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提出了结构高频载荷识别的统计能量分析法,给出了多子系统受激情况下,结构子系统输入功率识别的步骤和方法.对一个板壳组合结构系统的高频载荷识别分别进行了AutoSEA2仿真和实验研究.仿真与实验结果表明:采用所述方法,能很好地识别出单激励和多激励下结构子系统的输入功率.研究工作为工程结构的高频载荷识别提供了理论参考.
The statistical energy analysis method of structure high frequency load identification is put forward and the steps and methods of identifying the input power of the structure subsystem are given under the condition of multi-subsystems being excited.Analyzing the high frequency load of a composite system with plate and shell structure respectively AutoSEA2 simulation and experimental research.The simulation and experimental results show that the proposed method can well recognize the input power of the single-excitation and multi-excitation subsystems.The research work provides a theoretical reference for high-frequency load identification of engineering structures .