基于虚拟样机技术的火炮故障仿真及应用研究

通过分析火炮后坐过程,提出了表征火炮工作性能的三个指标。将虚拟样机技术引入武器装备故障仿真研究领域。结合Fortran语言编程,基于ADAMS建立了火炮虚拟样机。在建立典型故障模型的基础上,利用虚拟样机对各故障模式下的火炮性能进行了仿真。通过引入半相对灵敏度分析方法,得出节制环磨损是影响火炮性能重要因素的结论。最后,根据火炮极限射击条件,仿真获得了火炮安全工作时节制环磨损阈值,为火炮预防性维修提供了科学参考依据。

RESEARCH ON SIMULATION AND APPLICATION OF GUN FAULTS BASED ON VIRTUAL PROTOTYPING TECHNOLOGY

Three indexes related with gun performance are brought forward based on analysis of recoil process of gun. Virtual prototyping technology is introduced into simulation fields of armament. With the application of Fortran language, the virtual prototype of gun is created by using ADAMS (Automatic dynamic analysis mechanical systems). The typical faults model of recoil mechanisms is established and the performances under faulty conditions are simulated with virtual prototype. Furthermore, on the basis of introduction of semi-relative sensitivity analysis method, it is concluded that abrasion of throttling ring affect gun performance worst. Finally, the abrasion threshold of throttling ring is achieved by virtual simulation according to condition limits of firing process, and scientific references are provided to normalized and modern maintenance.