| 变速移动荷载作用下的弹性地基板的动力反应分析 |
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| 引用本文： | 钟阳,周福霖,张永山. 变速移动荷载作用下的弹性地基板的动力反应分析[J]. 振动与冲击, 2008, 27(1): 61-64 |
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| 作者姓名： | 钟阳 周福霖 张永山 |
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| 作者单位： | 1. 大连理工大学土木学院,大连,116024
2. 广州大学土木学院,广州,510405 |
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| 摘 要： | 利用三维Fourier积分变换法,本文推导出了在变速移动荷载(加速或减速)作用下, 弹性地基上无限大板动态挠度和应力的解析表达式.在分析过程中把弹性地基视为文克尔地基, 分别讨论了移动荷载的速度、加速度以及地基刚度等参数对板的动态挠度和应力的影响.根据文中所给出数值算例表明,移动荷载的速度、加速度和地基的反应模量是主要影响因素.板的动态挠度和应力随着车辆荷载速度和加速度的变化而变化.
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| 关 键 词： | 无限大板 弹性地基 变速移动荷载 动力反应 变速移动荷载 荷载作用 弹性地基板 动力 反应分析 VELOCITY MOVING LOAD ELASTIC FOUNDATION PLATE RESPONSE 变化 车辆荷载 影响因素 反应模量 数值算例 参数 地基刚度 加速度 文克尔地基 过程 |
| 收稿时间： | 2007-04-04 |
| 修稿时间： | 2007-06-13 |
DYNAMIC RESPONSE TO A PLATE ON ELASTIC FOUNDATION UNDER MOVING LOAD WITH VARYING VELOCITY |
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| ZHONG Yang,ZHOU Fu-Lin,ZHANG Yong-Shan. DYNAMIC RESPONSE TO A PLATE ON ELASTIC FOUNDATION UNDER MOVING LOAD WITH VARYING VELOCITY[J]. Journal of Vibration and Shock, 2008, 27(1): 61-64 |
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| Authors: | ZHONG Yang ZHOU Fu-Lin ZHANG Yong-Shan |
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| Affiliation: | 1.School of Civ.Engrg..Dalian Univ.of Tech.Dalian 116024; 2.School of Civ.Engrg.Guangzhou Univ;Guangzhou 510405 |
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| Abstract: | Dynamic response of a plate on elastic foundation under moving loads with varying velocity is investigated and the analytical solution to its dynamic deflection and stress is obtained by using the 3 dimenal Fourier Transformation.The elastic foundation is regarded as Winkler model.It is found that the dynamic response of the plate changes with the velocity and the acceleration of the moving load.The analysis of an example shows that the velocity,the acceleration of the moving load and the stiffness of the foundation may significantly affect the dynamic response of the plate. |
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| Keywords: | infinite plate elastic foundation moving load with varying velocity dynamic response |
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