3233 三次元有限要素法によるばね座金のゆるみ止め性能評価(J07-2 締結・接合の力学とプロセス(2),J07 締結・接合の力学とプロセス)

概要

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Threaded fasteners are widely used in mechanical structures largely because the disassembly for maintenance is easy and low cost. However vibration-induced loosening due to dynamic loading has remained problematic and many anti-loosening fasteners are used in order to prevent loosening. In this paper we evaluate loosening proof performance of spring washer under conditions of shear loading by three-dimensional finite element analysis. The result shows that spring washer is easy to loose because of the rigid body rotation around the corner points of the spring washer. Moreover, of this rotation, loosening starts before complete slip at the nut bearing surface occurs.
一般社団法人日本機械学会の論文
2006-09-15