固体火箭发动机对交变环境温度瞬态响应的研究

Research on the Respond of the Solid Propellant Motor to the Alternating Environmental Temperature

摘要:

在阐述了环境温度方程、传热方程和粘弹性本构关系的基础上,用有限元法求解了固体火箭发动机对交变环境温度的温度和应力响应,给出了发动机中的温度分布和应力分布,得出了发动机中危险部位和危险季节的结论。

Abstract:

In this paper, the temperature respond and stress respond of the solid propellant motor to the alternating environmental temperature were found by finite element method on the basis of the environmental temperature model, heat transfer model and viscoelastic constitutive relation. The temperature profiles, stress profiles, and the conclusions about the dangerous position of the motor and the dangerous season were given.