FRICTION AND IMPACT DAMPING IN A TRUSS USING PINNED JOINTS
FRICTION AND IMPACT DAMPING IN A TRUSS USING PINNED JOINTS
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使用销接接头的桁架中的摩擦和冲击阻尼
DOI：
10.1142/9789812830166_0004
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
J. Dutson
中科院分区：
文献类型：
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作者：
S. Folkman;B. D. Ferney;Jeffrey Bingham;J. Dutson
犹他州立大学的研究人员一直在研究桁架结构减震的机制，这可归因于连接的销钉。所研究的接头是带有间隙配合销的典型的夹头/唐头接头。对国内外有关减振机理的研究工作进行了综述。推导了由伸展运动或转动运动引起的摩擦引起的阻尼的表达式。讨论了冲击减振的机理。给出了一个具有八个铰接节点的桁架的测试结果，并论证了重力对阻尼力的影响。总结了摩擦和冲击对桁架减振的作用。讨论了一种简单的节点非线性有限元模型。
Researchers at Utah State University have been investigating mechanisms involved with structural damping in a truss whichis attributable to pinned joints. The joints investigated are typical clevis/tang joint with clearance fit pins. A review of work discussing damping mechanicsms is given. Expressions for damping due to friction caused by either extensional or rotational motions are derived. Mechanisms for damping caused by impacting are discussed. Measured results for a truss with eight pinned joints are given and effects of gravity on damping are demonstrated. The role of friction and impacting on damping in the truss is summarized. A simple nonlinear finite element model of a joint is discussed.