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在自动武器中,活动机件后坐到与缓冲簧相遇后即压缩它,使之吸收多余的能量。此过程实际上是撞击,但一般都按静载计算来设计缓冲簧。本文在综合分析刚性质量对弹性杆件的纵向撞击的波动理论的基础上,对缓冲簧的撞击应力提出了一个简便而信得过的计算方法。由于在自动武器中缓冲簧是按一定预压装配好的,作者建议采用能量观点或冲量观点对公式进行修正;由实例见:两种修正结果是很接近的。
In automatic weapons, the active part is seated and compresses it after it meets the cushion spring, absorbing excess energy. This process is actually an impact, but generally the cushion spring is designed as a dead load. Based on the comprehensive analysis of the wave theory of the rigid mass impact on the longitudinal impact of the elastic rod, this paper presents a simple and reliable calculation method for the impact stress of the buffer spring. Because in the automatic weapons buffer spring is pre-pressed according to a good assembly, the author suggests that the energy point of view or impulse to correct the formula point of view; see from the examples: the two correction results are very close.