基于Recurdyn的齿形推弹链推送研究

Research On Silent Chain Movement Based on Recurdyn

由于大口径火炮往往采用分装式弹药结构,在输弹过程中,弹丸必须要达到卡膛速度,以保证卡膛牢靠。为了保证弹丸卡膛速度的一致性,输弹速度必须随火炮射角变化而进行调整。对齿形推弹链在各射角下的推送速度控制进行研究,基于虚拟样机技术,通过分析推弹链工作原理,建立合理的控制算法,利用动力学分析软件Recurdyn和控制软件Matlab,建立其联合仿真模型并实现仿真运算,同时考虑到推弹链和弹丸的间接性冲击以及链条的多边形效应会导致推弹链运动的不稳定性,对销轴和链板进行刚柔耦合分析,以验证控制方案的可行性。

In the process of the ammunition ramming,due to the use of segmental structure,projectile must reach the speed of bayonet-chamber to ensure the security.In order to ensure consistency of the bayonet-chamber speed,the ramming speed must be adjusted with the change of gun angle.To research on push speed of silent chain,this paper analyzes its working principle and establishes the reasonable control algorithm and uses dynamic analysis software Recurdyn and control software Matlab to establish and calculate simulation model,while taking into account the indirect impact and chain polygon effect which may lead to movement instability.It also makes FFlex analysis of pin roll and chain plate to validate the feasibility of the control scheme.