| 高压水射流数值模拟及混凝土路面切割试验研究 |
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| 引用本文： | 李自光,赵尧云,周小峰,颜荣庆,何志勇,丁小峰. 高压水射流数值模拟及混凝土路面切割试验研究[J]. 中国机械工程, 2006, 0(Z2) |
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| 作者姓名： | 李自光 赵尧云 周小峰 颜荣庆 何志勇 丁小峰 |
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| 作者单位： | 长沙理工大学，邵阳液压件有限公司，长沙理工大学，长沙理工大学，长沙理工大学，长沙理工大学 长沙，410076，邵阳，422000，长沙，410076，长沙，410076，长沙，410076，长沙，410076 |
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| 摘 要： | 探讨了高压水射流的切割机理,并对圆形喷嘴高压水射流垂直冲击水泥混凝土建立了流体动力学模型,进行了数值模拟。通过对模拟结果的分析,得到射流喷嘴最大出口压力和量纲一冲击高度对水泥混凝土在滞止点及其附近压力值的影响。根据结果选取主要参数,设计制造出高压水切割设备并且完成水泥混凝土试块的切割试验。试验达到预期效果,证明此高压水切割设备工作的有效性。
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| 关 键 词： | 高压水切割 数值模拟 增压器 水泥混凝土 |
Theory & Examination of High-pressure Water Jet Cutting for Cement Concrete Surface Road |
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| Li Ziguang Zhao Yaoyun Zhou Xiaofeng Yan Rongqing HeZhiyong Ding Xiaofeng .Changsha University of Science , Technology,Changsha, .Shaoyang Hydraulic Limited Company,Shaoyang,Hunan. Theory & Examination of High-pressure Water Jet Cutting for Cement Concrete Surface Road[J]. China Mechanical Engineering, 2006, 0(Z2) |
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| Authors: | Li Ziguang Zhao Yaoyun Zhou Xiaofeng Yan Rongqing HeZhiyong Ding Xiaofeng .Changsha University of Science & Technology Changsha .Shaoyang Hydraulic Limited Company Shaoyang Hunan |
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| Affiliation: | Li Ziguang~1 Zhao Yaoyun~2 Zhou Xiaofeng~1 Yan Rongqing~1 HeZhiyong~1 Ding Xiaofeng~1 1.Changsha University of Science & Technology,Changsha,410076 2.Shaoyang Hydraulic Limited Company,Shaoyang,Hunan,422000 |
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| Abstract: | This paper probed into the cutting mechanism of high-pressure water jet cutting and a hydrokinetics model of the high-pressure water jet from a circular nozzle vertically impinging on the concrete was established and simulated numerically.By analyzing the results the influences of maximal pressure from pressure-generating equipment,dimensionless impinging height on the pressure of the stagnation and the near region on the concrete were found.According to these theoretical analyses,a high-pressure wateriet cutting worktable was manufactured and examinations have proved the feasi- bility of the high-pressure wateriet cutting cement concrete. |
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| Keywords: | high-pressure water jet cutting numerical simulation pressurization device cement concrete |
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