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针对附加多个动力吸振器的有阻尼单自由度系统,本文利用结构导纳理论,引入附加动力吸振器后振动系统的修正结构导纳,推导了振源输入系统的总功率流、传输到主振系的净功率流及吸振器吸收的功率流表达式,揭示了动力吸振器对系统功率流传递特性的控制机理。提出了以功率流为控制量进行动力吸振器优化设计策略,给出了动力吸振器优化参数的配置关系。
For a damped single-degree-of-freedom system with multiple dynamic vibration absorbers attached, this paper uses the structure admittance theory to introduce the modified structure admittance of the vibration system after the additional dynamic vibration absorber and deduces the total power flow of the vibration source input system to the main The net power flow of the vibrating system and the power flow absorbed by the absorber show the control mechanism of the dynamic vibration absorber on the power flow characteristics of the system. A power vibration control strategy is proposed to optimize the dynamic vibration absorber design strategy, and the configuration relationship of dynamic vibration absorber optimization parameters is given.