含机构位移起重机主副臂组合臂架结构几何非线性分析

王刚; 齐朝晖; 孔宪超

doi:10.6052/j.issn.1000-4750.2013.12.1176

含机构位移起重机主副臂组合臂架结构几何非线性分析

大连理工大学工业装备结构分析国家重点实验室,辽宁,大连 116024

基金项目: 国家自然科学基金项目(11372057)

详细信息

作者简介:
王刚(1987-),男,安徽人,博士生,主要从事机械结构分析和机械系统动力学研究(E-mail: wanggang@mail.dlut.edu.cn); 孔宪超(1978-),男,河南人,博士生,主要从事机械结构稳定性研究(E-mail: kxcemail@163.com).

通讯作者:
齐朝晖(1964-),男,吉林人,教授,博士,博导,主要从事多体系统动力学和复杂机械系统动力学研究(E-mail: zhaohuiq@dlut.edu.cn).

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- 文章访问数: 345
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- PDF下载量: 160
出版历程
- 收稿日期: 2013-12-17
- 修回日期: 2014-04-20
- 刊出日期: 2015-07-24

GEOMETRIC NONLINEAR ANALYSIS FOR CRANE MAIN AND SUB-BOOM STRUCTURES WITH MECHANISM DISPLACEMENTS

State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116024, China

摘要

摘要: 工程中很多起重机械含有控制吊重位置的机构,这些附加机构约束了起重机臂架结构承载变形后的位置。机构的作用可以等效为施加到结构上的广义外力,这些外力与结构位移和机构自由度是高度耦合的。对臂架结构按长度方向划分了多个子结构,将子结构的内部位移凝聚到了左右端面上。基于共旋坐标法,建立了随子结构一起运动的随动坐标系,推导了子结构单元的广义节点内力。以履带式起重机的主副臂组合臂架结构为例,考虑到臂架需要通过变幅机构进行约束和控制,给出了机构位移附加在臂架上的广义节点外力及其导数。最后,通过起重机的副臂工况算例,给出了在不同载荷下臂架结构位移以及约束机构位移,验证了分析方法的正确性和合理性。
- 履带式起重机 /
- 主副臂组合臂架结构 /
- 机构位移 /
- 几何非线性 /
- 子结构 /
- 共旋坐标法
Abstract: A majority of lifting machineries contain the mechanisms for positioning heavy weights. These additional mechanisms constrain the locations of boom structures after deformation under loads, which can be considered as generalized applied forces related to structure and mechanism displacements. Boom structures are divided into several substructures along the longitudinal direction, and internal displacements of each substructure are reduced to the displacements of its left and right ends. Based on the Co-rotational method, an embedded coordinate system is defined, and a set of generalized nodal internal forces for substructure elements are formulated. Taking main and sub-boom structures of crawler cranes for an example and considering that the boom structures are constrained and controlled by derricking mechanisms, the additional nodal external forces and their derivatives on the substructure element nodes are obtained. At last, a numerical example of sub-boom working conditions for a kind of crawler crane is presented, in which the displacements of boom structures and mechanisms under different load conditions are obtained. The numerical example proves the validity and rationality of the analytical procedure.
- crawler crane /
- main and sub-boom structures /
- mechanism displacements /
- geometric nonlinearity /
- substructure /
- Co-rotational method

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参考文献(15)

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文章访问数: 345
HTML全文浏览量: 31
PDF下载量: 160
被引次数: 12

含机构位移起重机主副臂组合臂架结构几何非线性分析

作者简介: 王 刚(1987-),男,安徽人,博士生,主要从事机械结构分析和机械系统动力学研究(E-mail: wanggang@mail.dlut.edu.cn); 孔宪超(1978-),男,河南人,博士生,主要从事机械结构稳定性研究(E-mail: kxcemail@163.com).

通讯作者: 齐朝晖(1964-),男,吉林人,教授,博士,博导,主要从事多体系统动力学和复杂机械系统动力学研究(E-mail: zhaohuiq@dlut.edu.cn).

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出版历程

GEOMETRIC NONLINEAR ANALYSIS FOR CRANE MAIN AND SUB-BOOM STRUCTURES WITH MECHANISM DISPLACEMENTS

期刊类型引用(8)

其他类型引用(4)

计量

出版历程

目录

作者简介:
王刚(1987-),男,安徽人,博士生,主要从事机械结构分析和机械系统动力学研究(E-mail: wanggang@mail.dlut.edu.cn); 孔宪超(1978-),男,河南人,博士生,主要从事机械结构稳定性研究(E-mail: kxcemail@163.com).

通讯作者:
齐朝晖(1964-),男,吉林人,教授,博士,博导,主要从事多体系统动力学和复杂机械系统动力学研究(E-mail: zhaohuiq@dlut.edu.cn).