基于负压法炮弹气密性检测方法研究

目的实现炮弹气密性检测及其自动化、智能化设备的开发。方法提出了一种基于负压法的炮弹气密性检测方法。首先,阐述了负压法气密性检测工作原理和实施流程,并对炮弹检测设备的用例模型和检测设备功能框架进行了讨论。其次,针对工程实际,详细给出了测量腔安装密封性计算、测量腔泄漏的压差泄漏率计算、测量腔的初始测量压力值计算、炮弹气体泄漏量计算等检测算法和判定方法。结果基于负压法的炮弹气密性检测方法的灵敏度比正压法高。结论本方法可为实现对全弹的气密性检验提供参考,同时也可促进和指导炮弹气密性检验设备的研制,将有效保障炮弹气密性检验自动化设备开发效率和有效性。

Research on Air Tightness Test Detection Method of Finished Ammunition Based on Negative Pressure

Air tightness test is an important guarantee for long-term storage reliability of projectile. In view of the limitations and constraints of the finished ammunition air tightness detection methods. On the basis of analyzing the air-tightness test of projectile, a method of the finished ammunition air tightness based on negative pressure is proposed in this paper. Firstly, the working principle and implementation process of negative pressure air tightness detection were described, and the use case model and function framework of detection equipment were discussed. Secondly, according to the engineering practice, the detection algorithms and judgment methods were given in detail, such as the calculation of the installation tightness of the measuring cavity, the calculation of the differential pressure leakage rate of the measuring cavity, the calculation of the initial measured pressure value of the measuring cavity, and the calculation of the finished ammunition gas leakage. Based on the negative pressure method, the air tightness detection method of the finished ammunition can provide a reference for the realization of the whole finished ammunition air tightness inspection, and also can promote and guide the development of air tightness inspection equipment of the finished ammunition, which will effectively guarantee the efficiency and effectiveness of the development of air tightness inspection automation equipment, and provide a realization mode for the realization of air tightness detection and the development of automation and intelligent equipment.