PPT on power generation shock absorber

1. DEPARTMENT OF MECHANICAL ENGINEERING
SHETTY INSTITUTE OF TECHNOLOGY,
KALABURAGI
A SEMINAR ON
“POWER GENERATION SHOCK ABSORBER”
BY
PAVAN D KULKARNI
3TS12ME013
Guided By
Prof K.M PATIL

2. OUTLINE
• INTRODUCTION
• LITERATURE SURVEY
• OBJECTIVE
• REQUIREMENTS
• BLOCK DIAGRAM
• BLOCK DIAGRAM EXPLANATION
• ADVANTAGES
• APPLICATION
• REFERENCES

3. INTRODUCTION
• Now a day’s , vehicle energy harvesting and improvement of energy
efficiency has become more popular.
• Only 10-16% fule energy in the vehicles is utilized for driving to over
come resistance from road friction and air drag ,one most important
loss is kinetic energy dissipated by shock abosrber.
• The function of vehicle suspension system is to support the weigth of
vehicle body.

4. • Suspension is a important source of energy dissipation.
• We aim to develop a product design to harvest the energy from
motion an thermal losses in vehicle engines to better meet tomorrows
power demands in the automotive industry.

5. LITERATURE SURVEY
PAPERS AUTHOR JOURNALS SUMMARY
A preliminary study of
energy recovery in
vehicles by using
regenerative magnetic
shock absorbers.
Goldner rb,Zerigian and
Hull.
SAE paper This paper proposed
electromagnetic(EM)
shock absorbers to
transform the energy
dissipated in shock
absoebers into
electrical power.
Design of
electromagnetic shock
absorbers.
Gupta,Jendrzejczyk,
Mulcahy and hull jr
Mechanics and material
design
Thay mention that
energy regeneration is
small and may be
relevant only for electric
vehicles.
Structure and
performance analysis
of regenerative
electromagnetic shock
absorber.
Zhen longxin and Wei
xiaogang
Networks The innovative shock
absorber resembles
linear generator in
principle and can
generate electric power
through the relative
motion b/w coil ang

6. OBJECTIVES
• The design of the system that will converts kinetic energy into
electricity instead of heat through a Linear Motion Electromagnetic
System.
• Electricity is then converted into direct current through a full wave
rectifier and stored in the vehicle‟s betteries to increase battery life.
• Possible to implement in vehicle suspension with minimum design
changes.
• Can harvest energy in both expansion and compression.

7. REQUIRED MATERIAL FOR CONSTRUCTION.
• ELECTRICAL COMPONENTS
Battery
Electromagnet
Rectifire and capaciter
• MECHANICAL COMPONENTS
Frame structure
Cylinder and piston
Permanent magnet
Coil spring

8. VIEW OF COMPONENTS.
• Battery
• Rectifier
• Capaciter

9. • Cylinder and piston
• Permanent magnet
• Coil spring

10. • Suspension systems which is a main part of assembly.
• Stator windings and permanent magnet are the main parts of the
construction.
• Bridge rectifier-It is an arrangement of 4 diodes in a bridge citcuit.
Configuration that provides the same polority of output for either
polority of input.
• Capactior-It is apassive two terminal electrical component used to
store energy in the form of electric charge .

11. BLOCK DIAGRAM

12. WORKING
• This works on the principle of faraday’s law of electromagnetic induction.
• Explains that when ever the magnetic flux linked with a circuit changes, an
EMF is always induced in it.
• When shock absorber come into action simultaneously stator winding comes
into action.
• The flux cuts the permanent magnetic field ,due to this EMF is induced.
• Due to the EMF effect, the current is produced.

13. • The bridge rectifier converts the alternating current to the direct current.
• The current can be used for lightening of bulbs or it can also be stored in a
capacitor.

14. MERITS
• Shock absorbers have a great for performance, handling and stability. They
are best choice for work and severe use vehicle
• It improves fuel economy and cost saving.
• Continuous supply of energy.
• Simple in design
• Energy efficient performance and long lasting reliability

15. DEMERITS
System is the costly
 If system breakdowns it’s very difficult and costly affair to repair
it
Requires high precision machinery and skilled workers to
manufacture

16. APPLICATIONS
• In military areas
• Commercial trucking industry
• This technology can be applied to any type of vehicle
• In industrial access

17. CONCLUSION
A larger magnetic field will be necessary if more power needs to be generated.
Conversion of energy produced by a vehicle shock absorbers movements into
electrical energy, allows a significant fuel saving.
It is possible to obtain a fuel saving between 1.5 and 6%, depending on the
vehicle and on the driving conditions. Moreover, the researchers say that
this system can improve the stability of the vehicle

18. “Regenerative braking harvests large amount of power in a very short
time, in an intermittent manner”, Lie Zuo said. “However, the
regenerative shock absorbers can harvest the power in a continuous
way. On the smooth highway road, the electric shock absorbers can
improve the fuel efficiency by 2%, and on bumpy roads up to 10%
increase can be expected.
More researchers are going on to extend the tests involving other
types of vehicles such as trucks, buses and other automotive vehicles

19. BIBLIOGRAPHY
• Lei Zuo, Brian Scully, Jurgen Shestani and Yu Zhou, ‘Design and characterization of
an electromagnetic energy harvester for vehicle suspensions’, Journal of Smart
Materials and Structures, Volume 19, Number 4.
• Gupta A, Jendrzejczyk J A, Mulcahy T M and Hull J R , ‘Design of electromagnetic
shock absorbers’, International Journal of Mechanics & Material Design, Volume 3,
Number 3.
• Goldner R B, Zerigian P and Hull J R, ‘A preliminary study of energy recovery in
vehicles by using regenerative magnetic shock absorbers’, SAE Paper #2001-01-
2071.

20. • Pei-Sheng Zhang and Lei Zuo, ’Energy harvesting, ride comfort, and
road handling of regenerative vehicle suspensions’, ASME Journal of
Vibration and Acoustics, 2012.
• Zhen Longxin and Wei Xiaogang , ‘Structure and Performance
Analysis of Regenerative Electromagnetic Shock Absorber’, Journal of
networks, vol. 5, no. 12, December 2010

21. THANK YOU