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首页> 外文会议>33rd ASPE annual meeting 2018 >THE EFFECT OF SYMMETRIC AND ASYMMETRIC DYNAMICS ON PERIOD- N BIFURCATIONS
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THE EFFECT OF SYMMETRIC AND ASYMMETRIC DYNAMICS ON PERIOD- N BIFURCATIONS

机译：对称和非对称动力学对周期N分岔的影响

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摘要

This paper described the application of time domain simulation to the prediction of milling behavior for asymmetric, symmetric, and weakly asymmetric system dynamics. These choices correspond to three common physical setups: a single degree-of-freedom flexure setup often used to perform validation experiments (asymmetric); long, flexible endmill dynamics (symmetric); and tool or workpiece-dominated dynamics with slight asymmetry in the plane of the cut (weakly asymmetric). The time domain simulation outputs included displacement and velocity, which were synchronously sampled to identify the milling behavior. The two signals were sampled at the tooth period to produce Poincare maps. Also, subharmonic periodic sampling was completed at integer multiples of the tooth period and then these results were combined with a numerical stability metric to automatically produce a stability map from a grid of time domain simulations. Experimental validation was provided for the flexure-based setups. The following results were observed.
机译：本文介绍了时域仿真在非对称，对称和弱非对称系统动力学铣削行为预测中的应用。这些选择对应于三种常见的物理设置：单自由度挠曲设置，通常用于执行验证实验（不对称）；长而灵活的立铣刀动力学（对称）；以及刀具或工件为主的动力学特性，在切削平面上略有不对称（弱不对称）。时域仿真输出包括位移和速度，对它们进行同步采样以识别铣削行为。在牙齿期间对这两个信号进行采样，以生成庞加莱图。同样，亚谐波周期性采样是在齿周期的整数倍处完成的，然后将这些结果与数值稳定性度量相结合，以从时域模拟网格中自动生成稳定性图。为基于挠曲的装置提供了实验验证。观察到以下结果。

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  • 来源
    《33rd ASPE annual meeting 2018》|2018年|47-52|共6页
  • 会议地点 Las Vegas(US)
  • 作者

    Andrew Honeycutt; Tony L. Schmitz;

  • 作者单位

    Department of Mechanical Engineering and Engineering Science University of North Carolina at Charlotte, Charlotte, NC;

    Department of Mechanical Engineering and Engineering Science University of North Carolina at Charlotte, Charlotte, NC;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
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