磁悬浮主被动混合隔振器静稳定性分析 |
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引用本文: | 倪圆,何琳,帅长庚,李彦. 磁悬浮主被动混合隔振器静稳定性分析[J]. 船舶力学, 2015, 0(10): 1275-1281. DOI: 10.3969/j.issn.1007-7294.2015.10.013 |
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作者姓名: | 倪圆 何琳 帅长庚 李彦 |
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作者单位: | 海军工程大学 振动与噪声研究所, 武汉 430033;船舶振动噪声重点实验室, 武汉 430033 |
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基金项目: | 国防科技重点实验室基金 |
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摘 要: | 磁悬浮主被动混合隔振器是一种正负刚度并联的弹性结构。针对该结构存在的稳定性问题,建立了某型磁悬浮主被动混合隔振器的刚度模型。基于虚功原理,推导出判定弹性系统静稳定性的刚度准则。运用该准则,结合混合隔振器的刚度模型分析了该主被动混合隔振器的静稳定性。理论和实验结果表明,该混合隔振器在工作位移内,系统刚度为正,混合隔振器是静稳定的。
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关 键 词: | 磁悬浮作动器 气囊 混合隔振器 静稳定性 |
Static stability analysis of a passive-active hybrid vibration isolator |
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Abstract: | Passive-active vibration isolator using maglev actuator is a elastic structure combining positive and negative stiffness. Stiffness model of the hybrid vibration isolator is established to solve the stability problem of the structure. According to virtual work principle, the stiffness principle determining the static stability of a elastic system is derived. This stiffness principle combining the stiffness model is used to ana-lyze the static stability of the hybrid vibration isolator. Theory and experimental results show that the stiff-ness of the hybrid vibration isolator is positive for working displace, and the isolator is stable. |
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Keywords: | maglev actuator air-spring hybrid vibration isolator static stability |
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