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Lever-Type Tuned Mass Damper for Alleviating Dynamic Responses

机译:用于缓解动态响应的杠杆式调谐质量阻尼器

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摘要

This study considers the structural vibration control by a lever-type tuned mass damper (LTMD). The LTMD has a constraint condition to restrict the motion at both ends of the lever. The LTMD controls the dynamic responses at two locations combining the tuned mass damper (TMD) and the constraint condition. The parameters of the LTMD are firstly estimated from the TMD parameters and should be modified by them to obtain from numerical results. The effectiveness of the LTMD is illustrated in two numerical experiments, and the sensitivity of the parameters is numerically investigated. It is shown that the LTMD leads to the remarkable displacement reduction and exhibits more definite control than the TMD system because the LTMD controls the vibration responses at two DOFs. More displacement responses are reduced when the installation locations of the LTMD coincide with the nodes to represent the largest modes' values at the first and second modes. The application of the LTMD at the dynamic system of a few degrees of freedom (DOFs) is more effective than the system of many DOFs.
机译:本研究考虑了杠杆式调谐质量阻尼器(LTMD)的结构振动控制。 LTMD具有约束条件,以限制杠杆两端的运动。 LTMD在组合调谐质量阻尼器(TMD)和约束条件的两个位置处控制动态响应。首先从TMD参数估计LTMD的参数,并且应由它们修改以从数值结果获得。 LTMD的有效性在两个数值实验中示出,参数的灵敏度在数值上进行了研究。结果表明,LTMD导致显着的位移减少,并且比TMD系统表现出更明确的控制,因为LTMD控制了两种DOF的振动响应。当LTMD的安装位置与节点一致以表示第一和第二模式的最大模式值时,减少更多位移响应。 LTMD在几次自由度(DOF)的动态系统上的应用比许多DOF的系统更有效。

著录项

  • 来源
    《Advances in civil engineering》 |2019年第14期|5824972.1-5824972.11|共11页
  • 作者

    Lee Eun-Taik; Eun Hee-Chang;

  • 作者单位

    Chung Ang Univ Dept Architectural Engn Seoul South Korea;

    Kangwon Natl Univ Dept Architectural Engn Chunchon South Korea;

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  • 原文格式 PDF
  • 正文语种 eng
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