自动武器的后坐阻力直接影响着武器的射击精度。为了改善武器反后坐装置的缓冲减振性能,通过分析自动武器的后坐运动,建立了冲击载荷下磁流变阻尼器的设计模型,确定了阻尼器的结构参数、控制策略,数值分析了在不同磁场强度、后坐速度下阻尼器的特性曲线,并在减振器示功试验台上进行了测试,试验数据表明,磁流变阻尼器具有很好的阻尼平台效应,可有效抑制冲击载荷的作用。研究结果对自动武器的后坐阻力控制提供了有价值的参考。

Recoil resistance of automatic weapon directly affects its firing accuracy. In order to improve recoil mechanism's buffering function of automatic weapon, through analyzing its recoil motion, the design model of magneto-rheological dampers under impact loads was built, and the structure parameters and the control strategy were defined. The dampers' characteristic curve under different magnetic field intensities and different recoil velocities was numerically analyzed and tested on a damper indicator test bench. The test data indicate that magneto-rheological dampers have perfect damping plateau effect and effectively restrain impact loads. The research results provide valuable reference for controlling recoil resistance of automatic weapon.