projectile velocity 中文意思是什麼

projectile velocity 解釋
彈丸速度
  • projectile : n. 1. 拋射體。2. 射彈。3. 導彈，飛彈，火箭。adj. 1. 拋射的，發射的；射彈的。2. 可拋射的；推進的。3. 【動物；動物學】（觸角等）能伸出的。
  • velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
  1. Measuring muzzle velocity and loading technology of projectile

    彈丸測速裝定技術
  2. 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。
  3. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。
  4. In the paper, the projectile pushing process on firing is analyzed. the quantitative computational model of the projectile velocity to gun bore wear is built. finally, taking the 120mm gun for example, the relation of projectile velocity to gun bore wear is calculated, the phenomenon of trajectory peak is analyzed

    分析了射擊時彈丸擠進過程，建立了彈丸初速下降量與炮膛內膛磨損量計算模型，並以某火炮為實例計算了該炮彈丸初速下降量與炮膛內膛磨損量之間變化關系，分析了彈道峰現象，為身管壽命預測提供理論依據。
  5. Specification for low velocity projectile marker

    低速投擲標物規范
  6. 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。
  7. Vibration of tank gun in the process of firing is one of the main factors that affect its firing accuracy, especially the instantaneous angular motion and the instantaneous linear velocity at the point of gun muzzle when the projectile leaves the barrel bore

    影響坦克炮射擊精度的主要因素之一是火炮振動，起關鍵作用的振動分量是在彈丸出炮口瞬間炮口振動角位移和橫向線速度。
  8. The paper simulate the transient thermal response of projectile wing according to the simulation software, and discuss the ablation characteristic when the projectile wing is in different initial velocity, in different wing shape, in different atmosphere condition and in different material condition

    本文通過模擬軟體模擬了彈翼的瞬時燒蝕外形，並詳細討論了不同初速、不同翼形、不同氣象條件及不同材料條件下的燒蝕特性。
  9. In order to study the combustion process and the movement of propellant in the barrel, a multi - photo x - ray experiment system was designed. four groups of photos under different ignition systems were obtained, and these photos were manipulated with digital image manipulation technology. the gray degree of the photos was averaged, and the information, such as density, velocity of the projectile and the trace - indicating grains and confliction velocity of the propellant against the projectile under the consideration of the velocity of the projectile, was extracted and analyzed quantitatively

    本文就利用由多幅脈沖x光攝影技術所獲得的四種不同點火條件下的火炮膛內火藥顆粒群運動狀況的陰影照片，進一步利用數字圖像處理的技術及相關演算法，編制軟體對照片進行了處理，統一了照片的灰度，最終在定量上獲得了不同點火條件下的火藥顆粒的密度分佈規律、彈丸和示蹤藥粒的運動速度以及在考慮到彈丸運動的前提下的火藥顆粒與彈丸的撞擊速度。
  10. With the developing of modern military technology, high - velocity - projectile ( hvp ), which had been used as a highly efficient saturation attack weapon, was more highly regarded in power countries

    隨著現代軍事技術的不斷發展，火箭彈作為一種廉價的用來實施飽和攻擊的強有力的火力壓制武器，日益受到各個軍事強國的重視。
  11. Firstly on the basis of twin shear unified strength theory and spherical cavity expand theory it is established the expression about target defense force, given the equations of rod projectile penetrate and impact velocities on ceramic / composite target under the same pressure and verified through the experiment. secondly the analysis model of ceramic / grfp / steel composite multi - layer target penetrate depth employing above differential equation of target defense force, penetrate velocity and rod velocity. there are two team of experiments which testify separately the penetrate depth and effect with different length - to - diameter

    首先，基於雙剪統一強度理論和球型空穴膨脹理論建立了靶板抗力表達式，並通過壓力相等條件給出了桿式彈侵徹陶瓷復合靶板的侵徹速度與撞擊速度的表達式，最後用試驗進行了驗證；其次，利用上面的靶板抗力表達式、侵徹速度、彈桿速度的微分方程，建立了陶瓷/玻璃鋼/鋼板復合多層靶板侵徹深度分析模型，分兩組試驗對侵徹深度、不同長徑比的侵徹效果進行了驗證;最後，建立了桿式彈垂直侵徹陶瓷多層復合靶板的工程模型，給出了預測靶板抗彈性的k 。
  12. According to the land forces criteria ( u. s ) for ballistic limit and by using the method that the ballistic limit is equal to the average of two velocities that are partly penetration velocity and completely penetration velocity respectively, the ballistic limit is determined targets penetrated by both conical and flat - ended projectile, the result can be in the table

    結果表明，不論是尖頭彈侵徹還是鈍頭彈侵徹，這兩個板厚的船體鋼的彈道極限均未超過常規彈速范圍，一般的槍炮可輕易達到這一范圍，因此從這個意義上說，這兩個板厚的船體鋼的抗侵能力不是很理想。
  13. The error analysis of fit method to underwater gun ' s projectile velocity

    介面控制器狀態機的分析
  14. Optical design and analysis of laser screen for projectile velocity measurement

    大面積激光測速靶光學系統的設計與分析
  15. The penetration mechanism is ductile penetration. the failure models and penetration mechanism vary with the projectile velocity

    對于鈍頭彈侵徹，靶板的破損形式和侵徹機理，隨彈速的變化而不同。
  16. Under the condition of penetration by flat - ended projectiles, the noses of flat - ended projectiles keep integrity when the velocity is under the normal projectile velocity

    當彈速處于亞彈速范圍時，彈頭都保持了完好，此時彈體也視為剛性彈。
  17. When the projectile velocity reaches to the normal projectile velocity, the projectiles fracture crushingly, the penetration process is similar to the process penetrated by long rod projectile and can be divided into three processes that is crater process, steady penetration process and plugging process

    當彈速達到常規彈速后，彈體發生粉碎性破壞，此時侵徹過程類似於長桿彈侵徹，侵徹過程可分為開坑階段、定常侵徹階段和剪切沖塞階段。
  18. 4. we discuss the multi - layer composite armor penetrated by the rod projectile with the velocity of 1000m / s ~ 3000m / s

    （四）對桿式彈以1000m / s 3000m / s速度侵徹陶瓷多層復合裝甲進行了探討。
  19. Specification for low velocity resilient material projectile

    低速回彈性材料投擲規范
  20. Standard specification for low velocity resilient material projectile

    低速回彈性材料投擲物的標準規范
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