propellant grain 中文意思是什麼
propellant grain
解釋
推進劑藥柱- 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。
- grain : n 1 穀物，糧食〈英國叫 corn〉; 谷類植物。2 穀粒，籽粒。3 （沙、金、鹽等的）粒，顆粒，晶粒。4 些微...
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Abstract : solid propellant rocket motors are preferred for most ballistic missiles because they need simple maintenance and can be launched quickly. but the conventional thrust termination devices limit the depletion of every stage ' s grain and increase some extra - weight. an improved method for designing a multi - stage solid rocket based depleted shutdown was provided. in order to solve the problem of lack of thrust termination devices, a device to adjust the burnout angle will match the final burnout velocity and satisfy the desired range. the method can also limit the detection from anti - ballistic missile system
文摘:由於維護簡單和發射快速，彈道導彈多用固體火箭發動機，但繁雜的推力終止裝置使各級裝藥不能耗盡並讓結構增重.提出了一種對基於耗盡關機多級固體火箭概念設計的改進方法，此方法滿足導彈系統主要的戰技要求.為解決無推力終止裝置的末速不準問題，可在末級發動機採用姿態調整裝置，對射角進行調整，配合末速以滿足射程要求.本方法還可抑制敵方反導探測 -
Because the propellant grain is viscoelastic material, the liner and adiabatic layer are also viscoelastic one, the interface debond problem is actually interface crack about elastic - viscoelastic or bi - viscoelastic materials. research about this problem relates to the knowledge of viscoelastic mechanics and interface fracture and combustion. numerical analysis method about interface debond on solid rocket motor is researched in this paper
由於固體火箭發動機的推進劑藥柱是一種粘彈性材料，襯層和絕熱層也具有粘彈性性質，因此其界面脫粘問題實際上是彈性-粘彈性或雙粘彈性各向同性材料界面裂紋問題，對該問題的研究涉及到粘彈性力學、界面斷裂力學和燃燒學等相關學科。 -
Existing calculation methods for burning surface do n ' t well agree with the experimental data with complicated grain. in order to eliminate the error, tests data are used to correct the prefigurative result generally, and it is impossible to calculate burning surface of grain with crack. debond and wtith changing burning rate of propellant
目前現有的固體裝藥燃面演算法，在計算復雜裝藥燃面時仍有較大誤差，為消除這種誤差往往需要用試車結果給予修正；同時在計算含缺陷裝藥燃面和處理裝藥因批次燃速變化時的燃氣加質更是束手無策。 -
The improvement to internal ballistic calculation precision of solid rocket motor ( srm ) is important to capture target of missile. and to accomplish it ' s task. calculation of burning surface of propellant grain is essential to interinal ballistic performance calculation
提高固體火箭發動機內彈道的計算精度對導彈準確捕獲目標、完成任務有著重要的作用，而發動機工作時瞬態燃面計算是內彈道性能計算的基礎。 -
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。 -
4. in order to further improve and raise storage, energy and combustion properties of boron - based fuel - rich solid propellant, while the present slurries of boron - based fuel - rich solid propellant can be cast and cured to form defect - free propellant grain, ap grading and metal fuels changing including variety and addition amount have been adjusted and investigated. the result shows that, after the adjustment, all the slurries can be cast to obtain structural perfect propellant grain which may be used to test various propellant properties
4 、為了使現有含硼推進劑的燃燒等性能進一步提高和改善，同時為了能使現有含硼推進劑藥漿澆鑄后得到結構完整性和均勻性更好的藥柱，在2 、 3研究的基礎上，對ap的級配、低燃點金屬燃燒劑的品種和加入量等進行了較深入的研究，結果表明：這些組分進行調節后的各藥漿的流平性變化均能滿足澆鑄要求，並製成能進行推進劑其它性能測試的小方坯。 -
Specification for propellant grain of torpedo
魚雷固體藥柱規范 -
The composite propellant with mini al content is studied for the special motor propellant grain, which is required to be constant in energy while the internal ballistic property and combustion products change instantly
為滿足瞬間變換內彈道和燃燒產物而能量不變的特殊發動機裝藥要求，設計了微鋁含量復合推進劑配方。 -
Abstract : the composite propellant with mini al content is studied for the special motor propellant grain, which is required to be constant in energy while the internal ballistic property and combustion products change instantly
文摘:為滿足瞬間變換內彈道和燃燒產物而能量不變的特殊發動機裝藥要求，設計了微鋁含量復合推進劑配方。
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