1996-10-01

Design and Evaluation of Engine Mounts of a Passenger Utility Vehicle 962493

This paper addresses in detail the methodology developed for the design and evaluation of engine mounting system. The design phase involves selection and laying out mount locations and specifying the insulators, in order to decouple the critical modes. The 3 main criteria to be used viz. nodal point location, centre of percussion and decoupling are discussed. The evaluation phase involves measurement of vibration and noise level at different locations in the vehicle. The evaluation tools available are the transmissibility, the Campbell diagram and peak sound pressure level. This paper presents the results of a study carried out for evaluation of existing arbitrary 3 point and 4 point mount options and a systematically developed 3 point one. It also presents a methodology for the evaluation of design and development of engine mounts.

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