| 反拱水垫塘单底板块振动特性的理论分析与试验研究 |
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| 引用本文： | 张春财,孙建.反拱水垫塘单底板块振动特性的理论分析与试验研究[J].西安理工大学学报,2006,22(1):24-28. |
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| 作者姓名： | 张春财 孙建 |
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| 作者单位： | 1. 西安理工大学,水利水电学院,陕西,西安,710048;长沙理工大学,河海工程学院,湖南,长沙,410015
2. 西安理工大学,水利水电学院,陕西,西安,710048 |
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| 摘 要： | 对反拱水垫塘的单底板块振动进行了理论分析,提出了单底板块自由振动的最大位移公式、底板块振动分区及近壁流场的划分依据;得出反拱水垫塘底板块动力特性优于平底板块;得到反拱水垫塘单底板块振动位移的特性及特征量的沿程分布规律,提出单底板块振动沿程分为强振区和弱振区,对反拱水垫塘破坏机理的研究具有重要意义。
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| 关 键 词： | 反拱水垫塘 底板块振动 特征量 |
| 文章编号： | 1006-4710(2006)01-0024-05 |
| 收稿时间： | 2005-09-23 |
| 修稿时间： | 2005年9月23日 |
Numerical Simulation on the Typical Flow Patterns in the Plunge Pool of High Dam |
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| ZHANG Chun-cai,SUN Jian.Numerical Simulation on the Typical Flow Patterns in the Plunge Pool of High Dam[J].Journal of Xi'an University of Technology,2006,22(1):24-28. |
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| Authors: | ZHANG Chun-cai SUN Jian |
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| Abstract: | By making theoretical analysis of the vibration characteristics of a slab set in arch ring,a formula on its maximum free displacement,a division of slab vibration and a subdivide of flow field near the wall are proposed.Equations of dynamics of a slab installed in both types of cushion pool are analyzed and compared to arrive a conclusion that dynamic properties of slab in the inverted arch ring is superior to those of the flat bottom.Study on the vibration displacement of a single slab set in a inverted arch ring is carried out to propose a division of vibration along water flowing,that is,three strong vibration areas and two weak ones,and give the vibration properties and the distribution laws of characteristic variables,which will be very significant for research on the unstability mechanism of inverted arch slab. |
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| Keywords: | inverted-arch pool slab vibration characteristic variables |
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