Response of Starter Motor of an Engine Subjected to Random Vibrations

Abstract:

The automobile sector requires continuous progress in development of ‘Starter Motor’ by innovative approaches although significant progresses are made in the past. Development of Starter Motor has made it possible to start the engine by electrical means instead of doing it manually. The outstanding features of this motor are they can produce the maximum starting torque to crank the engine. In this case, we use electrical energy and convert it to mechanical energy in order to start the engine in motor vehicles. As the starter motor is mounted near the engine; vibrational disturbances produced due to either uneven road conditions or engine vibrations or both hampering the performance of starter motor which may result in breaking of component of motors. Vehicle will experience vibrations whose values are un-predictable at certain point of time causing random excitation and random vibrations. Aim of paper is to perform analytical formulation for Power Spectral Density function of Starter Motor by treating it as a cantilever beam and to find its response to random vibrations by using Finite Element Analysis (FEA).

• Periodical: Applied Mechanics and Materials (Volume 612)
• Pages: 9-16
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.612.9
• Online since: August 2014
• Authors: Rameshwar Kendre*, Satish Prabhune, Ratnakar Ghorpade
• Keywords: Gaussian Curve, Modal Analysis, Power Spectral Density, Random Vibrations

References

[1] Popular Mechanics Magazine, April (1949).

[2] Information on http://en.wikipedia.org/wiki/Starter_(engine)

[3] Information on http://en.wikipedia.org/wiki/Delco_Electronics

[4] J. Baren, What is random vibration testing, Sound & Vibration Magazine, Instrumentation Reference Issue, (2012) 9-12.

[5] S. Kumar, Analyzing random vibration fatigue, ANSYS Advantage, vol. 2 issue 3, (2008) 39-42.

[6] Basic environmental testing procedures for electronic and electrical items- part 32, Bureau of Indian Standards, IS 9000:2006, 2006.

[7] C. Razvan, L. Iulian, A car component subjected to multiple sources of random vibration, Romanian Journal of Acoustics and Vibration, vol. 9, (2012) 117-122.

[8] W. Thomson, Theory of vibration with application, second ed., Prentice Hall, New Jersey, 1981.

[9] T. Irvine, Power spectral density units: [G2/Hz], Vibrationdata Publications, Rev. A, (2000).

[10] Information on http://femci.gsfc.nasa.gov/random/randomgrms.html

[11] T. Irvine, An Introduction to random vibration, Vibrationdata Publications, Rev. B, (2000).

[12] G. Pandiyanayagam, P. Bardia, Y. Patil, Experimental and modelling studies towards random vibration, Symposium on International Automotive Technology, (2011) 1-8.