| 有限元法计算大吨位伸缩臂起重机起重性能 |
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| 引用本文： | 滕儒民,刘阚元,陈礼. 有限元法计算大吨位伸缩臂起重机起重性能[J]. 中国工程机械学报, 2011, 9(2): 194-199 |
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| 作者姓名： | 滕儒民 刘阚元 陈礼 |
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| 作者单位： | 1. 大连理工大学机械工程学院,辽宁大连,116023
2. 大连益利亚工程机械有限公司,辽宁大连,116025 |
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| 摘 要： | 起重性能是起重机综合起重能力的体现,准确并快速地计算起重性能对起重机的设计至关重要.将大吨位伸缩臂起重机臂架系统简化为梁,建立了简化模型,分析外载荷,采用几何非线性有限元理论计算某一工况下单元的变形和节点力,由复合应力与许用应力的关系求出额定起重量.通过算例将非线性有限元理论计算出的结果、线性理论计算的结果、样机试验实测出的结果做对比,验证了简化的合理性和此种方法在起重机起重性能计算上应用的可靠性.
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| 关 键 词： | 伸缩臂起重机 起重性能 几何非线性 有限元方法 |
FEM calculation for hoisting performance of large-tonnage telescopic boom cranes |
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| TENG Ru-min,LIU Kan-yuan,CHEN Li. FEM calculation for hoisting performance of large-tonnage telescopic boom cranes[J]. Chinese Journal of Construction Machinery, 2011, 9(2): 194-199 |
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| Authors: | TENG Ru-min LIU Kan-yuan CHEN Li |
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| Affiliation: | TENG Ru-min1,LIU Kan-yuan1,CHEN Li2(1.School of Mechanical Engineering,Dalian University of Technology,Dalian 116023,China,2.Dalian YI LIYA construction machinery Co.,Ltd,Dalian 116025,China) |
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| Abstract: | Owing that the hoisting performance reflects the overall crane hoisting capacity,the fast and accurate calculation on hoisting performance secures a crucial position in crane design.In this study,the boom system of large-tonnage telescopic boom cranes is simplified as a beam element.By analyzing the external loading and employing the nonlinear geometric FEM(Finite Element Method),the element deformation and nodal force are initially calculated under a specific working condition.Subsequently,the rated hoisti... |
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| Keywords: | telescopic boom crane hoisting performance geometric non-linearity finite element method |
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