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An inverse modification method for assigning antiresonant frequencies

机译:用于分配反谐振频率的逆修改方法

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摘要

An inverse modification method for the assignment of antiresonant frequencies at which no vibration will be experienced at the chosen multiple coordinates of a structure subjected to a single force is presented. And the method can also be used to assign the zero displacements at a specific frequency when the structure is subjected to multiple forces. The method determines the passive stiffness or mass modifications of the structure only by an analysis of the null space of a matrix containing the magnitudes of forces and the receptances at the coordinates of the excitations, the zero-displacement responses and the modifications. Numerical examples are presented to illustrate and validate the method. (C) 2020 Elsevier Ltd. All rights reserved.
机译:呈现了在所选择的经历单个力的结构的多个坐标处将在不振动处经历不振动的反谐振频率的反修改方法。并且该方法还可用于在结构受到多个力时以特定频率分配零位移。该方法仅通过分析包含矩阵的零点的空间和激励的坐标处的接收,零位移响应和修改的分析来确定结构的无源刚度或质量修改。提出了数值示例以说明和验证方法。 (c)2020 elestvier有限公司保留所有权利。

著录项

  • 来源
    《Applied Acoustics》 |2020年第12期|107524.1-107524.6|共6页
  • 作者

    Shi Yingsha; Li Sheng;

  • 作者单位

    Dalian Univ Technol Sch Naval Architecture State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

    Dalian Univ Technol Sch Naval Architecture State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Structural modification; Antiresonant frequency; Receptance; Zero displacement response;

    机译:结构修改;反谐频率;接收;零位移响应;

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