隔振器机械阻抗特性研究  

A study on the mechanical impedance of the vibration isolator

作　　者：孙健[1] 朱石坚[1] 吕志强[1] 

机构地区：[1]海军工程大学,武汉430033

出　　处：《船海工程》2003年第4期25-29,共5页Ship & Ocean Engineering

摘　　要：针对传统的将隔振器简化为弹簧和阻尼器的模型不能反映其动态特性随频率的变化而变化的特点,对隔振器的机械阻抗特性进行了理论计算和实验研究;分别按理想弹性元件和实际弹性元件计算了圆柱型橡胶隔振器的机械阻抗,两者在低频段吻合良好,而实际弹性元件的机械阻抗在高频段出现上翘的波峰,此为高频波动效应的结果;本文还分别对6种隔振器的机械阻抗进行了测量,结果与理论分析一致。The mechanical impedance of the vibration isolator is calculated and tested.The mechanical impedance of the columnar rubber vibration isolator as an ideal elastic element and as a real elastic element are calculated respectively.The mechanical impedances of the real elastic element is consistent with that of the ideal one except for some peaks in the high frequency range caused by the mass of the rubber, which is called the wave effect. The mechanical impedances of six types of vibration isolators are tested in the experiment and the results are in agreement with the calculation.

关 键 词：隔振器 机械阻抗 动态特性 高频波动效应 舰船 

分 类 号：U661.44[交通运输工程—船舶及航道工程] U674.7[交通运输工程—船舶与海洋工程]