缩套超高压缸的最佳化设计

The Optimal Design of Shrunk Cylinder Super High Pressure

首先推导了双层筒体基于最佳化设计原则的缩套界面压力的计算公式及径比条件。然后对某超高压缸的径比及应力进行了分析计算,发现其径比不符合最佳化设计原则,且应力分布很不均匀。最后针对该超高压缸所存在的问题,采用双层缩套圆筒的最佳化设计原则进行了最佳化设计,求得了最佳径比及尺寸,并作了应力分析。最佳化设计后的超高压缸在重量、外形体积及应力分布等方面均比原超高压缸有较大的改善,表明最佳化设计方案具有较好的技术经济效果。

First of all, the equation of shrunk interface pressure and the condition of diametrical ratio are deduced under the optimal design principle of shrunk double-layers cylinder. Based on the analysis and calculation of the diametrical ratio and strss to a super high pressure cylinder, it is found that the diametrical ratio doesnt conform to the optimal design principle and the stress isn＇t well-distributed. Finally, in this case, the improved design of the super high pressure cylinder is devised under the principle of the optimal design of shrunk double-layers cylinder, and the optimal diametrical ratio and size are obtained, as well as the analysis of stress. The super high pressure cylinder is greatly improved than the original one in terms of weight, formal volume and distribution of stress. It shows that the improved design project can get a better result technologically and economically