一级气体炮发射开启特性分析及试验测试验证  

Analysis and Test Verification of Launch and Opening Characteristics of First-stage Gas Gun

作　　者：张浩 陈万华[1] 张代贤 马国鹭[2] 廖国柔 ZHANG Hao;CHEN Wanhua;ZHANG Daixian;MA Guolu;LIAO Guorou(China Aerodynamic Research and Development Center,Mianyang 621000,Sichuan,China;Ministry of Education Key Laboratory of Testing Technology for Manufacturing Process,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]西南科技大学制造过程测试技术教育部重点实验室,四川绵阳621010

出　　处：《火炮发射与控制学报》2024年第2期93-96,111,共5页Journal of Gun Launch & Control

摘　　要：为了研究一级气体炮内弹道发射开启特性,考虑内腔室各联通状态,建立了基于结构参数的内弹道和开启特性的描述方程,仿真分析了一级气体炮自励式开启特性,获得了高压气室、排气室、阻尼腔、缓冲腔和弹后腔的开启过程中位移时间瞬态特性,弹体发射加速规律,明确了弹体发射自励式开启阀的开启条件,并构建了口径为50 mm的一级气体炮发射平台,测试结果表明:试验结果相对于仿真计算最大偏差小于3%,验证了基于内腔室结构参数的描述方程的适应性和准确性,为基于发射参数设计气体炮内腔室各结构参数提供了可靠的数理描述方程。In order to study the launch and opening characteristics of the first-stage gas gun,considering the connection state of the inner chamber,the description equation of the interior ballistics and opening characteristics based on the structural parameters was established.The self-excited opening characteristics of the first-stage gas gun were simulated and analyzed,and the transient characteristics of displacement time during the opening process of the high-pressure gas chamber,exhaust chamber,damping chamber,buffer chamber and rear chamber were obtained,as well as the launch acceleration law.The opening conditions of the self-excited opening valve were defined,and the launch platform of the first-stage gas gun with a calibre of 50 mm was constructed.The test results show that the maximum deviation is less than 3% compared with the simulation results,and the adaptability and accuracy of the description equation based on the structural parameters of the inner chamber is verified.This paper proposes a reliable mathematical description equation for the design of the structural parameters of the inner chamber of the gas gun based on the launch parameters.

关 键 词：气体炮 内弹道 炮口速度 自励式快开阀 

分 类 号：TJ012.1[兵器科学与技术—兵器发射理论与技术]