箭程 的英文怎麼說
中文拼音 [jiànchéng]
箭程
英文
bow-shot-
T crowe, et al. effect of spin on the internal ballistics of a solid - propellant motor r. aiaa 66 523
曹泰岳,常顯奇,等.固體火箭發動機燃燒過程理論基礎m .長沙:國防科技大學出版社C t crowe, et al. effect of spin on the internal ballistics of a solid - propellant motor r. aiaa 66 523
曹泰岳,常顯奇,等.固體火箭發動機燃燒過程理論基礎m .長沙:國防科技大學出版社D r greatrix. acceleration - base combustion augmentation modelling for non - cylindrical grain solid rocket motors r. aiaa 95 2876
曹泰岳,常顯奇,等.固體火箭發動機燃燒過程理論基礎m .長沙:國防科技大學出版社A lot of engineering applications are carried out using our proposed method in this paper, such as thermal deformation measurement of a car lamp, analysis of the super low frequency harmonic vibration of a piezoelectric ceramic, dynamic mechanical behavior analysis of the ballistite material and so on
在前面所提出的理論基礎之上,本文對該方法在實際工程中的應用做出了大量的工作。本文利用時間序列法實現了汽車前燈配光鏡的熱變形檢測、壓電陶瓷片的超低頻振動分析以及火箭固體燃料的動態力學特性研究。The barge boards have also been revised, with small fins at their lower edge ( centre arrow ) to improve airflow management under the car
破風板也經過修改,工程師替他在下側加上了一個小鰭(中箭頭處) ,以增進對車底氣流的控制。Her them march the guilds and trades and trainbands with flying colours : coopen, bird fanciers, millwrights, newspaper canvassers, law scriveners, masseurs, vintners, trussmakers, chimney sweeps, lard refiners, tabinet and poplin weavers, farriers, italian warehousemen, church decorators, bootjack manufacturers, undertaken, silk mercers, lapidaries, salesmasters, corkcutters, assessors of fire losses, dyers and cleaners, export bottlers, fellmongers, ticketwriters, heraldic seal engravers, horse repository hands, bullion broken, cricket and archery outfitters, riddlemakers, egg and potato factors, hosiers and glovers, plumbing contractors. after them march gentlemen of the bed chamber black rod, deputy garter gold stick, the master of hone, the lord great chamberlain, the earl marshal, the high constable carrying the sword of state, saint stephen s iron crown, the chalice and bible
其中包括桶匠小鳥商人水磨匠報紙推銷員公證人按摩師葡萄酒商疝帶製造者掃煙囪的,提煉豬油的,織波紋塔夫綢和府綢的,釘馬掌的鐵匠,義大利批發商,教堂裝飾師,製造靴拔子的,殯儀事業經營人綢緞商寶石商推銷員製造軟木塞的火災損失估價員開洗染行的,從事出口用裝瓶業的,毛皮商印名片的,紋章圖章雕刻師屯馬場的工役金銀經紀人板球與射箭用具商製造粗篩子的,雞蛋土豆經銷人經售男襪內衣和針織品商人手套商自來水工程承包人。The schedule was announced on thursday night, and you can bet the rockets ' new brain trust will have trouble getting to sleep
周四晚公布了下賽季賽程,可以肯定的是這段時間火箭的新智囊團將會遇到失眠的困擾。The 3 - d complex flowfield of rocket - missile with wings and empennages induced by the interaction between by base jet and the flow around the body has been numerically simulated. the main work is as follows : first, the gordon - mcbride program was developed to make it more friendly and efficient to the users
本文對帶彈翼/尾翼彈箭的三維噴流繞流復雜流場進行了數值模擬,其主要研究內容有:首先,對gordon - mcbride火箭程序作了改進,使改進后的軟體具有了非常友好的人機交互界面。Long - range fire is similar to the way howitzers proceed
流動火箭彈發射車的長程射擊與榴彈炮的射擊方式類似。Trajectory characteristics of hypersonic waverider missile with rocket extended range
火箭增程乘波外形導彈彈道特性研究Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義Reliability analysis of follower system of long - range multibarrel rocket launcher
遠程多管火箭炮隨動系統的可靠性分析It is very important that the extended range effect is improved farthest by being master of the dynamic delay - time of a rocket - portfire in the air
底排?火箭復合增程彈火箭空中點火延時機構延期時間的控制對于最大限度發揮火箭增程效率有著極其重要的作用。According to the " solid - particle " theoretical model, a theory model of the dynamic burning - velocity of a rocket - portfire in its igniting delay - time cannulation is established, a theory model of the dynamic delay - time is educed. the factors are analyzed, setting position and shape of a igniting delay - time cannulation that affect its igniting delay - time, the theoretical basis is offered to develop the high - level precision rocket - portfire in the air
本文根據「固體粒子」效應理論,建立了點火延期管動態燃速數學模型,導出了點火延期管動態延時控制的理論計算模型,分析了火箭空中點火延期管的安裝位置及其形態對其延期時間的影響,為高精度火箭空中點火具的工程研製提供了理論依據。Second, according to the characteristic of an actual flying process of a launch vehicle, those equations are predigested
2 、根據火箭在實際飛行過程中的特點對其動力學和運動學模型進行了簡化。The next morning, the journey continues - - and it involves rocket propellents too
次日早上,旅程繼續而且還有火箭燃料推動。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Then, the navier - stokes equations for 2 - d axisymmetric compressible turbulent flow were constructed and phoenics was used to simulate the 2 - d axisymmetric compressible turbulent flowfield of rocket jet
其次,建立了二維軸對稱可壓縮湍流流動的平均navier - stokes方程,並利用phoenics軟體對二維軸對稱火箭噴流進行了數值模擬。This course contains labs, assignments, projects, and related resources dealing with aircraft and rocketry design concepts
本課程包括實驗、作業、項目設計和關于航天器和火箭設計概念的相關資料。Visitors can select videodisc programmes which introduce the pioneers of modern rocketry their key discoveries and modern rocketry milestones
觀眾亦可從影碟節目中,回顧現代火箭技術的先驅,他們的重大發現和發展的里程碑。分享友人