| 黄艳芳,刘勇君.圆环振动拍的调整实验[J].,2023,42(2):312-323 |
| 圆环振动拍的调整实验 |
| Adjust to the beat of an asymmetric ring |
| 投稿时间：2021-12-12 修订日期：2023-03-05 |
| 中文摘要: |
| 根据非对称圆环点冲击下拍的理论模型分析拍的分布特性，本文提出了一种调整圆环拍周期和清晰度的方法。阐明圆环结构拍的发生原理，从而控制清晰度；在圆环上添加和研磨质量可以改变非对称性进而调整拍频。引入等效圆环的概念，通过在轴对称圆环上添加一个质量，建立与非轴对称圆环振动特性相同的等效圆环模型。利用该模型，计算要在非轴对称圆环添加质量的大小和位置，以便获得拍的最佳周期及清晰度。用实验和有限元法验证了该方法的有效性。 |
| 英文摘要: |
| According to the distribution of beat response by analytical model, this paper proposed a method to control both period and clarity of beat. Illustrated how the beat of annular structure was generated to control clarity. Verified the frequency of ring could be adjusted by adding mass to ring or grinding mass from ring. Introduced the concept of equivalent ring, which means establish a symmetric ring with a mass model, this model has same mode shape with asymmetric ring. By using equivalent ring, both quantity and location of mass needed to add to asymmetric ring could be found. The method of effectiveness has been verified through experiment and finite element method. |
| DOI：10.11684/j.issn.1000-310X.2023.02.014 |
| 中文关键词: 非对称圆环 拍现象 等效圆环 拍频 |
| 英文关键词: asymmetric ring beat phenomenon equivalent ring beat frequency |
| 基金项目: |
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