Author : Naik Nithesh, Saba Khan , Swetha Gogineni , Shweta Krishnan , Suhas Kowshik and Prajwal Shenoy

In this paper an attempt has been made to analyze and simulate the dynamic behavior of electrical contacts in starter solenoid which causes phenomenon called Contact Bounce.A model based simulation and analysis of solenoid, based on a typical practical implementation has been carried out to predict accurately the contact bouncing characteristics considering all the nonlinear dynamic interaction of various springs and masses involved.The work included the study and evaluation modal and transient structural analysis of the solenoid using ANSYS so as to serve as reference, taking into consideration force developed on the plunger due to electromagnetic interactions, dynamics of various springs, masses and damper. Also simulation of the contact bounce of the existing solenoid is also carried out using ANSYS and LS- PrePost and frequency and magnitude of undesired behavior. i.e. Contact bounce is established.

Keywords: Contact Bounce, Solenoid, Transient structural analysis, Explicit dynamic analysis.

Article published in International Conference on Advances in Mechanical Sciences 2014, Special Issue-2 (Feb 2014)