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本文阐述了三斜滑面立方体型超高压装置的结构特性及受力分析以及它在高压、高温合成人造金刚石等新材料及基础科学方面的重要作用和发展概况。通过对装置主体——剖分缠绕导槽环予紧状态下的三维光弹性应力分析,研究了模型边界应力的分布规律、峰值应力的位置及应力集中系数。提出了结构强度设计的控制条件。由于结构的受力情况,几何形状及边界约束条件比较复杂,从理论上求得精确解比较困难。本文说明用三维光弹性实验应力分析方法作为高压装置应力分析的手段是可取的,弥补了理论计算的不足,其结果为结构设计提供了参考依据,具有一定的实用价值。
This article describes the structure and force analysis of the triple-slope sliding surface cube-type ultra-high pressure device and its important role in the new materials and basic sciences such as high pressure and high temperature synthesis of synthetic diamond. Through the analysis of the three-dimensional photoelastic stress of the device body-split-wound guide groove ring, the stress distribution, the location of peak stress and the stress concentration factor are studied. The control conditions of structural strength design are proposed. Due to the structure of the force situation, the geometry and the boundary constraints more complex, theoretically obtained exact solution is more difficult. This paper shows that it is desirable to use three-dimensional photoelastic experimental stress analysis method as stress analysis method of high-voltage equipment to make up for the lack of theoretical calculation. The results provide reference for structural design and have certain practical value.