
The nitrogen section is what has become the spring and damping unit whilst the fluid is still free to run from

the front to the rear units and back.

Difference ¦
HELPER SPRING

DIRECTLY MOUNTED ON MAIN SPRINGS
TAKE CARE OF LARGE VARIATION IN SPRING LOAD
DURING LIGHT LOADS ,ONLY MAIN SPIRNG IS ACTIVE , AS LOAD INCREASE TO A PARTICULAR FIXED VALUE , BOTH THE

SPRINGS ARE ACTIVE


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.ppt  SUSPENSION SYSTEM.ppt (Size: 2.01 MB / Downloads: 1035)

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04-05-2010, 01:08 PM
Post: #3
Wink RE: SUSPENSION SYSTEM full report
thanks and it is an excellent one
19-05-2010, 07:54 PM
Post: #4
RE: SUSPENSION SYSTEM full report

.ppt  Suspension system in automobiles .ppt (Size: 2.01 MB / Downloads: 597)

Suspension system in automobiles

Presented BY ,
RAJESWARAN - 05ME44
RAVI KUMAR - 05ME49
TOWFIQ AHAMED - 05ME64



What is suspension system

Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels
Serve a dual purpose

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27-09-2010, 12:17 PM
Post: #5
Thumbs Down INDEPENDENT SUSPENSION SYSTEM

.doc  Independent Suspension System.doc (Size: 720 KB / Downloads: 471)
ABSTRACT

When people think of automobile performance, they normally think of horsepower, torque and zero-to-60 acceleration. But all of the power generated by a piston engine is useless if the driver can't control the car. That's why automobile engineers turned their attention to the suspension system almost as soon as they had mastered the four-stroke internal combustion engine.
Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. Suspension systems serve a dual purpose – contributing to the car's roadholding/handling and braking for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations,etc. These goals are generally at odds, so the tuning of suspensions involves finding the right compromise.
Most modern vehicles have independent front suspension (IFS). Many vehicles also have an independent rear suspension (IRS). IRS, as the name implies, has the rear wheels independently sprung. A fully independent suspension has an independent suspension on all wheels. Some early independent systems used swing axles, but modern systems use Chapman or MacPherson struts, trailing arms, multilink, or wishbones.

INTRODUCTION
Independent suspension is a broad term for any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump in the road) independently of each other. This is contrasted with a beam axle, live axle or de Dion axle system in which the wheels are linked - movement on one side affects the wheel on the other side. It is common for the left and right sides of the suspension to be connected with anti-roll bars. The anti-roll bar ties the left and right suspension spring rates together but does not tie their motion together.
Most modern vehicles have independent front suspension (IFS). Many vehicles also have an independent rear suspension (IRS). IRS, as the name implies, has the rear wheels independently sprung. A fully independent suspension has an independent suspension on all wheels. Some early independent systems used swing axles, but modern systems use Chapman or MacPherson struts, trailing arms, multilink, or wishbones.
Independent suspension typically offers better ride quality and handling characteristics, due to lower unsprung weight and the ability of each wheel to address the road undisturbed by activities of the other wheel on the vehicle. In the case of straight line drag racing though, it can be more of a burden because of the design, IRS may cause the vehicle to experience wheel hop on a hard launch. Independent suspension requires additional engineering effort and expense in development versus a beam or live axle arrangement. A very complex IRS solution can also result in higher manufacturing costs.

27-09-2010, 12:30 PM
Post: #6
RE: SUSPENSION SYSTEM full report
very nice information ..

keep it up

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18-10-2010, 03:40 PM
Post: #7
Thumbs Down RE: SUSPENSION SYSTEM full report

.ppt  Suspension Control for Full Car Model.ppt (Size: 2.45 MB / Downloads: 260)
This article is presented by:Uzair Khan
Suspension Control for Full Car Model


Suspension systems
Maximization of the friction between road surface and tyres.
To provide the better road handling and ride conditions.
Problem is constant suspension parameters.

Possible suspension control models

Quarter car model
(Only informs about the Heave (vertical motion) of vehicle)

Half car model
(Information about Heave (vertical motion) and Pitch/Roll motion of the body)

Full car model
(Information about Heave (vertical motion) , Pitch and Roll motion of the body)

State space representation
20-10-2010, 02:22 PM
Post: #8
RE: SUSPENSION SYSTEM full report

Presented by:
Sourabh Y. Rajput


.ppt  Suspension System.ppt (Size: 261.5 KB / Downloads: 176)


Suspension system
The automobile chasis is mounted on the axle not directly but through some form of spring and other equipments which make a comfortable ride for passengers as well as goods and vehicle working parts

Comfort and control
Comfort is provided by isolating the vehicle's passengers from road disturbances like bumps or potholes .
Control is achieved by keeping the car body from rolling and pitching excessively, and maintaining good contact between the tire and the road.
22-03-2011, 08:09 PM
Post: #9
RE: SUSPENSION SYSTEM full report
its nice and useful to design
05-04-2011, 10:19 AM
Post: #10
RE: SUSPENSION SYSTEM full report

.doc  suspension31.doc (Size: 460 KB / Downloads: 190)
1. Introduction:
Suspension is the term given to the system of springs, shock absorbers and linkages that connects a vehicle to its wheels. Suspension systems serve a dual purpose — contributing to the car's roadholding/handling and braking for good active safety and driving pleasure, and keeping vehicle occupants comfortable and reasonably well isolated from road noise, bumps, and vibrations,etc. These goals are generally at odds, so the tuning of suspensions involves finding the right compromise. It is important for the suspension to keep the road wheel in contact with the road surface as much as possible, because all the forces acting on the vehicle do so through the contact patches of the tires. The suspension also protects the vehicle itself and any cargo or luggage from damage and wear. The design of front and rear suspension of a car may be different.Automobile suspensions have many variable characteristics, which are generally different in the front and rear and all of which affect handling. Some of these are:
spring rate, damping, straight ahead camber angle, camber change with wheel travel, roll center height and the flexibility and vibration modes of the suspension elements. Suspension also affects unsprung weight.
A motorcycle’s suspension is similar toThe suspension in an automobile in its purpose:“Suspension system serve a dual purpose-contributing to the vehicle’s handling and breaking for good active safety and driving pleasure, & keeping vehicle passangers comfartable & reasonably well isolated from road noise, bumps and vibration.”But a motorcycle suspension is usually simpler,since it does not have to conted with lateral forces such as body roll. The typical motorcycle has a pair of fork tubes for the front suspension,and a single swingwarm with one or two shock absorbers for the rear suspension.
2. Suspension:
A Motorcycle Suspension System consists of a spring coupled to a viscous damping element, a piston, in a cylinder filled with oil. The piston smooths out vibrations induced by the vehicle while moving as it moves through the oil. The flow of oil through the piston is regulated by an adjustable elastic deformable flap called a shim.
Types of Motorcycle Suspension
Front Suspension:
The predominant type of front suspension is the suspension fork. The bottom part of the fork is fitted over the tubes that connect the fork to the frame. When the vehicle hits a bump, the spring
gets compressed and the piston orces fluid through the orifice.
Rear Suspension: Most of the time the rear suspension are used as a shock absorber.Both these two types of suspensions contain two essential elements: a spring and a damper which are collectively referred to as a shock
absorber.

Functions of Motorcycle
Suspension:
The main functions of the motorcycle
suspensions are:
• To insulate both the rider and the bulk of the machine from road shocks. It makes a much safer and comfortable ride and is important for proper mechanical reliability and longevity.
• To keep the wheels in the closest possible contact with the ground and gives control of the vehicle to the rider.
• The front suspension helps to guides the front wheel, to steer, to spring, to dampen, and to provide support under braking.
Materials used for making Suspensions:
The materials most commonly used for making suspensions are:
• Steel
• Aluminum
Maintenance of Suspensions:
• The suspensions should be checked for loose nuts and bolts and leaks.
• The swing arm bearings should be lubricated monthly.
3. Modern Suspension System:
HydraulicFluids:

Hydraulic fluids are liquids used as the motive medium in hydraulic machinery and equipment. These fluids are used in a number of machines including automobiles. Car transmissions, power brakes and power steering systems all require hydraulic fluids. Hydraulic fluids are used in a number of vehicles starting from tractors to garbage lifters. There are many fluids used for hydraulic oil like mineral oil, water, synthetic compounds, and water based mixtures, castor oil, ethers, esters.
4. Suspension(Motorcycle) System:
After the engine of a vehicle it is the suspension system that holds prime importance because it is the harbinger of a comfortable ride. The suspension system minimizes the impact of a particular road condition providing a safe drive to the occupants of the vehicle. This might sound pretty simple but when you come to think of it seriously it is not as simple as it might seem to be. When acceleration comes into force and force translates into raw energy this energy travels through the frame of the vehicle .without coils and springs to absorb this the vertical energy would cause the vehicle to jump up off the road reducing tire friction and control which would result in a heavy bounce back downwards by the car with even greater force which could be very dangerous. Coil spring and leaf springs to absorb all forces and to keep the tires firmly planted to the ground so that the tire always remains in contact with the ground
The term suspension is given to the springs, shock absorbers and linkages that connect a vehicle to its wheels. The suspension system mainly serves the purpose of providing safety to the car by minimizing jerks and provides comfort to the occupants of the vehicle.
Principle of SuspensionSystem:
To restrict road vibrations from being transmitted to the various components of the vehicle To protect the passengers from road shocks To maintain the stability of the vehicle in pitching and rolling.
Components of the Suspension System:
Control Arm: A movable lever that fastens the steering knuckle to the frame of the vehicle.
Control Arm Busing: This is a sleeve which allows the control arm to move up and down on the frame.
Strut Rod: Prevents the control arm from swinging forward and backwards.
Ball Joints: A joint that allows the control arm and steering knuckle to move up and down.
Shock absorbers or Struts: prevents the suspension from bounce after spring compression and extension
Stabilizer Bar: Limits body roll of the vehicle during cornering
Spring: Supports the weight of the vehicle.
Common problems of the suspension system:
Shocks and Struts: Shocks and Struts are located behind the wheels of a vehicle. Shocks and Struts are subject to wear and tear just like other vehicle parts. The signs of a shock wear out are if the car bounces excessively, leans hard in corners and jerks at brakes then the shocks and struts are definitely calling for a change.
Ball joints: The wearing out of ball joints can get dangerous because if they separate they cause you to lose control over the vehicle which could also be a life risk.
Preventive Measures(Motorcycle):
The shocks and struts should be check frequently for leakages
Ball joints should be checked immediately incase the motion of the car is not right.Make sure to lubricate the ball joints of your car frequently.
5. Setting up a suspension:
Many older motorcycles do not offer much in the way of suspension adjustments. Simple pre-load adjustment for the rear shock(s) and nothing more is not uncommon.However, on modern motorcycles with higher specifications both pre-load and compression adjustments are standard, on both front and rear suspension. Some models as of 2006 offer both high and low speed compression adjustment.Even those motorcycles that do offer adjustments sometimes cannot be adjusted far enough for some riders.Properly tuning motorcycle suspension often requires assistance from an expert due to the range of adjustment possible. It is very difficult for the average rider to determine what adjustments need to be made, as a poorly set up rear end may cause front-end problems, and vic e versa.
6. Motorcycle:
A motorcycle (also called a motorbike, bike, or cycle) is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most affordable forms of motorised transport in many parts of the world and, for most of the world's population, they are also the most common type of motor vehicle.There are around 200 million motorcycles in use worldwide,or about 33 motorcycles per 1000 people. This compares to around 590 million cars, or about 91 per 1000 people. Most of the motorcycles, 58%, are in the developing countries of Asia—Southern and Eastern Asia, and the Asia Pacific countries, excluding Japan—while 33% of the cars (195 million) are concentrated in the United States and Japan. As of 2002, India with an estimated 37 million motorcycles/mopeds was home to the largest number of motorised two wheelers in the world. China came a close second with 34 million motorcycles/mopeds.
7. History:
The first internal combustion, petroleum fueled motorcycle was the Petroleum Reitwagen. It was designed and built by the German inventors Gottlieb Daimler and Wilhelm Maybach in Bad Cannstatt, Germany in 1885. This vehicle was unlike either the safety bicycles or the boneshaker bicycles of the era in that it had zero degrees of steering axis angle and no fork offset, and thus did not use the principles of bicycle and motorcycle dynamics developed nearly 70 years earlier. Instead, it relied on two outrigger wheels to remain upright while turning. The inventors called their invention the Reitwagen ("riding car"). It was designed as an expedient testbed for their new engine, rather than a true prototype vehicle. Many authorities who exclude steam powered, electric or diesel two-wheelers from the definition of a motorcycle, credit the Daimler Reitwagen as the world's first motorcycle. If a two-wheeled vehicle with steam propulsion is considered a motorcycle, then the first was the French Michaux-Perreaux steam bicycle of 1868. This was followed by the American Roper steam velocipede of 1869, built by Sylvester Howard Roper of Roxbury, Massachusetts. Roper demonstrated his machine at fairs and circuses in the eastern U.S. in 1867, and built a total of 10 examples. In 1894, Hildebrand & Wolfmüller became the first series production motorcycle, and the first to be called a motorcycle (German: Motorrad). In the early period of motorcycle history, many producers of bicycles adapted their designs to accommodate the new internal combustion engine. As the engines became more powerful and designs outgrew the bicycle origins, the number of motorcycle producers increased.Until World War I, the largest motorcycle manufacturer in the world was Indian, producing over 20,000 bikes per year. By 1920, this honour went to Harley-Davidson, with their motorcycles being sold by dealers in 67 countries. By the late 1920s or early 1930s, DKW took over as the largest manufacturer. After World War II, the BSA Group became the largest producer of motorcycles in the world, producing up to 75,000 bikes per year in the 1950s.The German company NSU held the position of largest manufacturer from 1955 until the 1970s.
NSU Sportmax streamlined motorcycle, 250 cc class winner of the 1955 Grand Prix season.In the 1950s, streamlining began to play an increasing part in the development of racing motorcycles and the "dustbin fairing" held out the possibility of radical changes to motorcycle design. NSU and Moto Guzzi were in the vanguard of this development both producing very radical designs well ahead of their time. NSU produced the most advanced design, but after the deaths of four NSU riders in the 1954–1956 seasons, they abandoned further development and quit Grand Prix motorcycle racing. Moto Guzzi produced competitive race machines, and by 1957 nearly all the Grand Prix races were being won by streamlined machines.
06-04-2011, 04:47 PM
Post: #11
RE: SUSPENSION SYSTEM full report

.ppt  ravi marsonia 2023.ppt (Size: 415.5 KB / Downloads: 76)
PURPOSE OF THE SUSPENSION SYSTEM
Support the weight of the vehicle.
Cushion bumps and holes in the road.
Maintain traction between the tires and the road.
Hold the wheels in alignment.
Travel over rough surface with a mini-mum of up-and-down body movement.
Suspension system assembly
Types of springs
Coil springs
Leaf springs
Torsion bar
Air springs
Controlling spring action
The ideal spring for automotive suspensi
on absorber road shock rapidly and then
returns to its normal position slowly. This is difficult to attain, however. A very flexi-
ble or soft spring allows too much move-
ment. A stiff or hard spring gives to rough a ride. A medium-soft spring and a shock absorber prevent spring override.
Purpose of shock absorbers…
A shock absorber is a tubular hydraulic device placed near each wheel to control or dampen spring oscillations. One end of the shock absorber attaches to the vehicle body or frame. The other end attaches to a moving suspension part such as the axle housing or a control arm. Movement of the spring then causes
the shock absorber to lengthen and short.
Types of shock absorber
Gas-filled shock absorber.
Lever type of shock absorber.
Spring-assisted shock absorber.
Adjustable shock absorber.
Air shock absorber.
Suspension service. Complaint:- spring breakage
Cause
Overloading
Leaf spring with loose center
Defective shock absorber
Tight spring shackle
Remedies
Avoid overloading
Tighten
replace
Loosen, replace
Complain:- noise and vibration
Cause
Loose, unlubricated
Suspension part
Tight or dry shock absorber mounting bushing.
Remedies
Lubricate, tighten
Repair
Lubricate, install properly
23-04-2011, 02:10 PM
Post: #12
RE: SUSPENSION SYSTEM full report

.ppt  ravi marsonia 2023.ppt (Size: 415.5 KB / Downloads: 31)
PURPOSE OF THE SUSPENSION SYSTEM
Support the weight of the vehicle.
Cushion bumps and holes in the road.
Maintain traction between the tires and the road.
Hold the wheels in alignment.
Travel over rough surface with a mini-mum of up-and-down body movement.
Suspension system assembly
Types of springs
Coil springs
Leaf springs
Torsion bar
Air springs
Controlling spring action
The ideal spring for automotive suspensi
on absorber road shock rapidly and then
returns to its normal position slowly. This is difficult to attain, however. A very flexi-
ble or soft spring allows too much move-
ment. A stiff or hard spring gives to rough a ride. A medium-soft spring and a shock absorber prevent spring override.
Purpose of shock absorbers
A shock absorber is a tubular hydraulic device placed near each wheel to control or dampen spring oscillations. One end of the shock absorber attaches to the vehicle body or frame. The other end attaches to a moving suspension part such as the axle housing or a control arm. Movement of the spring then causes
the shock absorber to lengthen and short.
Types of shock absorber
Gas-filled shock absorber.
Lever type of shock absorber.
Spring-assisted shock absorber.
Adjustable shock absorber.
Air shock absorber.
Suspension service. Complaint:- spring breakage
Cause
Overloading
Leaf spring with loose center
Defective shock absorber
Tight spring shackle
Remedies
Avoid overloading
Tighten
replace
Loosen, replace
Complain:- noise and vibration
Cause
Loose, unlubricated
Suspension part
Tight or dry shock absorber mounting bushing.
Remedies
Lubricate, tighten
Repair
Lubricate, install properly
04-04-2012, 04:34 PM
Post: #13
RE: SUSPENSION SYSTEM full report
Suspension System



.ppt  Suspension System.ppt (Size: 1.51 MB / Downloads: 78)

introduction

Suspension is the term given to the system of spring , shock absorbers
and linkage that connects a vehicle
to its wheel
The vehicle suspension system is responsible for driving comfort and safety as the suspension caries the vehicle body and transmit all force between the body and the road

Important Properties.

Spring rate:- It’s a ratio used to measure how resistance of spring is to being compressed or expanded during spring deflection.
Wheel rate:- It’s a effective spring rate when
measured at the wheel.
Roll couple percentage:-It’s the effective wheel rate.
Weight transfer.
Jacking force:- They are the sum of the vertical force
components experienced by the suspension link.

Suspension Types

Car manufacturing have set out to baffle us with the sheer of different types of suspension available for both front and rear axial.
The main grouping are dependent and applies to traditional or analogue suspension system.

Air suspension system.

These system are used to over come drawback which happens in spring system.
It helps to reduce load while the vehicle is in motion
It gives smooth
& comfort ride.

Nitrox shock observer

It’s also called as gas
filled shock observer.
It consist of a small box
which has Nitrogen
gas in it compared to other
By using secondary cylinder
It is used to reduce bubbles
which may form in oil
21-05-2012, 10:50 AM
Post: #14
RE: SUSPENSION SYSTEM full report
to get information about the topic "air suspension system" full report ppt and related topic refer the link bellow

http://seminarprojects.com/Thread-air-suspension-system

http://seminarprojects.com/showthread.ph...0#pid76480

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27-07-2012, 09:42 AM
Post: #15
RE: SUSPENSION SYSTEM full report
to get information about the topic "advantages of suspension system" full report ppt and related topic refer the link bellow

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28-08-2012, 04:04 PM
Post: #16
RE: SUSPENSION SYSTEM full report
hi....i m student of final yr mech .i chose this topic for seminar,so plz send me full report.
11-10-2012, 11:43 AM
Post: #17
RE: SUSPENSION SYSTEM full report
to get information about the topic "air suspension system" full report ppt and related topic refer the link bellow

http://seminarprojects.com/Thread-air-suspension-system

http://seminarprojects.com/showthread.ph...0#pid76480

http://seminarprojects.com/Thread-air-su...tem?page=3

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http://seminarprojects.com/Thread-suspen...ull-report
27-10-2012, 02:07 PM
Post: #18
RE: SUSPENSION SYSTEM full report
i need ppt slides on train bogie suspension system......
16-04-2013, 05:59 PM
Post: #19
RE: SUSPENSION SYSTEM full report
i want suspension
system in automobile documentation
17-04-2013, 09:31 AM
Post: #20
RE: SUSPENSION SYSTEM full report
To get full information or details of SUSPENSION SYSTEM please have a look on the pages

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20-08-2013, 07:43 PM
Post: #21
RE: SUSPENSION SYSTEM full report
pls send me suspension system full report
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