强夯机多体系统刚柔耦合动力学仿真与结构优化
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TU662

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中国博士后科学基金,国家自然科学基金项目(面上项目,重点项目,重大项目)


Dynamical simulation and structural optimization of compactor based on flexible multi-body rigid-flexible coupling
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China Postdoctoral Science Foundation,The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    针对强夯机满载率高,起重卸载频繁,工作环境恶劣等特点,本文以某新型强夯机为研究对象,基于多体系统动力学理论,考虑臂架各部件的柔性,建立了强夯机多体系统刚柔耦合动力学模型,通过动态响应仿真与试验对比,研究了整机在典型工况下的动力学特性,得出了臂架关键部件的运动规律及应力结果。借助于刚柔耦合动力学计算结果,根据优化设计理论和方法建立臂架结构优化的数学模型,通过优化计算后的臂架结构应力减少12.48%,最大位移减少15.47%,臂架总质量减少6.52%,强度得以充分发挥,整机各项性能得以改善。

    Abstract:

    According to the characteristics of compactor which were highly load, frequent lifting and poor working conditions, this articleStaking a certain type of compactor as the researched object, established multi-body rigid-flexible coupling model considering the flexible of compactor’s mechanical arm. By comparing dynamic simulation and test results in a typical operating condition, the kinetic characteristics of machine were studied, the law of compactor’s mechanical arm’s motion was observed, and the stress results were obtained. Based on the results of rigid-flexible coupling dynamic simulation and the structural optimization of the boom’s mathematical model, the optimal boom structure stress reduced by 12.48%, the max-displacement decreased by 15.47%, total weight decreased by 6.52%, the compactor’s performances were greatly improved.

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袁铭鸿,万安平,童水光. 强夯机多体系统刚柔耦合动力学仿真与结构优化[J]. 科学技术与工程, 2020, 20(22): 9176-9182.
YUAN Ming-hong, 童水光. Dynamical simulation and structural optimization of compactor based on flexible multi-body rigid-flexible coupling[J]. Science Technology and Engineering,2020,20(22):9176-9182.

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历史
  • 收稿日期:2019-11-01
  • 最后修改日期:2020-04-30
  • 录用日期:2019-12-27
  • 在线发布日期: 2020-08-25
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