トーションバーのインボリュートセレーションツカミ部の強度の研究
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概要
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The serrated end of a torsion bar spring should be designed to be small in some restrictive mechanisms, but design methods have not been established except for manuals based on experience. A spring damaged at the involute serrations is investigated in detail, applying fractography, and the stress in the serrated end is analyzed with the aid of a computer. It is proven that permanent deformation usually occurs at the point of the serration flanks of the anchor, where the serrations are contacted first, and the stress in the external serration roots at the point is the highest, so that a crack starts from the point, if the internal serrations do not completely overlap the external serrations. The stress amplitude can be decreased by providing a design in which the serrated anchor overlaps the insufficient serration teeth at the transition section of the torsion bar spring.
- 一般社団法人日本機械学会の論文
- 1993-04-25
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