首先对火炮漏液和漏气故障分析的必要性进行了说明 ,重点对反后坐装置处的漏液和漏气故障进行了分析。介绍了虚拟样机技术的优越性 ,阐述了装备工程研究领域应用虚拟样机技术的迫切性。讨论了火炮正常工作的三个基本条件 ,定义了包含三元组的工作状态参数 ,结合反后坐装置漏液和漏气故障建立了基于虚拟样机的火炮工作功能失效模型 ,仿真算例结果证明了模型建立的简洁性和有效性。最后 ,为对装备的质量和效能进行全面评估 ,展望了下一步工作的目标和研究方向 First of all, the necessity of the analysis of the leakage of liquid and leakage of artillery was described. The focus was on the analysis of leakage and leakage of anti-recoil device. The superiority of virtual prototype technology is introduced, and the urgency of applying virtual prototype technology in the field of equipment engineering is expounded. Three basic conditions for the normal operation of the artillery were discussed. Working parameters including the triples were defined. Based on the leakage and air leakage of the anti-recoiling device, the functional failure model of artillery was established based on the virtual prototype. The simulation results show that The simplicity and effectiveness of model building. Finally, in order to comprehensively evaluate the quality and efficiency of the equipment, the objectives and research directions for the next step are expected