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Classical and numerical approaches to determining V-section band clamp axial stiffness

机译:确定V形截面带夹轴向刚度的经典和数值方法

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摘要

V-band clamp joints are used in a wide range of applications to connect circular flanges, for ducts, pipes and the turbocharger housing. Previous studies and research on V-bands are either purely empirical or analytical with limited applicability on the variety of V-band design and working conditions. In this paper models of the V-band are developed based on the classical theory of solid mechanics and the finite element method to study the behaviour of the V-bands under axial loading conditions. The good agreement between results from the developed FEA and the classical model support the suitability of the latter to model V-band joints with diameters greater than 110 mm under axial loading. The results from both models suggest that the axial stiffness for this V-band cross section reaches a peak value for V-bands with radius of approximately 150 mm across a wide range of coefficients of friction. Also, it is shown that the coefficient of friction and the wedge angle have a significant effect on the axial stiffness of V-bands.
机译:V形卡箍接头广泛用于连接圆形法兰,用于管道,管道和涡轮增压器壳体。以前对V波段的研究或研究纯粹是经验性的或分析性的,在各种V波段设计和工作条件上的适用性有限。本文基于经典的固体力学理论和有限元方法,建立了V形带的模型,以研究V形带在轴向载荷条件下的行为。发达的有限元分析结果与经典模型之间的良好一致性支持后者在轴向载荷下对直径大于110毫米的V型带接头进行建模的适用性。两种模型的结果都表明,该V形截面的轴向刚度在较大的摩擦系数范围内达到半径约为150 mm的V形带的峰值。此外,还显示出摩擦系数和楔角对V形带的轴向刚度有重要影响。

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