摘要
考虑到锻造操作机的重载特性,为避免因受力不均造成局部受力过大而危及机械结构的安全性,本文以某DDS锻造操作机为例,进行操作机的机构受力性能优化设计。通过灵敏度分析,以关键的机构受力构件在整个工作空间上的平均受力作为优化目标,基于多目标遗传算法NSGA II对操作机的主运动机构进行尺寸优化设计,以合理分配机构受力。与原设计相比,优化后的操作机具有更为良好的整体受力性能。本文的研究工作有助于操作机的机构设计。
The forging manipulator is heavy-duty equipment and usually needs clamp a heavy workpiece to cooperate with the forging press. In order to prevent local excessive forces from endangering the safety of the mechanical structure,the mechanical performance design for the forging manipulator is carried out. Taking a typical DDS forging manipulator as a study object, the average forces acting on some key parts of the mechanism during the whole work space are chosen as optimization objectives based on the sensi- tivity analysis,and then the size optimization for the main-motion mechanism of the manipulator is per- formed to properly distribute the forces of the mechanism using multi-objective genetic algorithm NSGA II. The result shows that the optimized manipulator has better mechanical behavior than the initial de- sign, which is helpful to the mechanism design of the manipulator.
出处
《计算力学学报》
CAS
CSCD
北大核心
2015年第2期143-148,共6页
Chinese Journal of Computational Mechanics
基金
973国家重点基础研究发展计划(2006CB705403)资助项目
关键词
锻造操作机
主运动机构
受力分析
多目标优化
forging manipulator
main-motion mechanisms force analysis
multi-objective optimization
