摘要
提出一种拓扑优化智能结构压电传感器选取位置的方法,即利用可观矩阵奇异值灵敏度来识别压电传感器优化位置。首先,运用有限元方法分析了系统特征,讨论了智能结构模态的可观性,然后,推导出可观矩阵奇异值灵敏度的计算公式。最后,给出了确定压电传感器位置的优化准则和步骤。算例证明了方法的有效性。
An optimal method how to set the position of piezoelectric sensors is presented, that is, the sensitivities of the singular-value are used to determine the optimal position of the sensors. First we analyze the system features with finite element method and discuss the observability of the intelligent structure mode, then give the calculation formula to get the singular-value of the observable array. At last, both the optimized principle and steps to determine the position are put forward, and the applications illustrate that the method is feasible.
出处
《长春工业大学学报》
CAS
2009年第3期327-330,共4页
Journal of Changchun University of Technology
关键词
拓扑优化
压电传感器
奇异值灵敏度
topological optimization
piezoelectric sensor
element sensitivity of the singular-value.
