density of propellant 中文意思是什麼

density of propellant 解釋
推進劑密度
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • of : OF ＝Old French 古法語。
  • propellant : n. 推進物，推進劑；（槍炮的）發射火藥；噴氣燃料。 high-energy propellant 高能燃料。 work horse propellant 【火箭】通用燃料。
  1. The results show that the penetrability of powder loads can be improved when suitably reducing bulk density and grain size of gun propellant, increasing nitrogen content of nc and choosing oblate spheroid explosive respectively under the constant test conditions

    結果表明，在其它試驗條件不變的條件下，適當降低發射藥堆積密度、適當提高發射藥中硝化棉（ nc ）含氮量、選用恆面燃燒的扁型藥、降低發射藥粒度均有利於提高射釘的穿透能力。
  2. 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。
  3. The two - dimensional axisymmetric subsonic - transonic - supersonic flow in an experimental arcjet thruster is simulated numerically using flux vector splitting method. the profiles of density, velocity, temperature, pressure and mach number can be obtained by the computation. the computation grid and some computed results are given here. the test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly. some working phenomena of the arcjet are observed and discussed. three different kinds of instability appeared in the process of the experiments. except some important parameters are measured, it is found that the operating stability of argon is better than that of nitrogen

    對一實驗電弧加熱式發動機二維軸對稱亞跨超音速流動進行了數值模擬，所採用的方法是矢通量分裂演算法.通過計算可以得出密度、速度、溫度、壓力和馬赫數的分佈.給出了計算所使用的網格和一些計算結果.簡要介紹了實驗所使用的設備，如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統.對所觀察到的一些工作現象進行了討論.有三種不同的不穩定性出現于實驗過程.除了所測量的一些重要參數，通過實驗發現氬比氮工作更穩定
  4. A low detonation velocity explosive with medium density ( lg / cm3 ) and proper power ( > 320ml ). which made from obsolete propellant by controlling the granularity and adding the inhibitor, is studied in this thesis ; the distribution of water in the powdery propellant is described, the effect of detonation velocity from different granularity of powdery propellant is studied and the simulated mathematical model on leakage of water in low detonation velocity explosive is also showed furthermore, the method involved in controlling the leak of water in explosive is provided. meanwhile the effect of inhibitor is experimented some of formulations and processes of low detonation velocity explosive are given in details

    廢棄發射藥可直接用來製造凝膠炸藥，在發射藥顆粒的空隙中加入氧化劑和高分子的混合溶液，經過一段時間后氧化劑溶液變成凝膠狀態即可制得灌注炸藥，該灌注炸藥具有密度較高（ 1 . 4g / cm ~ 3 ） 、抗水、爆速較高的特點；文中對灌注液所涉及的材料、工藝流程進行了研究；分析了灌注炸藥的力學性能；利用灌注炸藥的高爆速及發射藥的低爆速組成一定形狀可用來形成特殊的爆轟波，利用matlab程序設計出了平面波發生器並對影響因素進行了討論。
  5. It is an effective new processing way for loading of the solid rocket motor with high loading density, high propellant mass fraction propellant

    為今後高裝填密度、高質量比的發動機裝藥開拓出一條新途徑。
  6. In this thesis, based on analyzing the data, home and abroad, and manufacturing thick - web single - based oblate spherical propellant powder at nust, the technique of manufacturing thick - web double - based oblate spherical propellant powder was presented, and various affecting factors on its shape and density were discussed, and the technique of improving shape and density was brought forward

    本文在總結國內外大量資料和南京理工大學對單基大弧厚球扁藥製造的基礎上，研究了大弧厚雙基球扁藥的製造工藝，詳盡探討了影響其藥型和密度的各種因素，並在此基礎上提出了能較好地改善其藥型、提高其密度的工藝條件。
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