某中型液压挖掘机工作装置轻量化设计  

Lightweight Design of Working Device of a Medium Hydraulic Excavator

作　　者：周磊[1,2] 王秋良 Zhou Lei;Wang Qiuliang

机构地区：[1]中南大学机电工程学院,湖南省长沙市410100 [2]山河智能装备股份有限公司挖掘机研究院

出　　处：《工程机械》2022年第12期96-100,I0020,共6页Construction Machinery and Equipment

摘　　要：针对某中型液压挖掘机整机重量偏重,影响整机作业性能和油耗、效率的问题,考虑优先对挖掘机工作装置这一关键部件进行轻量化设计,提出以近似模型代替仿真模型进行尺寸优化的工作装置轻量化设计方法,搭建基于ISIGHT、MSC及ABAQUS等软件的集成优化环境,在该环境下完成试验设计,实现设计变量的筛选与响应面模型的构建,采用自适应模拟退火算法对动臂和斗杆轻量化模型进行优化求解。轻量化设计后,动臂和斗杆在3种典型工况下的应力分布更均匀,静强度可靠性达标,工作装置减重达6.73%,优化效果明显。In view of the heavy weight of a medium hydraulic excavator, which affects the overall operating performance, fuel consumption and efficiency, the lightweight design of the working device, a key component of the excavator, is considered as a priority, and a lightweight design method of using an approximate model instead of a simulation model for dimension optimization is proposed. An integrated optimization environment based on ISIGHT, MSC and ABAQUS is built,in which the test design is completed to select the design variables and construct the response surface model. The adaptive simulated annealing algorithm is used to optimize the lightweight model of the boom and arm. After lightweight design,the stress distribution of the boom and arm under three typical working conditions is more uniform, the static strength reliability reaches the standard, and the weight of the working device is reduced by 6.73%, which is an obvious effect of optimization.

关 键 词：挖掘机 工作装置 轻量化 自适应模拟退火算法 

分 类 号：TU621[建筑科学—建筑技术科学]