【摘要】 本文利用有限元素法,对三心凹底钢质无缝气瓶瓶底进行了正交设计的应力计算,分析了瓶底几何参数对其最大应力影响的主次关系。并利用模化方法拟合出瓶底最大应力与瓶底几何参数间的关系式,为瓶底的初始优化设计提供了一个简便实用的计算方法。更多还原

【Abstract】 By means of the finite element method and orthogonal design, the paper analyses the primary and secondary relations of the geometry parameters affecting the maximum stresses in the gas cylinder bases. And by using the simulation method, twocriterion formulae indicating the relations of the maximum stresses on the spherical and the ring shells to the geometric parameters have been regressed. This presents a simple and practical engineering calculation method for the stress calculation of the gas cylinder bases in the primary optimizationdesign.更多还原