| 埋地管道的非平稳随机振动 |
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| 引用本文： | 帅健, 许葵. 埋地管道的非平稳随机振动[J]. 工程力学, 2002, 19(5): 130-134. |
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| 作者姓名： | 帅健 许葵 |
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| 作者单位： | 石油大学, 北京, 机电学院, 北京, 102249 |
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| 摘 要： | 将实际地震地面运动看作为非平稳随机过程,研究了埋地管道的非平稳随机响应,考虑地面运动的相关性,导出了轴向和横向振动响应(应力和位移)的相关函数的解析表达式,实例计算了一条埋地管道非平稳随机振动的应力和位移的时间历程。
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| 关 键 词： | 非平稳响应 随机振动 埋地管道 地震 计算模型 |
| 文章编号： | 1000-4750(2002)05-130-05 |
| 收稿时间： | 2001-02-18 |
| 修稿时间： | 2001-07-13 |
NON-STATIONARY RANDOM VIBRATIONS OF BURIED PIPELINES |
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| SHUAI Jian, XU Kui. NON-STATIONARY RANDOM VIBRATIONS OF BURIED PIPELINES[J]. Engineering Mechanics, 2002, 19(5): 130-134. |
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| Authors: | SHUAI Jian XU Kui |
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| Affiliation: | School of Electrical and Mechanical Engineering, University of Petroleum, Beijing 102249 |
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| Abstract: | The actual motion of ground during earthquakes is considered as a non-stationary random process and non-stationary random responses of buried pipelines are studied. Correlation functions of the responses (stresses and displacements) for both axial and lateral vibration are derived in closed form, taking into consideration of the correlation of ground motion. An illustrative example is presented to show the history of stresses and displacements of buried pipelines under earthquake excitation. |
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| Keywords: | non stationary response random vibration buried pipeline earthquake calculation model |
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