钳夹车双层并联过约束机构力学解算与均载性分析
China Mechanical Engineering(2017)
Abstract
为研究钳夹车双层并联过约束起升机构力传递与均载特性,基于Timoshenko梁理论建立了起升机构钳形梁刚度模型,通过联立该双层并联过约束机构弹性变形协调方程与静力平衡方程,对起升机构进行了力学解算,得到了机构分支承载力与机构刚度的映射关系.在此基础上,定义了不均衡载荷系数,分析得到了机构刚度变化及其载运偏载量对起升机构均载性能的影响规律.基于动力学仿真软件RecurDyn建立了双层并联过约束起升机构的刚柔耦合仿真模型,仿真分析结果验证了理论建模分析的正确性.
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Key words
schnabel car,parallel lifting mechanism,over constrained,load sharing
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