本文提出用环向缠绕的复合材料垫片对封头进行局部加强,使发动机在圆筒段的螺旋/环向设计应力比提高,最大限度地降低螺旋层材料重量,使压力容器的PV/W值达到最大。本文对最佳封头垫片的加强技术进行了研究和验证。利用试验容器和有限元模型,比较了封头加强的许多方法,得到了最能提高封头强度的加强形式。试验表明,采用这些加强方法封头强度可比未加强的提高17％,而重量增加极小。 In this paper, we propose to use ring-wound composite gaskets to strengthen the head locally so as to increase the helical / circumferential design stress ratio of the engine in the cylinder section, minimize the weight of the spiral layer material and make the pressure vessel PV / W The value reaches the maximum. This paper studies and verifies the reinforcement technology of the best head gasket. By means of the experimental vessel and the finite element model, many methods for enhancing the head are compared, and the reinforced form that can most improve the strength of the head is obtained. Experiments have shown that using these reinforcement methods, the head strength can be increased by 17% compared with the unswept weight, with minimal increase in weight.