1984-04-01

Front Wheel Drive Engine Mount Optimization 840736

This paper presents a guide for front wheel drive transverse engine mount optimization. The rationale for trying to achieve certain powerplant mode shapes and desirable frequency trends for these mode shapes is discussed.A mathematical proof is given for conditions which will ensure that the engine firing torque pulses excite only one engine mode. This will be shown to be desirable for satisfying the many conflicting design constraints.A review of various optimization procedures which were tried is discussed and a detailed explanation of the selected MONTE CARLO procedure is given.Extensive MOTRAN computer results are presented, both for a grounded engine and for a full vehicle.

SAE MOBILUS

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