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首页> 外文会议>ASME(American Society of Mechanical Engineers)/JSME Pressure Vessels and Piping Conference: Elevated Temperature Design and Analysis, Nonlinear Analysis, and Plastic Components; 20040725-20040729; San Diego,CA; US >OPTIMUM DESIGN OF NET REINFORCED COMPOSITE PRESSURE VESSEL
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OPTIMUM DESIGN OF NET REINFORCED COMPOSITE PRESSURE VESSEL

机译：净筋复合压力容器的优化设计

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摘要

A new breed of structural reinforcement for high pressure vessels is proposed by netted filament, whereas the conventional composite containers are fabricated with continuous filament winding. An enhancement of design variation is aimed at for light-weight together with adequate structural reliability ensured by means of structural optimization technique in the present study. Modeling the net segments as bar finite elements contacting with the surface of the metallic liner, a shape-finding problem raised by the geometrical non-linearity with the finite rotation of bar element is posed. The problem is solved on the basis of principle of minimum strain energy with respect to nodal position of the element. A formulation is derived to search for the optimum configuration of net reinforcing spherical dome. The optimum length of net segment is determined so as to realize uniform strain in net. Numerical examples validate the proposed formulation.
机译：网状细丝提出了一种用于高压容器的结构增强的新品种，而常规的复合材料容器是用连续细丝缠绕制成的。本研究旨在通过轻巧的设计来增强设计变异性，并通过结构优化技术确保足够的结构可靠性。将网段建模为与金属衬里的表面接触的条形有限元，提出了由于条形有限度旋转引起的几何非线性而引起的形状确定问题。该问题是基于相对于元件的节点位置的最小应变能的原理来解决的。得出一种公式来搜索网状增强球形圆顶的最佳配置。确定网段的最佳长度，以实现网中均匀的应变。数值算例验证了所提出的公式。

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