Browse Publications Technical Papers 1999-01-1753
1999-05-17

Suspension Force Optimization Using Quarter-Car Model with Elastomeric Elements 1999-01-1753

The effect of suspension system parameters on NVH performance is presented using the results of a design of experiments analysis of a quarter-car model with elastomeric elements. The elastomeric elements are modeled using Maxwell elements with stiffness increasing with frequency. Fourteen design parameters are considered. The force spectrum acting on the sprung mass is partitioned into frequency bands. The amplitude in each frequency band as well as location and amplitudes of resonance peaks in the force spectrum are used as response variables. Major factors that effect each response variable are quantified using sensitivity coefficients. Constrained optimization studies were run to identify the minimum and maximum responses that can be expected. Suspension and bushing designers can use this work to estimate the behavior of design alternatives early in the design process.

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