全金属多向隔振装置的减振性能分析

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关键词：隔振装置；扩展谐波平衡法；有限元；机械阻抗；力传递率

中图分类号：TG14;TB383.4

DOI：10.3969/j.issn.1004-132X.2025.07.008 开放科学（资源服务）标识码（OSID）：

Vibration Reduction Analysis of All-metal Multi-directional Isolation Devices

ZHENG Chao LIU Jianchao WU Jun XUE Xin* School of Mechanical Engineering and Automation，Fuzhou University，Fuzhou，350116

Abstract： To meet the requirements for multi-directional loads and multi-environmental vibrations and noise reduction in marine ship equipment，an al-metal flexible multi-directional isolation device was designed based on the flexibility and compactness of spherical hinge structure.The influences of constitutive parameter evolution on the dynamic response was systematically analyzed based on a nonlinear dynamic theoretical model and a finite element simulation model. Vibration isolation performance of the devices was quantitatively evaluated by sinusoidal frequency sweep tests，and impedance and force transmissibility as characterization metrics. The accuracy of the theoretical and simulation models was validated by the acceleration frequency response results collected in the experiments. The results indicate that the device exhibits excellent vibration isolation performance，while the force transmissibility reduces to O.Ol，and the theoretical predictions， simulation outcomes，and experimental results show a high level agreement.

Key words： isolation device；extended harmonic balance method; finite element；mechanical im pedance；force transmission rate

0 引言

航天、航海设备在运行中易受不同方向的扰动和不平衡动载荷而激发各方向的强烈振动[1-3]，因此单向隔振器不能满足复杂服役工况下的隔振需求。（剩余13974字）