钛合金轻质枪管热-结构耦合分析

Thermal-Structure Coupling Analysis of Titanium Alloy Light-Weight Gun Barrel

为分析高温高压火药气体对钛合金枪管热性能的影响,以某型小口径钛合金轻质枪管为研究对象,建立基于ANSYS平台的枪管热-结构耦合分析模型。采用直接耦合方法,利用ANSYS参数化设计语言(APDL)编程计算枪管在高频动态热脉冲和动态压力循环作用下的温度场和瞬态应力响应,并对计算结果进行实验验证。研究结果表明:热脉冲和压力脉冲的耦合作用显著;钛合金的材料性能能满足枪管的设计要求。

In order to study the influence of the power gas with high temperature and high pressure on the titanium alloy light-weight gun barrel,taking certain type small-caliber titanium alloy light-weight gun barrel as studies object,a thermal-structure coupling model of gun barrel was established based on ANSYS platform.The direct coupling analysis is employed and the program was written based on ANSYS parameter design language.Temperature field and transient stress response of this gun barrel was calculated under the cyclic action of high-frequency dynamic thermal pulse and dynamic pressure pulse.And a series of experiments were carried out to test the simulation results.This study shows that the coupling effect of thermal pulse and pressure pulse are very obvious and material property of titanium alloy meets the requirement of the design of gun barrel.And the research results have important significance for the design and optimization of titanium alloy gun barrel.