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POWER GENERATION USING SUSPENSION SYSTEM

The conceptual idea behind the mechanism of this project is the same as one of those used in the former ideas of producing electricity when vehicles move over speed breakers. But this project makes use of the suspension systems present inside a vehicle in which these devices would be fixed with an electromagnetic field by which electricity is produced due to vibrations within the vehicle and is stored for later use within the same system.

ABSTRACTABSTRACT

During the everyday usage of an automobile, only 10–16% of

the fuel energy is used to drive the car—to overcome theresistance from road friction and air drag. A conventional automotive shock absorber dampenssuspension movement to produce a controlled action thatkeeps the tire firmly on the road.

This is done by converting the kinetic energy into heat

energy, which is then absorbed by the shock’s oil.

This is the important loss is the dissipation of vibrationenergy by shock absorbers in the vehicle suspension underthe excitation of road irregularity and vehicle acceleration ordeceleration. In this project we will develop the power generating

suspension system which can efficiently recover the vibration energy in a compact space.

BLOCK DIAGRAM OF THE SYSTEM

We are working on power generating suspension system which works on the principal of conversion of linear motion in to rotary motion (rack and pinion movement) system. In this system the suspension spring provides a base upon which a cylindrical rack is mounted which have its motion in linear direction due to the vibration of the spring which rotates the pinion gear associated with the rack. Now the pinion gear has been in direct contact with a DC generator which produces varying voltage and current throughout the process. The DC produced will be passed through a rectifier circuit in order to avoid the reverse flow of current. The output current is then being used for any associative functioning of the automobile such as lighting, air conditioning, music system etc.

DESIGN

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

What is suspension system?

PURPOSE OF SUSPENSION SYSTEM

•Supports the weight.

•Provides a smooth ride.

•Allows rapid cornering without extreme body roll.

•Keeps tires in firm contact with the road.

•Isolate passenger and cargo from vibration and shock

•Allows front wheels to turn side-to-side for steering.

•Works with the steering system to keep the wheels in correct alignment.

Basic Parts:

Control Arm:- movable lever that fastensthe steering knuckle to the vehicle’sbody or frame.

Steering Knuckle:– provides a spindle or bearing support for the wheel hub, bearingsand wheel assembly.

Ball Joints:– swivel joints that allow control arm and steering knuckle to move up and down and side to side.

Springs:– supports the weight of the vehicle; permits the control arm and Wheel to move up and down.

Basic Parts:

Shock absorbers or dampeners:- keeps the suspension from continuing to bounce after spring compression and extension.

Control arm bushing :– sleeves that allows the control arm to swing up and down on the frame.

Basic Parts:

COIL SPRING AND LEAF SPRING

IMPORTANT COMPONENTS

• RACK & PINION ARRANGEMENT

A rack and pinion is a type of linear actuator that comprises a pair of gears which convert rotational motion into linear motion. A circular gear called "the pinion" engages teeth on a linear "gear" bar called "the rack"; rotational motion applied to the pinion causes the rack to move, thereby translating the rotational motion of the pinion into the linear motion of the rack.

IMPORTANT COMPONENTS

• CIRCUIT

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), current that flows in only one direction, a process known as rectification.

IMPORTANT COMPONENTS

• GENERATOR

In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric current to flow through an external circuit. The source of mechanical energy may be a reciprocating or turbine steam engine, water falling through a turbine or waterwheel, an internal combustion engine, awind turbine, a hand crank, compressed air, or any other source of mechanical energy. Generators provide nearly all of the power for electric power grids.

IMPORTANT COMPONENTS

• STORAGE BATTERY

An electric battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.[1] Each battery consists of a negative electrode (anode) that holds charged ions, a positive electrode (cathode) that holds discharged ions, an electrolyte that allows ions to move from anode to cathode during discharge (and return during recharge) and terminals that allow current to flow out of the battery to perform work.

The magnetic flux B from the magnetassembly radially penetrates each coil section over the height of the magnet. Therefore emf V (volt) generated by a conductor of length L(m) in thea constantvelocity v

form of coils with n turns moving inmagnetic field B (T), at a constant(m/s) according to above law is

V= n.B.v.L

MATERIAL SELECTION

We will use Nylon as the material for making cylindrical rack.

MATERIAL SELECTION