Influences of inertial mass coefficient on frequency characteristics of ISD suspension systems

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (7) : 240-246.

YANG Xiao-feng1 , DU Yi1 , LIU Yan-ling1 , HU Jian-bin1 , LIU Chang-ning1, XU Xu2

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Abstract

The influences of inertial mass coefficient on partial frequency and dominant frequency of inerter-spring-damper (ISD) suspension systems were studied. 10 effective ISD suspensions were presented based on different permutations and combinations of inerter, spring and damper, and working features of passive mechanical components. These ISD suspensions were classified into four types of undamped suspensions according to their undamped impedances. 3 types of undamped suspensions containing an inerter were studied. It was found that partial frequency and dominant frequency numbers of these 3 types of undamped suspensions are obviously different due to effects of inerter mass impedance and new mechanical network’s topological characteristics. Simulation results indicated that partial frequency and dominant frequency of various suspensions can be reduced with increase in inertial mass coefficient to make their dominant frequencies be away from the most sensitive frequency range of human body in the vertical direction; furthermore, influences of inertial mass coefficient on partial frequency and dominant frequency of suspensions gradually decrease with increase in inertial mass coefficient.

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ISD suspension system / inertial mass coefficient / partial frequency / dominant frequency

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YANG Xiao-feng1,DU Yi1,LIU Yan-ling1,HU Jian-bin1,LIU Chang-ning1, XU Xu2. Influences of inertial mass coefficient on frequency characteristics of ISD suspension systems[J]. Journal of Vibration and Shock, 2018, 37(7): 240-246

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