卷筒轴瞬态动力学分析与疲劳寿命估算  

Transient Dynamics Analysis and Fatigue Life Estimation of Drum Shaft

作　　者：刘璐 任家骏[1] 李爱峰[2] 尚钟平 LIULu;REN Jiajun;LI Aifeng;SHANG Zhongping(College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan Shanxi, 030024, China;Taiyuan Heavy Industry Co.,Ltd, Taiyuan Shanxi, 030024,China)

机构地区：[1]太原理工大学机械工程学院,山西太原030024 [2]太原重工股份有限公司,山西太原030024

出　　处：《矿业研究与开发》2018年第4期90-93,共4页Mining Research and Development

基　　金：国家"863"计划项目(2012AA062001)

摘　　要：针对某大型矿用挖掘机提升卷筒轴,首先利用ADAMS软件进行虚拟仿真,获取到卷筒轴整个挖掘全过程的载荷谱。建立卷筒轴的三维有限元模型导入Workbench中,加载进行瞬态分析。结果得出卷筒轴的最大等效应力发生在与卷轴过盈配合处,最大应力值为242.16 MPa,其多轴高周疲劳寿命估算为3.18×10~5次。研究结果为卷筒轴的优化改进以及检修维护提供了理论依据。Aimed atraising the drum shaft of a large-scale mining excavator, firstly the virtual simulation was conducted by AD- AMS software, to obtain the load spectrum of drum shaft in the entire mining process. Then, a three-dimensional finite ele- ment model of the drum shaft was built, and inputted into the Workbench, to be loaded for transient analysis. The results showed that the maximum equivalent stress of the drum shaft generated at the interference fit region of the drum shaft, the maximum stress value was 242.16 MPa and the fatigue life of multi-shafts was estimated as 3.18 × 105 times. Consequently, the results could provide a theoretical basis for optimization and improvement as well as repair and maintenance of drum shaft.

关 键 词：矿用挖掘机 提升卷筒轴 瞬态 动力学分析 疲劳寿命 

分 类 号：TD538[矿业工程—矿山机电]