| 升船机承船厢水体参激振动的耦合分析 |
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| 引用本文： | 石端伟,宋政,廖乐康.升船机承船厢水体参激振动的耦合分析[J].武汉大学学报(工学版),2003,36(1):77-80. |
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| 作者姓名： | 石端伟 宋政 廖乐康 |
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| 作者单位： | 1. 武汉大学动力与机械学院,湖北武汉,430072
2. 长江勘测规划设计研究院,湖北武汉,430010 |
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| 基金项目： | 国家电力公司重大科研项目(SPKJ016-06). |
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| 摘 要： | 根据流体力学势流理论,建立了三峡升船机承船厢悬挂系统刚性竖直振动与水体参激振动的偏微分方程,并转化为一组8变量非线性常微分方程组.采用龙格库塔法,对正常工况和紧急制动工况进行了数值仿真,分析了水体参激振动及承船厢悬挂系统刚性竖直振动的稳定性.将动力学系统线性化后,其数值计算结果与非线性系统的计算结果相差甚微.
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| 关 键 词： | 升船机 承船厢 参激振动 耦合分析 |
| 文章编号： | 1006-155X(2003)01-077-04 |
| 修稿时间： | 2001年12月19 |
Coupling analysis of ship_chamber of shiplift and parametric vibration of water |
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| SHI Duan_wei\,SONG Zheng\,LIAO Le_kang\.Coupling analysis of ship_chamber of shiplift and parametric vibration of water[J].Engineering Journal of Wuhan University,2003,36(1):77-80. |
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| Authors: | SHI Duan_wei\ SONG Zheng\ LIAO Le_kang\ |
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| Affiliation: | SHI Duan_wei\+1,SONG Zheng\+1,LIAO Le_kang\+2 |
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| Abstract: | A fluid_solid coupled dynamic model describing vertical rigid vibration of ship_chambers with water of the Three Gorges shiplift, is established.A group of eight_variable coupled, time_dependent and nonlinear ordinary differential equations based on the potential flow theory in fluid mechanics, are derived. A digital simulation using Runge_Kutta method on the condition of normal starting and urgent braking, are carried out; and the effects of simulation from the hoist on stability of parametric vibration, are analyzed. Then the model is transformed into linear one, and the difference of the digital simulation results between the linear model and the nonlinear model is potty. |
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| Keywords: | shiplift ship _chamber parametric_vibration coupling analysis |
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