projectile flat 中文意思是什麼

projectile flat 解釋
儲彈臺；彈架
  • 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。
  • flat : n 1 〈英罕〉地板；（房屋的）一層。2 一套房間；〈pl 〉分宅公寓〈美國高級公寓叫 apartment house〉。...
  1. The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera

    本文對某卷弧尾翼彈氣動特性進行了系統研究，主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算，得到升力系數、阻力系數、俯仰力矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。
  2. When targets penetrated by flat - ended projectile, shear deformation along the penetration direction appears, at the same time compressive deformation also appears in the material that is in front of the projectile. the compressive deformation begins at the back surface of the target and spreads inward

    鈍頭彈侵徹下，側壁材料發生軸向剪切變形，同時，彈體前方的材料發生壓縮變形，壓縮變形首先在靶板背表面開始，而後自背表面向靶內傳播。
  3. 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。
  4. 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。
  5. Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence. based on the principle of virtual work, static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact. it is shown that good agreement is obtained between the theoretical predictions and the available experimental data, provided that adiabatic shear plugging failure does not occur, but the influence of strain rate sensitivity is taken into account

    文摘:採用準靜態近似理論方法分析簡支圓板在平頭彈丸正撞下的變形和穿透.首先基於虛功原理得到了靜態荷載位移關系，並將其用於預測低速沖擊下圓板的能量吸收能力.當考慮了材料的應變率敏感性，並且不發生絕熱剪切沖塞破壞的前提下，理論預測和實驗結果吻合良好
分享友人
分享到 Line

分享到臉書