基于动力学仿真的某弹药输送车补弹时序优化

Optimization of Ammunition Replenishment Timing Sequence for an Ammunition Carrier Based on Dynamic Simulation

以某大口径火炮弹药输送车的供补弹系统研制为背景,从结构动力学的角度出发,对向输送车补弹过程中抓弹机的工作时序进行了动力学仿真分析及优化。在优化中,以各时序的时长为设计参数,并将抓弹机的补弹过程分为负载时序和空载时序,结合对其工作过程的分析,将工作循环的总用时、负载时序中的关键部件受力及响应作为优化目标,以各时序所需驱动力不超过原设计方案为约束,求解得到优化后的补弹时序过程。优化结果表明,在不改变原设计方案的结构的前提下,优化后的时序方案的总用时从7.4 s缩短到7.2 s,弹丸晃动减少了66.0%,抓弹手不同位置的受力降低了11.2%~16.1%,新的时序方案能够在缩短总时长的同时使补弹过程更加平稳。该优化方法同样适用于抓弹机供弹、补药机补药供药以及主炮内供输弹机构等各类相似机构的工作过程的时序设计。

Based on the research of an ammunition replenishment system of a carrier vehicle for large caliber artillery,the simulation and optimization of the ammunition grabber working timing sequence in the process of ammunition replenishment to the carrier vehicle were carried out from the perspective of structural dynamics.In the optimization,the timing length of each sequence was taken as design parameters and the replenishment process was divided into the loaded sequence and the unloaded sequence.With an analysis of the working process,the total duration and critical response were taken as optimization goals,and the driving force under the limit of the original design as constraints.The optimization result shows that,without changing the structure,the total duration is shortened from 7.4 s to 7.2 s,while projectile sloshing is reduced by 66.0%,and the forces on different positions of the grabber are reduced by 11.2%to 16.1%.That is to say,the optimized timing sequence can shorten the total time and make the reloading process more stable.The optimization method is also suitable for the timing sequence design of other similar working processes,including projectile loading by the grabber,charge replenishing by the charge replenishing mechanism and ammunition handling within the main armament.