x
uploads/muzzle velocity.jpg

muzzle velocity (槍彈的)初速,腔口速度。

muzzle-loader

In order to improve the accuracy of artillery fire corrections , this essay , having been integrated with the project “ research on how to determine the muzzle velocity reduction of the piece “ issued by the arms department of the general staff headquarters of pla , deals with a new method of measuring the muzzle velocity reduction of the piece 部隊測定火炮初速減退量的傳統方法是藥室增長量法。該方法已不能滿足現代炮兵精確火力打擊要求。為提高炮兵射擊修正精度,本文結合總參兵種部下達的“確定火炮初速減退量方法研究”項目,研究了一種測定火炮初速減退量的新方法。

This is the theoretical foundation for simulating the gun interior ballistic performance using the closed vessel experiment . based on the functions from closed vessel experiments , the ballistic simulation results of maximum chamber pressure , muzzle velocity and p - t curves of a 105mm gun charged with ltsc nitroamine propellant at + 50c , + 15c and - 40 environmental temperature were in good agreement with experimental data 在密閉爆發器實驗的基礎上,應用可視化程序對某105mm火炮采用低溫感硝胺火藥在+ 50 、 + 15和- 40環境溫度下的最大膛壓、初速以及膛壓?時間曲線進行了彈道模擬,模擬與實驗結果具有較好的一致性。

Having proceeded from analyzing the bore wearing and erosion by application of the new method , the mathematical model of simulating the law of the bore wearing as well as that of the relationship between the law of the bore wearing and the muzzle velocity reduction have been established 新方法從分析炮膛磨損燒蝕入手,建立了模擬炮膛磨損規律的數學模型和炮膛磨損規律與火炮初速減退量關系的數學模型。

As for one specific gun ammunition system , by use of the established mathematical models the curve of the bore wearing , the muzzle velocity reduction related to that kind of curve and the weight coefficient at each section of that curve can be simulated 對于某一火炮彈藥系統,利用建立的數學模型可模擬出炮膛磨損曲線及每一條曲線所對應的初速減退量、曲線上各段的權重系數。

From the 508 mm barrel of the m16 , the fragmentation effect lasts out to 150 m to 200 m but the short ( 368mm ) barrel of the m4 develops a lower - muzzle velocity , pulling the fragmentation limit down to 50 m to 100 m M16步槍508毫米的槍管發射后,碎片效果只在150米到200米的距離內出現,而m4卡賓槍368毫米的槍管使用了低初速槍口,將碎片有效距離減少到了50米到100米。

On the similitude artillery , 7 items of shooting tests were proceeded . these items included : muzzle velocity of projectile , pressure of gases , recoil force , efficiency of muzzle brake , muzzle shockwave , dynamic stress , stability 在模型炮上進行了7個射擊實驗項目,實驗項目包括:初速、膛壓、后坐阻力、炮口制退器效率、炮口沖擊波、動態應力、穩定性。

If we take out several measuring points along the bore axis and work out the amount of bore wearing , we can consult and calculate the muzzle velocity reduction of the piece by reference of the curve board 沿膛軸方向取若干個測點,當測出各點的炮膛磨損量后,即可從曲線板中查取計算出火炮的初速減退量。

The reasons causing gun propellant charge temperature coefficient and the methods of reducing charge temperature coefficient and increasing gun projectile muzzle velocity have been studied 研究了火炮裝藥溫度系數形成的原因以及降低火炮溫度系數提高彈丸初速的基本原理和措施。

Such muzzle velocity reduction and weight coefficient can be marked out one by one and be made up into the curve board 將每一條曲線對應的初速減退量、曲線上各段的權重系數一一標出,并可制成曲線板。

The design of cannon - shot muzzle velocity instrument based on labview and virtual instrument techonlogy 一種基于虛擬儀器技術的彈丸初速度測試儀的設計

The method of muzzle velocity measurement based on millimeter wave radar of micro - power for antiaircraft gun 用微功率毫米波雷達測定高炮初速的方法

Shooting that requires high muzzle velocity . perfect for small game hunting with an expanding 使用擴充的空頭彈,小型狩獵比賽的完美用彈。

A circuit for muzzle velocity test with radar and sky - screen controlled by computer 用計算機控制雷達測速和天幕靶測速的一種電路