| 林家浩,智浩.平稳随机振动荷载识别的逆虚拟激励法（一）[J].计算力学学报,1998,15(2):127~136 |
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| 平稳随机振动荷载识别的逆虚拟激励法（一） |
| Inverse pseudo excitation method for loading identification of stationary random vibration (1) |
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| DOI：10.7511/jslx19982019 |
| 中文关键词: 随机振动 荷载识别 反问题 模拟 |
| 英文关键词:random vibration,loading identification,inverse problem,simulation |
| 基金项目:国家自然科学基金,国家教委博士点专项基金 |
| 林家浩 智浩 |
| 大连理工大学工业装备结构分析国家重点实验室 |
| 摘要点击次数: 1789 |
| 全文下载次数: 5 |
| 中文摘要: |
| 本文将虚拟激励法作了逆向推广，从而用确定性方式求解了平稳随机振动的荷载谱识别问题。即已知部分响应的自谱与互谱，反求多点激励间的自谱与互谱。并通过计算机模拟，讨论了识别的精度及影响因素等问题。 |
| 英文摘要: |
| In this paper, the pseudo excitation method is extended inversely to deal with the identification problem of excitation spectra for structural stationary random vibration. That is to ascertain the auto and cross spectra of the excitations from some known auto and cross spectra of responses. Through the computer simulation, the exactness and its influence factors for the identification are discussed. |
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