基于ADAMS的蓝莓采摘机构设计与仿真  

Probability Failure Analysis of the Centrifugal Impeller

作　　者：张昭[1] 田宇[1] 张元良[2] 张洪武[1] ZHANG Zhao , TIAN Yu , ZHANG Yuan-liang, ZHANG Hong-wu （1. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian Liaoning 116024, China; 2. School of Mechanical Engineering, Faculty of Mechanical Engineering, Materials and Energy, Dalian University of Technology, Dalian Liaoning 116024, China）

机构地区：[1]大连理工大学运载工程与力学学部工业装备结构分析国家重点实验室工程力学系,辽宁大连116024 [2]大连理工大学机械工程与材料能源学部机械工程学院,辽宁大连116024

出　　处：《机械研究与应用》2015年第4期1-5,共5页Mechanical Research & Application

基　　金：国家自然科学基金（编号：11172057）;国家重点基础研究发展（973）计划（编号：2011CB013401）;中央高校基本科研业务费专项资金和新世纪优秀人才支持计划.

摘　　要：为了提高国内蓝蓦采摘效率，设计了一种抖动式蓝蓦采摘机构。通过建立采摘机构的三维模型采收的理论分析，并用ADAMS进行了动力学仿真分析，探讨了偏心块转速与半径对采收质量的影响参数组合。仿真结果为设计制造高效蓝蓦采摘机提供了一定的理论依据，进行了振动获得了合理的。The fatigue life of the remanufacturing impeller can be predicted by using the Monte Carlo （M-C） method and the Probabilistie Fracture Mechanics （PFM） with consideration of the uncertainty and the randomness of the parameters. Results indicate that the M-C method with PFM method is more reliable and safer for the design of the impeller with comparison to the traditional fracture mechanics method. The initial crack length, the fracture toughness, the coefficient of variation and aerody- namic forces can significantly affect the remaining fatigue life of the impeller. PFM is applied to the fatigue life prediction of the impeller and provides reference for design and maintenance of the impeller.

关 键 词：蓝莓 采摘机构 ADAMS 虚拟样机 参数优化 

分 类 号：TH452[机械工程—机械制造及自动化]