实测舰载环境温度载荷与环境温度模型载荷对发动机药柱应力响应对比分析

Analysis of the Influence of Carrier Environment Temperature Data and Environment Temperature Model on Stress Response of SRM Grain

为预估海洋环境温度对舰载导弹固体火箭发动机累积损伤的影响,保证发动机的可靠性,分别利用实测舰载环境温度数据和偏态分布环境温度模型值作为边界载荷,应用有限元法求解舰载导弹固体火箭发动机对海洋环境的温度和应力响应,得到了发动机的温度分布和应力分布。结果表明,温度模型值与实测数据对发动机药柱温度和应力的影响十分接近,可以用于研究固体火箭发动机药柱对温度载荷的响应。

To estimate the effects of oceanic environment temperature on the cumulative damage of shipborne missile solid rocket engine, and to ensure the reliability of the engine, the observed temperature data of shipborne environment and temperature model data on skewed distribution are taken as boundary condition to solve the temperature and stress response of the shipborne missile solid rocket engine to oceanic environment using the finite element method, the temperature and stress distribution of engine are obtained. The results show that the effects of temperature model and observed data on temperature and stress of the engine grain are very near, and can be applied to research the response of the solid rocket engine grain to the temperature load.