The bracket suspended exciter, which is convenient for dismounting and adjusting, is designed based on experiment of blade forced vibration in this paper. Numerical simulation of natural frequency and modal shape of bracket is conducted through finite element method, and experimental identification of natural characteristics is also conducted. The comparison be-tween results of numerical simulation and experiment shows that the results of low order natural frequency almost tally with nu-merical analysis of bracket. The result can be used for guiding the experiment of blade forced vibration and avoiding the natu-ral frequency of bracket in the experiment of blade forced vibration in order to accurately judge the natural characteristics of blade.%设计了叶片受迫振动实验中悬挂激振器的支架,该支架拆装方便,能够快速调整位置. 采用有限元法对支架的固有频率和模态振型进行了数值仿真,并进行了固有特性实验识别. 数值仿真结果与实验结果对比表明,支架的低阶固有频率和数值分析结果基本吻合. 研究结果可用于指导叶片受迫振动实验时,保证在实验过程中能够避开支架固有频率,以准确判断叶片固有特性.
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