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功率流分析中的柔性振源子系统 被引量:4

COMPLIANT SOURCE SUBSYSTEM IN POWER FLOW ANALYSIS
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摘要 针对多子结构耦合和多扰源激励的情况,以无约束自由子结构为基础,推导建立能充分考虑振源子系统柔性并能处理多扰源之间耦合的导纳矩阵公式。据此对工程中的浮筏隔振系统,推导新型的'机组-上层隔振器-浮筏'复杂柔性振源子系统导纳公式,建立新型的适用性更广的浮筏隔振系统模型,并进行实例研究分析。结果显示,当浮筏和基础板的刚性较高时,整个系统的低频特性主要取决于刚体耦合系统模态特性,而在中高频区系统动态特性更多受浮筏和基础板柔性模态的影响;适当增加振源子系统的柔性,可有效减少输入系统及基础的功率流。研究表明,扩展出的模型可方便地分析各子系统性能参数对整个耦合系统功率流特性的影响,可适应工程中不同情况的需要。 Aimed at subsystem with multi-substructures and decrease the power flow put into either whole system and base-subsystem. So with this model how the subsystem's parameters affect the whole system's power flow characteristics can be investigated conveniently and could meet with various engineering investigation demands.
出处 《机械工程学报》 EI CAS CSCD 北大核心 2007年第1期129-132,138,共5页 Journal of Mechanical Engineering
基金 国家自然科学基金资助项目(59975053)
关键词 功率流 导纳法 多扰源激励 浮筏隔振系统 Power flow Mobility method Multi-excitation Floating raft system
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参考文献7

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同被引文献21

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