冲击载荷对火炮复进机性能的影响

为了研究火炮后坐冲击载荷对复进机性能的影响作用，采用分段处理多变指数方法，将复进机整个瞬变工作过程分为2个压缩子过程和2个膨胀子过程，分析了每个子过程中气体的实际特性。理论分析与实验结果均表明，冲击载荷作用下，火炮复进机内密闭高压气体在瞬变工作过程中的热力学特性不同于普通气动装置，其气体多变指数取值并非始终局限于等温过程与绝热过程之间，而这会对复进机性能产生明显影响。与以往处理方法相比，综合考虑了内摩擦与传热作用，使结果更加接近实际。

Effects of impulsive load on performance of artillery counter-recoil mechanisms

By the method of piecewise ploytropic exponent,the whole recoil process was divided into four different stages and the actual thermodynamic characters of the gas in each stage were analyzed.Theoretical analysis and experiments indicate that there are some differences between the gas thermodynamic characters in counter-recoil mechanisms and those in ordinary pneumatic mechanisms.The characters of the gas in counter-recoil mechanisms are not always between the isothermal process and the adiabatic process.Thes...