可调频液压式动力反共振隔振器动力学分析及优化设计

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (14) : 33-36.

论文

范德礼 1 ，吴文敏 1，董兴建 2，彭志科 2

作者信息 +

Dyanmic analysis of a frequency tunable hydraulic anti-resonant vibration isolator and its optimization

FAN Deli1，WU Wenmin1，DONG Xingjian2，PENG Zhike2

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摘要

对直升机主减安装结构进行隔振设计的目的在于阻断叶率旋翼桨毂力向机体传递，从而降低机体振动水平。针对上述主减隔振问题，提出了一种反共振频率可调的液压式动力反共振隔振器，基于拉格朗日方程建立其动力学模型。动力学分析表明：通过调节空气弹簧的刚度可调节反共振频率。进一步地，保持反共振频率不变，采用遗传算法优化设计隔振器的结构参数，可得到更宽的隔振频带，且隔振器质量更轻。

Abstract

To reduce the vibration of helicopter rotors/fuselages, a frequency tunable hydraulic anti-resonant vibration isolator was proposed.The dynamic analysis indicates that by adjusting the stiffness of the pneumatic spring the anti-resonant frequency of the vibratioin isolator can be tuned.Furthermore, a genetic algorithm was used to optimize the structural parameters of the isolator in order to obtain lager vibration isolation bandwidth under the condition that the anti-resonant frequency is constant.

关键词

动力反共振 / 频率可调 / 带宽 / 优化设计

Key words

anti-resonance

/ adjustable frequency / bandwidth / optimization

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范德礼 1,吴文敏 1，董兴建 2，彭志科 2. 可调频液压式动力反共振隔振器动力学分析及优化设计[J]. 振动与冲击, 2019, 38(14): 33-36

FAN Deli1，WU Wenmin1，DONG Xingjian2，PENG Zhike2 . Dyanmic analysis of a frequency tunable hydraulic anti-resonant vibration isolator and its optimization[J]. Journal of Vibration and Shock, 2019, 38(14): 33-36

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