使用热刚度计算理论，进行了不同温度场和不同结构材料的热颤振特性研究。
The thermal flutter characteristics of structure in different temperature and different material are researched using the thermal stiffness analysis method.
基于经典弹性板壳理论推导管壁变形解答，得到管壁变形的解析表达式，并以此计算管壁变形刚度。
After compared with the result of tests and fitting formula, it is reasonable to deduce the resolution of tube wall stiffness based on the elastic theory.
螺旋槽干气密封试验分析了干气密封螺旋槽几何参数对开启力、功耗、泄漏率和气膜刚度的影响，并通过理论计算对试验数据给予了验证。
The influences of the spiral groove parameters on the opening force, power loss, leakage rate and stiffness of gas film were investigated by the experimental test.
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