计算机应用 ›› 2013, Vol. 33 ›› Issue (07): 2055-2058.DOI: 10.11772/j.issn.1001-9081.2013.07.2055

• 典型应用 • 上一篇    下一篇

基于dyna971的数控镗铣机床动态模拟仿真

武友德1,2,朱留宪1,李柏林2   

  1. 1. 四川工程职业技术学院 机电工程系,四川 德阳 618000
    2. 西南交通大学 机械工程学院,成都 610031
  • 收稿日期:2013-01-09 修回日期:2013-03-08 出版日期:2013-07-01 发布日期:2013-07-06
  • 通讯作者: 武友德
  • 作者简介:武友德(1965-),男,四川德阳人,教授,博士研究生,主要研究方向:机械设计、自动测控;朱留宪(1986-),男,山东青岛人,助教,硕士,主要研究方向:精密测控与系统;李柏林(1962-),男,广西桂林人,教授,博士,主要研究方向:机械设计及优化、图形图像处理。
  • 基金资助:

    中国重装基地基金资助项目(2006GG002)

Dynamic simulation based on dyna971 for computer numerical control boring and milling machine

WU Youde1,2,ZHU Liuxian1,LI Bailin2   

  1. 1. Department of Electromechanical Engineering, Sichuan Engineering Technical College, Deyang Sichuan 618000, China
    2. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China
  • Received:2013-01-09 Revised:2013-03-08 Online:2013-07-06 Published:2013-07-01
  • Contact: WU Youde

摘要: 落地式数控镗铣机床结构复杂,为保证机床具有良好的动态性能,在开发设计该类机床时要进行整机的动态模拟仿真分析。针对这一要求,提出一种实际设计中实用化程度较高的机床动态模拟仿真思路,首先对数控落地镗铣机床样机进行模态试验,获取床身〖CD*2〗滑座、滑座〖CD*2〗立柱、立柱〖CD*2〗主轴箱等结合面的模态参数,在对模态参数进行有限元方法优化识别后,利用COMBIN14单元模拟优化后的结合部参数建立机床整机有限元模型。在dyna971软件平台对整机有限元模型进行动态模拟仿真,从模拟仿真分析结果可以看出机床在受到外界作用力时,其输出的应力和应变变化波形平稳,说明经过上述分析而设计出的机床具有良好的动态性能。目前,该研究成果已应用于此类型机床的批量生产。

关键词: 镗铣床, 模态试验, 结合面, 参数识别, 有限元模型, 动态仿真

Abstract: To ensure good dynamic performance, a dynamic simulation analysis is needed for Computer Numerical Control (CNC) floor type boring and milling machine in the design stage because of its complex structure. According to the request, a dynamic simulation idea with a practical effect was presented. The proposed scheme firstly obtained modal parameters of joint surface such as bed-slide, slide-column, column-spindle box via the modal test of CNC floor boring and milling machine tool prototype; then joint parameters obtained by finite element optimization identification of modal parameters and furthermore simulated by COMBIN14 element were used to establish the finite element model of CNC. With the dynamic simulation on the dyna971 software platform, a good dynamic characteristic was displayed due to reposeful waveform of stress and strain, while machine tool was subject to external force effect. At present, the research result had been integrated into batch production of this kind of machine.

Key words: boring and milling machine, modal test, joint surface, parameter identification, finite element model, dynamic simulation

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