摘要
龙骨结构是某轨道机器人运行时的主要承载机构,对其进行轻量化设计对于机器人整体的轻量化具有重要的意义。该款机器人的龙骨结构存在一定的设计裕量,该龙骨结构虽然保证了轨道机器人的强度,但是同时增加了轨道机器人的整体质量。为降低机器人质量,同时保证轨道机器人的强度,对龙骨结构进行轻量化设计。与初始设计的模型相比,在保证该结构最大形变量不变的基础上,对最大等效应力和龙骨结构进行优化,龙骨结构质量减轻28.15%,最大等效应力降低0.15 MPa,龙骨结构强度提高了4.6%,实现了龙骨结构的轻量化设计。
The keel structure is the main bearing mechanism of the orbital robot,and its lightweight design is of great significance for the overall lightweight of the robot.The keel structure of this robot has a certain design margin,which ensures the strength of the robot,but the overall weight of the robot is difficult to decrease.In order to reduce the weight of the robot and ensure the operation strength of the orbital robot,this paper carries out lightweight design of the keel structure.Compared with the initial design model,the maximum equivalent stress and keel structure are optimized on the basis of keeping the maximum shape variable of the structure unchanged.The weight of the keel structure is reduced by 28.15%,the maximum equivalent stress is reduced by 0.15 MPa,the strength of the keel structure is increased by 4.6%,and the lightweight design of the keel structure is realized.
作者
张鹏程
张洪丽
赵金洋
ZHANG Pengcheng;ZHANG Hongli;ZHAO Jinyang(Laboratory of Traffic Construction and Safety Technology Engineering of Shandong,Shandong Jiaotong University,Jinan 250357,China)
出处
《机械工程师》
2023年第12期135-139,共5页
Mechanical Engineer
基金
山东交通学院科技创新项目“轨道机器人主体关键零部件轻量化设计”(2023YK046)。
关键词
轨道机器人
龙骨结构
拓扑优化
轻量化设计
尺寸优化
结构优化
orbital robot
keel structure
topology optimization
lightweight design
size optimization
structural optimization
