| 正交异性板在随机荷载下的动力响应 |
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| 引用本文： | 周正威.正交异性板在随机荷载下的动力响应[J].同济大学学报(自然科学版),1989(2). |
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| 作者姓名： | 周正威 |
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| 作者单位： | 同济大学结构理论研究所 |
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| 摘 要： | 本文讨论正交异性矩形板在随机荷载的激励下的动力响应。假定正交异性板是线性的,激励是平稳的和在高斯情况下导出响应的相关函数与功率谱、弯矩和应力的相关性,输入输出之间的相关函数与互功率谱密度。为研究多台机器同时运行时对楼板的激励提供一定的理论依据。
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| 关 键 词： | 随机-荷载 自相关 互相关 功率谱 互功率谱 |
Dynamic Response of Orthotropic Plate under Random Load |
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| Zhou Zheng wei Research Institute of Structural Theory.Dynamic Response of Orthotropic Plate under Random Load[J].Journal of Tongji University(Natural Science),1989(2). |
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| Authors: | Zhou Zheng wei Research Institute of Structural Theory |
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| Institution: | Zhou Zheng wei Research Institute of Structural Theory |
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| Abstract: | The dynamic response of the orthotropic rectangular plate under the exci-tation of random load is discussed in this paper. Assume that the orthotropic plate is linear and the exeitation is stationary and Gaussian, the autocorrela-tion function and the power spectral density of the response, the relations Jo the moments and stresses, the cross-correlation and cross-spectral density between input and output are derived, it provides certain theoretical bases for the study of the exeitations on the floor due to the simultaneous operations of multiple machines. |
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| Keywords: | Random-load Self-correlation Cross correlation Power spectrum Cross-power spectrum |
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