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| 圆角铣削颤振稳定域建模与仿真研究 | |
| 引用本文： | 李忠群,刘强. 圆角铣削颤振稳定域建模与仿真研究[J]. 机械工程学报, 2010, 46(7). DOI: 10.3901/JME.2010.07.181 |
| 作者姓名： | 李忠群 刘强 |
| 作者单位： | 1. 湖南工业大学机械工程学院,株洲,412008 2. 北京航空航天大学高效数控加工技术研究应用中心,北京,100191 |
| 基金项目： | 国家科技支撑计划(2006BAF01B09-03);;高等学校博士学科点专项科研基金;;湖南省教育厅科学研究(08D096)资助项目 |
| 摘 要： | 为避免在圆角铣削加工中产生颤振,建立考虑再生作用的圆角铣削动力学模型,推导其平均方向力系数计算公式。鉴于圆角铣削时主轴转速通常远大于圆角处的进给角速度,两者的平均方向力系数近似相等。因此,经典直线铣削颤振稳定域解析模型适用于圆角铣削,前提是需要用最大径向啮合角代替名义径向啮合角进行仿真。根据铣刀与工件的啮合情况,将圆角铣削分为均匀切宽圆角铣削和非均匀圆角切宽铣削两类,并分别推导出其最大径向啮合角计算公式。在动力学建模基础上开发圆角铣削颤振稳定域仿真模块,仿真结果得到了切削试验的验证,为圆角铣削切削参数的选择提供了一条有效途径。 |
| 关 键 词： | 圆角铣削 颤振稳定域 动力学仿真 参数优化 |
Modeling and Simulation of Chatter Stability for Circular Milling |
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| LI Zhongqun,LIU Qiang. Modeling and Simulation of Chatter Stability for Circular Milling[J]. Chinese Journal of Mechanical Engineering, 2010, 46(7). DOI: 10.3901/JME.2010.07.181 | |
| Authors: | LI Zhongqun LIU Qiang |
| Affiliation: | 1.School of Mechanical Engineering/a>;Hunan University of Technology/a>;Zhuzhou 412008/a>;2.R&A Center of Advanced CNC Machining Technology/a>;Beihang University/a>;Beijing 100191 |
| Abstract: | To avoid chatter in circular milling,the dynamics of circular milling is modeled to include the regenerative effect,and the corresponding average directional force coefficients are derived.When the fact that the rotation speed of the spindle is much larger than the angular speed of the feedrate,the same average directional force coefficients are obtained for the circular milling with that of the linear milling by approximation.Therefore,the analytical chatter model for the linear milling can be applied to t... |
| Keywords: | Circular milling Chatter stability lobes Dynamic simulation Cutting conditions optimization |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |