| 桥式起重机主梁下挠处理新技术 |
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| 引用本文： | 葛黄斌,程建国,潘景忠,葛君莲,徐斌,魏敏杰,龚兵,黄培文. 桥式起重机主梁下挠处理新技术[J]. 武汉科技大学学报(自然科学版), 1998, 0(3) |
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| 作者姓名： | 葛黄斌 程建国 潘景忠 葛君莲 徐斌 魏敏杰 龚兵 黄培文 |
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| 作者单位： | 武汉计算机外部设备研究所，马鞍山钢铁公司，武汉钢铁（集团）公司，广州珠江钢铁有限责任公司，湖北省科学技术委员会，武汉冶金科技大学 |
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| 摘 要： | 采用高强度钢丝绳作为张拉元件，对２０ｔ抓斗吊车主梁进行预应力法下挠处理，恢复了主梁上拱度，取得预期效果。对所使用张拉钢丝绳的拉力、挠曲线方程和下料理论长度作了理论计算分析，并且应用计算机仿真技术取代吊车动态负荷电测试验，获得主梁动刚度、桥架主梁和钢丝绳组动载系数等动态特性参数。
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| 关 键 词： | 桥式起重机；下挠处理；计算机仿真 |
New Technique to Correct Deflection of Girders of the Overhead Traveling Crane |
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| Ge Huangbin Chen Jianguo Pan Jingzhong Ge Junlian Xu Bing Wei Mingjie Gong Bing Hang Peiwen. New Technique to Correct Deflection of Girders of the Overhead Traveling Crane[J]. Journal of Wuhan University of Science and Technology(Natural Science Edition), 1998, 0(3) |
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| Authors: | Ge Huangbin Chen Jianguo Pan Jingzhong Ge Junlian Xu Bing Wei Mingjie Gong Bing Hang Peiwen |
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| Affiliation: | Ge Huangbin Chen Jianguo Pan Jingzhong Ge Junlian Xu Bing Wei Mingjie Gong Bing Hang Peiwen |
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| Abstract: | Using the high strength rope as a tensile element,the deflection of girders of 20 ton grab crane were corrected by the prestressed ropes.The desired result was achieved.The tensile stress,deflection curve equation,and theoretical length of the tensile ropes have been calculated.And the computer simulation substituted for the dynamic load test.The dynamic stiffness of the girders and dynamic load factors of the girders and ropes and other values were given by simulation calculation. |
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| Keywords: | overhead traveling crane deflection computer simulation |
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