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首页> 美国政府科技报告 >Passive Damping Concepts for Tubular BEAMS with Partial Rotational andTranslational End Restraints
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Passive Damping Concepts for Tubular BEAMS with Partial Rotational andTranslational End Restraints

机译：具有部分旋转和平移端约束的管状BEams的被动阻尼概念

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摘要

The main objectives of the study are: (1) identification of potential passivedamping concepts for slender tubular structural members with rotational and translational end springs under natural and forced-free vibrations; (2) evaluation of damping efficiencies of the various damping concepts; and (3) evaluation of the suitability of a theoretical finite difference analysis by comparison to the experimental results for the case of natural vibrations. Only member flexural an translation motion is considered. The natural vibration study is conducted on the seven damping concepts and for only one specific initial deflection. The most suitable of the seven dampers is further investigated under forced-free vibrations. In addition only one set of end springs is used for all of the experiments. The results show that passive damping provides a possible approach to structural vibration reduction.

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