【摘要】 用Patran和MSC Nastran分析压电智能桁架结构振动模态,验证基于有限元法建立的智能桁架结构机电耦合动力学模型的正确性和有效性.结果表明:采用Patran和MSC Nastran针对2种典型压电智能桁架结构开展振动模态分析的结果,与采用基于有限元法建立的数学模型计算得到的模态频率及实验测试模态频率近似相等,验证基于有限元法模型的正确性和有效性,为开展主动振动控制器的设计提供模型和技术支持.更多还原

【Abstract】 To validate the correctness and effectiveness of the electromechanical coupling finite element dynamics model of piezoelectricity intelligent truss structure,the vibration modes of piezoelectricity intelligent truss structures are analyzed and calculated using Patran and MSC Nastran. As to two typical piezoelectric intelligent truss structures,the vibration mode analysis results obtained by Patran and MSC Nastran Approximately equal to the calculation results based on the mathematical model built by finite element method and the experimental results. The results demonstrate that the electromechanical coupling finite element dynamics model of piezoelectricity intelligent truss structures,following the rule of the finite element method,is correct and effective. The correctness and effectiveness of the electromechanical coupling finite element dynamics model are validated,which provides the model and technical support for the design on active vibration controller.更多还原