【摘要】 针对航天领域一些微型零件的测试要求,设计了一种以压电元件为驱动源,结合柔性铰链机构的微型振动平台,建立了微型振动平台的有限元模型,模拟几种常见的控制波形,对平台在多点激励下的动态特性进行了仿真分析。结果表明,可以通过计算机设计复杂控制波形,使平台变换姿态或按一定规律振动。该文的仿真分析为平台的进一步研制提供了重要的参考依据。更多还原

【Abstract】 A micro vibration platform utilizing flexure hinges driven by piezo-actuators is presented to meet the testing need of some micro parts of spacecraft. A finite element model of the platform is built. Time dependent responses of the FEM under different load cases are simulated. Simulation results show the platform can adjust its attitude and vibrate corresponsively under the control voltages. The simulation analysis provides an important reference for the further study of the platform.更多还原