| 液压-气动复合锤数学建模与分析 |
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| 引用本文： | 訚耀保,胡兴华,李玉杰,沈耀冲,陆鸣九. 液压-气动复合锤数学建模与分析[J]. 中国工程机械学报, 2010, 8(4): 379-384 |
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| 作者姓名： | 訚耀保 胡兴华 李玉杰 沈耀冲 陆鸣九 |
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| 作者单位： | [1]同济大学机械工程学院,上海201804 [2]上海工程机械厂有限公司,上海200072 |
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| 基金项目： | 国家"八六三"高技术研究发展计划资助项目，国家自然科学基金资助项目，航空科学基金资助项目 |
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| 摘 要： | 分析了液压-气动复合锤的工作原理和结构特点,建立了锤体上升阶段和下降阶段的动力学数学模型.分析结果表明:采取液压-气动复合锤击技术,可以实现加速度9.8 m.s-2以上的桩体打击功能;打击能量和锤体质量、加速度、液压缸氮气室气体压力、锤体最大高度以及回油管路阻力等因素有关.所建立的数学模型和分析结果为新型液压锤的研究和开发提供了理论基础.
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| 关 键 词： | 液压-气动复合锤 加速度 数学模型 打击能量 |
Mathematical modeling and analysis on hydraulic-pneumatic-compound hammers |
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| YIN Yao-bao,HU Xing-hua,LI Yu-jie,SHEN Yao-chong,LU Ming-jiu. Mathematical modeling and analysis on hydraulic-pneumatic-compound hammers[J]. Chinese Journal of Construction Machinery, 2010, 8(4): 379-384 |
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| Authors: | YIN Yao-bao HU Xing-hua LI Yu-jie SHEN Yao-chong LU Ming-jiu |
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| Affiliation: | 1.College of Mechanical Engineering,Tongji University,Shanghai 201804,China;2.Shanghai Engineer Machinery Co.Ltd.,Shanghai 200072,China) |
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| Abstract: | In this study,the working principles and structural features of hydraulic-pneumatic-compound hammer are first analyzed.Then,the dynamic mathematical model of hammers is established at ascendant and descendant stages.Finally,it is indicated from theoretical results that the striking acceleration reaches more than 9.8 m·s-2,whereas the striking energy is associated with the hammer quality and acceleration,the gas pressure of nitrogen chamber in hydraulic cylinder,the maximum hammer height and feedback pipeline resistance.Therein,the proposed mathematical model sets a theoretical basis on research and development for new hydraulic hammers. |
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| Keywords: | hydraulic-pneumatic-compound hammer acceleration mathematical model striking energy |
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