华中科技大学学报（自然科学版）2024，Vol.52Issue(6)：56-62,7.DOI:10.13245/j.hust.240620
侧向轧制变胞机构的动力学仿真与优化设计
Dynamics simulation and optimization design of side rolling metamorphic mechanism
摘要
Abstract
To solve the problems of deformation,microstructure and poor mechanical properties in arc additive manufacturing,the mechanical properties of materials can be greatly improved by rolling.To reasonably design the rolling mechanism,the dynamic analysis and optimization design of a side rolling metamorphic mechanism was carried out.The influence of the size of the rod,the speed of the driver,and the stiffness of the spring on the motion of the metamorphic mechanism were studied.First,the principle analysis of the side rolling mechanism was carried out,and the basic structure of the mechanism was obtained.Then,appropriate initial values and boundary values of design variables were selected to determine the objective function and constraint conditions.Finally,a virtual prototype model of the mechanism was established in automatic dynamic analysis of mechanical systems(ADAMS)software.Under a certain side rolling force,the minimum driving force of the driver was taken as the optimization objective to solve the simulation,and the optimal solution of the driving force and the optimal value of the design variable under the solution was obtained.Results show that the minimum driving force is reduced by 15.48%compared with that before optimization,and the influence of rod size,driver speed,and spring stiffness on the metamorphic mechanism is weakened in turn.关键词
变胞机构/电弧增材制造/优化设计/动态仿真/机械系统动力学自动分析(ADAMS)Key words
metamorphic mechanism/arc additive manufacturing/optimized design/dynamics simulation/automatic dynamic analysis of mechanical systems(ADAMS)分类
机械制造引用本文复制引用
孙乐乐,张海鸥..侧向轧制变胞机构的动力学仿真与优化设计[J].华中科技大学学报（自然科学版）,2024,52(6):56-62,7.基金项目
国家重点研发计划资助项目(2019YFB1311100). （2019YFB1311100）
