小口径火炮弹底压力测试方法  

The Projectile Bottom Pressure Test Method of Small Caliber Guns

作　　者：武耀艳[1,2] 王宇[1,2] 刘学柱 WU Yao-yan;WANG Yu;LIU Xue-zhu(Science and Technology on Electronic Test&Measurement Laboratory,North University of China,Taiyuan 030051,China;Key Laboratory of Instrumentation Science&Dynamic Measurement(North University of China),Ministry of Education,Taiyuan 030051,China;Shanxi Jiangyang Chemical Co.,Ltd.,Taiyuan 030041,China)

机构地区：[1]中北大学电子测试技术重点实验室,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]山西江阳化工有限公司,山西太原030041

出　　处：《中北大学学报（自然科学版）》2021年第2期129-134,共6页Journal of North University of China(Natural Science Edition)

摘　　要：小口径火炮膛内高温、高压和高过载的环境以及狭小的空间给弹底压力测试带来很多不便,为了准确测量小口径火炮弹底压力,提出了一种新的弹底压力测试方法.通过应变测试系统测出火炮身管外壁的应变,进而根据厚壁圆筒理论以及弹底压力解算公式推导出弹底压力.同时结合四阶龙格库塔算法建立弹底压力仿真模型,将仿真结果与测试结果进行对比,得出仿真曲线与测试曲线基本吻合,验证了该方法的可行性.该方法为火炮弹底压力测试提供了新的途径,对内弹道测试领域的发展具有重要意义.The high temperature,high pressure,high overload environment,and the narrow space in the chamber of the small caliber guns brought a lot of inconvenience to the projectile bottom pressure test.To accurately measure the projectile bottom pressure of small caliber guns,a new bottom pressure test method was proposed.The specific method was to test the strain on the outer wall of the barrel through the strain tester,thereby deriving the projectile bottom pressure according to the thick-walled cylinder theory and the calculation formula of the projectile bottom pressure.At the same time,the fourth-order Runge-Kutta algorithm was used to establish a simulation model of the projectile bottom pressure,and the simulation results are compared with the test results.The test curves are consistent with the simulation curves,verifying the feasibility of the method.This method provides a new way to test the projectile bottom pressure of the guns,and is of great significance to the development of the internal ballistic testing field.

关 键 词：弹底压力 小口径火炮 应变测试 厚壁圆筒理论 

分 类 号：TJ306.1[兵器科学与技术—火炮、自动武器与弹药工程]