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presentation on suspenion system

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Information about presentation on suspenion system
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Published on September 18, 2011

Author: ramdas007

Source: authorstream.com

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A PRESENTATION ON SUSPENSION SYSTEM : A PRESENTATION ON SUSPENSION SYSTEM (CUSHION FOR PASSENGERS) PRESENTED BY:- NIKHIL VERMA ROLL NO. 13735 MECHANICAL 3 RD YEAR INTRODUCTION: 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: 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 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: 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 :- U nsprung 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: 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 vehicle’s wheels. These are the imperfections that apply forces on wheels. According to Newton ‘s 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. Slide 7: The below figure shows Horizontal/Vertical Acceleration: PARTS OF TYPICAL SUSPENSION: 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 Slide 9: The basic components of car suspension system shown by figure : COMPONENTS OF ANY SUSPENSION: COMPONENTS OF ANY SUSPENSION There are three fundamental components of any suspension system . Springs Dampers Anti sway bars SPRINGS: SPRINGS Coil spring Leaf springs Air springs DAMPERS: DAMPERS Three types:- Shock Absorbers:- Slide 13: Struts:- Slide 14: 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. TYPES OF SUSPENSION: TYPES OF SUSPENSION FRONT REAR INDEPENDENT NON INDEPENDENT INDEPENDENT NON INDEPENDENT Slide 16: FIGURES SHOW DIFFERENCE BETWEEN INDEPENDENT AND NON INDEPENDENT SUSPENSIONS ADVANTAGES: ADVANTAGES Comfort to passengers Good handling Shields the vehicle from damage Increases life of vehicle Keeps the tires pressed firmly to ground SPECIALISED SUSPENSIONS FORMULA ONE: SPECIALISED SUSPENSIONS FORMULA ONE MULTI –LINK SUSPENSION MORDERN TECHNOLOGY: MORDERN TECHNOLOGY Hydraulic fluid and air suspension Electronic and active suspensions CONCLUSION: 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. THANKS: THANKS

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