ハブ部を有する圧力容器ふた締結体の特性解析

概要

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The contact stress distribution, the force ratio (the relationship between an increment of bolt axial force and an internal pressure) and the gasket properties (the gasket seating width and the moment arm) in a bolted joint of a cover of the pressure vessel with a raised face metallic gasket are analyzed as a four-body contact problem using an axisymmetrical theory of elasticity. In the analysis, a hub of the body is taken into consdieration, and a cover, a raised gasket, a body and a hub are replaced with a finite solid cylinder and finite hollow cylinders, respectively The effects of the stiffness and the thickness of gasket on the contact stress distribution and the gasket properties are obtained by numerical calculations. Experiments were carried out concerning the force ratio, the maximum stress produced in bolts and the stress producd on the hub. The analytical results are satisfactorily consistent with the experimental results.
社団法人日本機械学会の論文
1991-01-25