| 有限自由度体系多支承干扰随机振动分析 |
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| 引用本文： | 孙峰,周广春,刘悦信.有限自由度体系多支承干扰随机振动分析[J].哈尔滨建筑大学学报,1993(2). |
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| 作者姓名： | 孙峰 周广春 刘悦信 |
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| 作者单位： | 工程理论研究所
(孙峰)，理论力学教研室
(周广春)，哈尔滨市高新技术开发区(刘悦信) |
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| 摘 要： | 本文应用随机振动理论和地面运动的空间相关模型,给出了有限自由度体系多支承干扰的随机反应分析公式。由算例表明,对支承间距较大的有限自由度体系,一致与非一致地面运动输入下的反应相差甚大。因此,各支承间的差动不容忽视。
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| 关 键 词： | 随机振动 空同相关 随机反应 拟静力 |
Random Vibration of Systems with Finite Free Degrees Under Multi-support Interference |
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| Sun Feng ,Zhou Guangchun ,Liu Yuexin.Random Vibration of Systems with Finite Free Degrees Under Multi-support Interference[J].Journal of Harbin University of Civil Engineering and Architecture,1993(2). |
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| Authors: | Sun Feng Zhou Guangchun Liu Yuexin |
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| Affiliation: | Sun Feng ;Zhou Guangchun ;Liu Yuexin |
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| Abstract: | This paper presents the analytical formulas of random responses of systems with finite free degrees under multisupport interference by applying the theory of random vibration and space-interrelated ground motion model. Examples show that in large-span systems with finite free degrees there is a great difference between the response under the identical ground motion and that under the space-interrelated ground motion. Therefore, the differential motions among supports of large-span systems can not be neglected. |
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| Keywords: | random vibration space correlation random response pseudostatic |
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