基于有限元法的成形磨齿机立柱模态研究及改进  

Study on Modal Analysis and Improvement of Column in Forming Gear Grinding Machine Based on Finite Element Method

作　　者：孙国栋[1] 李欢[1] 赵大兴[1] 彭玲 

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068 [2]宜昌长机科技有限责任公司,湖北宜昌443003

出　　处：《机床与液压》2014年第8期12-15,共4页Machine Tool & Hydraulics

基　　金：湖北省自然科学基金(2010CDB03102);武汉市青年科技晨光计划(201150431128);湖北省教育厅科学研究计划资助项目(Q20121408)

摘　　要：以YK7380成形磨齿机立柱为研究对象,提出通过添加配重来改变立柱低阶模态特性的方法。对比立柱配重前后的模态特性,发现立柱配重后其固有频率和综合变形均有所下降,振型也发生了变化,特别是第4阶模态振型发生了转移。研究结果表明:对立柱添加配重的改进措施是有效,这种改进方法为立柱低阶模态的研究提供了方向。Taking the column of YK7380 forming grinding machine as the research object, the method of improving the low order modal characteristics of the column by adding weight was presented. Comparing the modal characteristics of column before and after e- quiping the counterweight, it is found that after equiping the counterweight, the natural frequency and comprehensive deformation of the column are declined, vibration mode is also changed, and especially for the fourth order modal, the vibration modal is shifted. The re- search result shows that the improvement measure by adding counterweight is effective, and this method provides a direction for the low order modal research in column.

关 键 词：磨齿机 立柱 模态分析 配重 有限元 

分 类 号：TH161.6[机械工程—机械制造及自动化]