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采用顺序耦合方法,针对xz平面内的力学性能非均匀性,对热、力作用下的正交各向异性端头帽进行了热应力分析。结果表明,头部热应力呈环状;尾部Mises应力分布以90°为周期、45°方向为极小值,选择合理的连接方式十分重要;攻角使迎风子午面温度升高、应力增大,应将材料的xz平面45°方向设置在迎风线上。
The order coupling method is used to analyze the thermal stress of the orthotropic end caps under the action of heat and force in view of the non-uniform mechanical properties in the xz plane. The results show that the thermal stress in the head is ring-shaped. The distribution of the tail Mises stress is 90 ° and the minimum is 45 °. It is very important to choose a reasonable connection method. The angle of attack increases the temperature of the windward meridional surface and increases the stress , The material should be 45 ° xz plane direction set on the upwind line.