Study on reducing recoil mechanism of jet gas with laval nozzles with double chamber

SONG Jie; LIAO Zhenqiang; LI Hongqiang; QIU Ming

doi:10.11918/j.issn.0367-6234.201708060

Chinese

您当前的位置：

首页 >

文章列表页 >

Study on reducing recoil mechanism of jet gas with laval nozzles with double chamber

更新时间：2026-10-23

- Study on reducing recoil mechanism of jet gas with laval nozzles with double chamber
- Vol. 50, Issue 10, Pages: 79-87(2018)
- 作者机构：
  
  南京理工大学机械工程学院,南京,210094
- 作者简介：
- 基金信息：
- DOI：10.11918/j.issn.0367-6234.201708060
  CLC： TJ012.1
- Published：2018
- 稿件说明：
移动端阅览
SONG Jie, LIAO Zhenqiang, LI Hongqiang, et al. Study on reducing recoil mechanism of jet gas with laval nozzles with double chamber[J]. 2018, 50(10): 79-87.
DOI：

SONG Jie, LIAO Zhenqiang, LI Hongqiang, et al. Study on reducing recoil mechanism of jet gas with laval nozzles with double chamber[J]. 2018, 50(10): 79-87. DOI： 10.11918/j.issn.0367-6234.201708060.

摘要

为解决发射高初速榴弹的榴弹机枪系统后坐力大的问题，提出了一种双药室拉瓦尔喷管气流反推减后坐技术.设计了适用于高速榴弹机枪系统的双药室拉瓦尔喷管减后坐装置，利用一维非定常流理论推导了双药室喷管低后坐武器的内弹道阶段和后效期阶段的气体动力学方程；将试验测得的压力峰值、弹丸初速及后坐力与仿真数值进行对比，验证建立的双药室喷管气流反推减后坐计算模型的正确合理性；计算双药室喷管低后坐武器后药室、前药室、导气室及喷管气室的压力，并分析压力参数随时间变化规律；对比分析双药室喷管武器与普通武器的膛压曲线、弹丸速度曲线，重点分析双药室喷管内气流压力、温度、密度和速度随时间变化曲线及在喷管内分布状况；探讨了后药室装药量、喷管导气孔直径及喷管内经对武器喷管反推力、喷管减后坐效率、弹丸初速等武器发射性能的影响.研究结果表明，在保持弹丸初速不变的情况下，合理匹配双药室减后坐结构参数，采用双药室喷管气流减后坐技术可实现武器低后坐发射的目的.

Abstract

To solve the problem of overload-recoil when launching the high muzzle velocity grenade by grenade machine gun system (GMGS)

a new effective technology of reducing the recoil force using laval nozzle device with double chambers is presented

and the device is designed and applied to the GMGS. Based on unsteady one-dimensional gas dynamic theory

the interior ballistic duration and after-effect period gas dynamics equations of the recoil device were derived. The rationality of the built mathematical model was validated by contrasting the test date and simulation results. The gas pressure of back chamber

front chamber

gas operated device and nozzle chamber was calculated and the variation laws were analyzed. The bore pressure and muzzle velocity of laval nozzle device with double chambers and conventional weapons were compared. The distribution of gas parameter in nozzle with time and the distribution of gas parameter in nozzle with position were selectively analyzed. The influence of launching performance of laval nozzle with double chambers were discussed. The results show that the GMGS can achieve low recoil launching by setting reasonable parameters of the laval nozzle device with double chambers

while the projectile velocity is unaffected.

关键词

Keywords

references

Views

248

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Incremental intrusion detection mechanism considering cost-sensitive

Small target detection algorithm for unmanned aerial vehicles based on baseline network lightweighting

Cascade iterative refinement of Dunhuang mural image inpainting

Evaluation method for node importance of Tor network based on improved ELECTRE algorithm

Infrared and visible image fusion with cross-scale and cross-attention

Related Author

No data

Related Institution

No data

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰