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稳定性预测:一种基于复合牛顿-科茨公式的新方法
Junqiang Zheng1,2, Pengfei Ren3, Chaofeng Zhou3
1School of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China.
Micromachines
|July 29, 2023
概括
这项研究引入了一种新的数值方法来预测削稳定性,提高预测准确性和聊天分析的收率. 该方法通过确定稳定的加工参数来确保更好的加工表面质量.
科学领域:
- 机械工程 机械工程
- 制造业科学 制造业科学
- 计算力学 计算力学 计算力学
背景情况:
- 削稳定性对于加工效率和表面质量至关重要.
- 再生性聊天显著影响削过程,导致振动和精度降低.
- 现有的稳定性预测方法往往在准确性和计算速度方面面临限制.
研究的目的:
- 开发一种新的数值方法来预测削稳定性.
- 为了提高削稳定性预测的速度和准确性.
- 在动态削模型中考虑再生喋喋不休的影响.
主要方法:
- 使用与再生聊天的状态空间方程制定动态削模型.
- 使用一个复合的牛顿-科茨公式来计算跨时间间隔的过渡函数图.
- 构建状态过渡矩阵并通过Floquet理论确定稳定性边界.
主要成果:
- 与现有方法相比,拟议的方法在单个自由度 (DOF) 模型中显示出更高的收率和预测准确性.
- 实验验证在一个两个DOF削模型上证实,在预测的稳定性边界下运行将聊降到最低.
- 该方法通过指导参数选择,成功地确保加工表面的质量.
结论:
- 基于牛顿-科茨公式的复合数值方法在磨稳定性预测方面取得了重大进展.
- 该方法有效地解决了再生聊天,从而提高了预测准确性和计算效率.
- 该方法为选择最佳加工参数提供了可靠的工具,以防止声和增强表面完整性.
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