论文部分内容阅读
阐述了光电平台内框架减振的必要性,对一种六自由度内框架减振系统进行了模型简化,并使用拉格朗日动力学理论对该系统进行控制方程的推导。系统的控制方程表明,当被隔振系统的质心与隔振器的几何中心重合时,系统是解耦的。扫频振动仿真分析表明该内减振系统能够隔离20Hz以上的中高频振动,该内减振系统设计合理。
The necessity of vibration reduction of the inner frame of the electro-optical platform is expounded. A simplified model of a six-freedom inner-frame vibration-damping system is given. The governing equations of the system are derived using Lagrangian dynamics theory. The governing equations of the system show that the system is decoupled when the center of mass of the isolated system coincides with the geometric center of the isolator. Sweep frequency vibration simulation analysis shows that the vibration isolation system can isolate medium and high frequency vibration above 20Hz, and the internal vibration damping system is designed reasonably.