Linear Characterization of Engine Mount and Body Mount for Crash Analysis
Abdolvahab Agharkakli1, Digvijay Pradip Wagh2
1Abdolvahab Agharkakli, Mechanical Engineering Department, Pune University, V.I.T College, Pune, Maharashtra, India.
2Digvijay Pradip Wagh, Mechanical Engineering Department, Pune University, V.I.T College Pune, Maharashtra, India.
Manuscript received on November 11, 2013. | Revised Manuscript received on November 20, 2013. | Manuscript published on December 30, 2013. | PP: 37-43  | Volume-3, Issue-2, December 2013. | Retrieval Number:  B2342123213/2013©BEIESP

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Abstract: This study summarizes the methodology to find the linear mount characteristics with the help of mathematical models and comparison of these results with results from MATLAB simulations. The mounts are treated at the component level, and mathematical models for the same are evaluated to get the required characteristics. The mounts are modelled as spring and damper system subjected to impact loading that occurs during crash events. The approximation of input pulse has been described mathematically, which then serves to find the characteristics of the mounts. The change in the characteristics of mounts with the change in the velocity of impact has also been studied.
Keywords: Engine Mount, Body Mount, Vibration and Harshness (NVH), Crash Pulse Approximation.