机枪自动机抗过载特性研究

机载、车载、舰载机枪的设计与陆用武器不同的关键在于必须保证在搭载平台不同方向加速度条件下均能完成射击动作。用自动武器动力学理论和试验相结合的方法对机枪的抗过载特性进行了系统研究，建立了系统的动力学模型，对各种过载条件下自动机与枪身的运动进行了分析。以某机载机枪为例，算出了各阶段的运动参数，由此可推断机构动作的可靠性。研究结果表明：分析计算结果与试验测试数据基本一致，证明了所建理论模型和分析方法的正确性。

Research on the Overload Characteristic of the Automatic Mechanism for Machine Guns

The designs of the airborne weapons, vehicle mounted weapons and ship-borne weapons are different from those of the weapons used on the ground. Their key point is that shooting action must be ensured on their carrying platforms under changing acceleration in various directions. A systematic research on the overload characteristics of machine guns is carried out using the dynamics theory of automatic weapons and the experiment methods. A dynamical model of the machine guns is established. The motions of automatic mechanism and gun-body are analyzed in detail under all kinds of overload conditions. The kinetic parameters corresponding to every phase are calculated by taking an airborne machine gun for example, and the movement reliabilities of mechanism movement are also deduced from these facts. The results show that the analytical and experimental results are consistent with each other approximately, proving the correctness of the model and the analytical method.