结构高频载荷识别的统计能量分析法

谢琼; 谢石林; 张希农

结构高频载荷识别的统计能量分析法

西安交通大学航天航空学院机械结构强度与振动国家重点实验室,西安 710049

基金项目: 国家自然科学基金(10832002,10772142); 中央高校基本科研业务费专项资金

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出版历程
- 收稿日期: 2012-01-15
- 刊出日期: 2012-08-28

Statistical energy analysis method applied to high frequency load identification of structures

State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace,Xi'an Jiaotong University,Xi'an 710049,China

摘要

摘要: 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.
- 载荷识别 /
- 高频载荷 /
- 统计能量分析 /
- 输入功率 /
- 板壳组合结构
Abstract: Application of statistical energy analysis method to high frequency load identification of structures was proposed.The approach and procedure of the input power identification of subsystems were presented for the structures subjected to multi-excitations.The simulation study using AutoSEA2 software and experimental study on high frequency load identification were respectively conducted for a plate-shell assembled structural system.Both the simulated results and experimental results show that the input power of excited subsystems can be identified accurately in the cases of single excitation and multi-excitations employing the presented identification method.The work presented provides a theoretical reference for high frequency load identification of engineering structures.
- load identification /
- high frequency loads /
- statistical energy analysis /
- input power /
- plate-shell assembled structure

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参考文献(15)

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