| 桥式起重机运行机构反接制动时的动载荷研究 |
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| 引用本文： | 周敬宣,李艳萍,周少雄.桥式起重机运行机构反接制动时的动载荷研究[J].华中科技大学学报(自然科学版),1997(11). |
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| 作者姓名： | 周敬宣 李艳萍 周少雄 |
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| 作者单位： | 华中理工大学力学系 |
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| 摘 要： | 分析了桥式起重机反接制动过程中，车轮打滑和产生自激振动的原因，通过实验测得了动态扭矩的波形，确定了打滑的条件，推导了动载荷的计算公式，计算结果与实测值基本相符．对减缓机构动载荷提出了具体措施，对改善桥式起重机，特别是大型桥式起重机的工作性能有重要意义．
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| 关 键 词： | 桥式起重机运行机构 反接制动，动载荷 自激振动 |
Dynamic Load on Operating Mechanism of a Bridge Type Crane in Case of Braking by Reversal |
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| Zhou Jiangxuan Dept. of Mechanics,HUST,Wuhan ,China. Li Yanping Zhou Shaoxiong.Dynamic Load on Operating Mechanism of a Bridge Type Crane in Case of Braking by Reversal[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(11). |
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| Authors: | Zhou Jiangxuan Dept of Mechanics HUST Wuhan China Li Yanping Zhou Shaoxiong |
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| Institution: | Zhou Jiangxuan Dept. of Mechanics,HUST,Wuhan 430074,China. Li Yanping Zhou Shaoxiong |
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| Abstract: | The reasons why the main wheel is slipping on the track, and the self exciled vibration due to friction are occurred during braking by reversal of a bridge type crane are analyzed. The waveform of the dynamic torque is obtained by test. The conditions of main wheel slipping are proposed, and simple formula for the estimation of dynamic load is given. The calculated results agree fairly well with those by experiment. The measures to reduce the dynamic load on the mechanism are suggested. |
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| Keywords: | operating mechanism of bridge type crane braking by reversal dynamic load self excited vibration |
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