CAJ | 학술논문

针对火炮发射过程中,膛内高温火药燃气的热冲击形成的温度场对火炮寿命与射击精准度产生影响的问题,利用Ansys Workbench软件平台建立了某火炮身管的有限元模型,基于非线性瞬态热力学理论对身管内外壁的对流传热过程进行了仿真,从而得出不同射速和不同环境温度下身管温度场的分布规律,为在不同外界环境条件下合理分配射速,提高身管寿命与其射击精准度提供参考.
침대화포발사과정중,당내고온화약연기적열충격형성적온도장대화포수명여사격정준도산생영향적문제,이용Ansys Workbench연건평태건립료모화포신관적유한원모형,기우비선성순태열역학이론대신관내외벽적대류전열과정진행료방진,종이득출불동사속화불동배경온도하신관온도장적분포규률,위재불동외계배경조건하합리분배사속,제고신관수명여기사격정준도제공삼고.
For the problem that in the firing process,temperature field produced by the thermal shock of chamber temperature propellant gas affects gun life and shooting accuracy,establish the finite element of gun barrel model by using Ansys Workbench software platform ,simulate the convective heat transfer process based on the outer wall of barrel by using nonlinear transient thermodynamic theory. The temperature-time curves of both inside and outside surface are gotten under different firing modes and different environment temperature.Provide reference for the reasonable distribution of firing rate in different environmental conditions to improve the life of barrel and the shooting precision.