摘要
利用模态的空间H2范数作为各个模态对多输入-无限维空间分布输出的压电柔性梁结构动力响应贡献大小的度量,并给出了一种根据各个模态对结构动力响应的贡献大小,对带有多个压电作动器块、输出为空间分布的柔性结构进行模态挑选而获得降阶模型的方法。最后以柔性简支梁结构为例给出了仿真结果,并与常规的模态截断方法进行了比较。
In flexible structures with multi-input and spatially distributed output, the contribution of modes to the dynamic response of system may change with the location of piezoelectric actuator patches. The paper presents the procedure of model truncation for piezoelectric flexible structures with actuator patches and spatially distributed output by using the spatial norms of modes serving as a measure of the intensity of modes to system response. Simulation result is given for comparison with other truncation techniques.
出处
《机械科学与技术》
CSCD
北大核心
2005年第8期960-962,998,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
陕西省自然科学基金项目(D7010418)资助
