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航天器上精密设备采用粘弹性减振器悬挂安装可获得显著的减振效果。对这类含有粘弹性边界安装阻尼的减振装置 ,结合弹性有限元及粘弹性边界阻尼的标准固体本构模型 ,导出了用于时域及频域分析基本运动方程。对时域运动方程给出了一种便捷的仿真求解方法 ,以仪表板悬挂减振装置为例进行了动力学仿真分析 ,并初步研究了粘弹性减振器特征参数的不同取值对减振性能的影响
Spacecraft precision equipment used viscoelastic shock absorber suspension installation can obtain significant damping effect. For such damping devices with viscoelastic boundary mount damping, combined with the standard solid constitutive model of elastic finite element and viscoelastic boundary damping, the basic equations of motion for time and frequency domain analysis are derived. A convenient simulation method is given for the time domain equation of motion. The dynamic simulation analysis of dash panel suspension damping device is taken as an example. The different values of the characteristic parameters of the viscoelastic vibration damper are also studied. The impact of performance