自动上料机械手横梁固有动特性研究  

Study on the inherent vibration features of automatic loading manipulator crossbeam

作　　者：韩斌慧[1,2] 武欣竹[1] 白钰枝[1] 原彩霞 HAN Binhui;WU Xinzhu;BAI Yuzhi;YUAN Caixia(School of Aeronautical Maintenance Engineering,Xi’an Aeronautical Polytechnic Insititute,Xi’an 710089,CHN;School of Mechanical Enginering,Taiyuan University of Science and Technology,Taiyuan 030024,CHN;Shanxi Aero Engine Maintenance Co.,Ltd.,Aero Engine Corporation of China,Jincheng 048000,CHN)

机构地区：[1]西安航空职业技术学院航空维修工程学院,陕西西安710089 [2]太原科技大学机械工程学院,山西太原030024 [3]中国航发山西航空发动机维修有限责任公司,山西晋城048000

出　　处：《制造技术与机床》2019年第8期37-41,共5页Manufacturing Technology & Machine Tool

基　　金：国家青年科学基金项目(51475317);陕西省中华职业教育社2018年职业教育研究项目(ZJS201805);西安航空职业技术学院2018年综合科研项目(18XHZH-01)

摘　　要：为实现某型自动上料机械手结构优化设计,根据同类机型设计经验确定横梁系结构中薄弱环节。通过Solid Works软件建立研究对象三维实体模型,并经适当简化后导入ANSYS Workbench软件进行带预应力模态分析,求解了横梁前六阶固有频率和振型。并采用锤击法单点激励,拾取多点响应的模态分析试验,对有限元分析结果进行了验证。结果显示,理论分析结果与试验结果最大误差值为10.46%,吻合度较高;但计算振型最大位移值偏大,为结构的减振降噪设计及结构优化提供了理论依据。In order to optimize the structure design of a certain type of automatic feeding robot structure,the weak link in the beam structure were determined according to the design experience of similar models.The 3D solid model of the research object was established by SolidWorks software,and then modified into the ANSYS Workbench software for prestressed modal analysis to solve the first six natural frequencies and modes of the beam.The modal analysis test of multi-point response was carried out by hammering single-point excitation,and the finite element analysis results were verified.The results show that the maximum error of the theoretical analysis results and the test results is 10.46%,and the degree of coincidence is higher.However,the maximum displacement value of the calculated vibration mode is too large,which provides a theoretical basis for the design and optimization of vibration and noise reduction of the structure.

关 键 词：机械手 横梁 固有动特性 模态 振型 

分 类 号：TD421.5[矿业工程—矿山机电]