基于拓扑优化的某型号挖掘机斗杆后支座结构优化  

The Structural Design and Analysis of a New Excavator Arm Back Support

作　　者：王蕊 李明 姜旭东 WANG Rui;LI Ming;JIANG Xu-dong(Guangxi Liugong Machinery Co.,Ltd.,Liuzhou Guangxi 545007,China)

机构地区：[1]广西柳工机械股份有限公司,广西柳州545007

出　　处：《装备制造技术》2021年第3期174-177,共4页Equipment Manufacturing Technology

摘　　要：针对某型号挖掘机斗杆后支座结构强度不足、容易开裂的问题,通过拓扑优化和有限元分析对某机型的斗杆后支座进行结构优化,优化后的斗杆后支座应力下降了50~100 MPa。基于英国疲劳强度标准BS7608评价,耐久寿命提高约1.5倍。Topology optimization was carried out on the back support of the arm by combining hypermesh and workbench. The stress at the circular weld of the back support was reduced by 50 to 100 MPa. Based on the evaluation of British fatigue strength standard BS7608,the endurance life is increased by about 1.5 times.

关 键 词：斗杆后支座 强度 拓扑优化 耐久寿命 

分 类 号：TH122[机械工程—机械设计及理论]