CAJ | 학술논문

利用弹丸在膛内运动时排出部分火药气体以减小膛压是实现变威力发射的有效途径，在反恐防暴领域具有重要意义。根据经典内弹道理论及气体动力学原理，建立了变威力发射过程的内弹道数学模型，利用该模型编制计算程序对某防暴枪变威力发射内弹道过程进行了数值仿真，并研究了泄气孔位置、面积及气室容积等参数对初速、膛压的影响规律，数值仿真结果与试验结果有较好的一致性，验证了所建模型的正确性与可靠性，研究结果对变威力武器研制具有重要的指导意义。
이용탄환재당내운동시배출부분화약기체이감소당압시실현변위력발사적유효도경，재반공방폭영역구유중요의의。근거경전내탄도이론급기체동역학원리，건립료변위력발사과정적내탄도수학모형，이용해모형편제계산정서대모방폭창변위력발사내탄도과정진행료수치방진，병연구료설기공위치、면적급기실용적등삼수대초속、당압적영향규률，수치방진결과여시험결과유교호적일치성，험증료소건모형적정학성여가고성，연구결과대변위력무기연제구유중요적지도의의。
Using the principle of reducing the pressure in bore by venting part propellant gas is an effective way to realize the variable power launching,and this method has the important sig-nificance in the anti-terror areas.According to the classic interior ballistics theory and gas dy-namics principle,a mathematical model of the interior ballistics was established to describe the process of variable power launching.Based on this model,the computer program was com-piled,and the process of the interior ballistics of variable power launching of a anti-riot gun was simulated numerically.The influence rules of parameters,such as the venting location, venting area,venting chamber volume,on the muzzle velocity and the chamber pressure under different conditions were studied in detail.The numerical simulation results and the experimen-tal results have the good consistency,which verified the correctness and reliability of the estab-lished model.The study results have the great significance for the development of the variable power weapons.