無控火箭 的英文怎麼說
中文拼音 [wúkònghuǒjiàn]
無控火箭
英文
free rocket-
As we all known, the ballistic trajectory is a pilotless missile, which loads rocket engine and control system, these will drop the missile to the target along its ballistic
眾所周知，彈道導彈是一種無人駕駛的飛行器，它裝有火箭發動機和控制系統，其目的是把導彈沿一定的彈道送到目標區。Orbiting satellites were better at spying on enemies than wayward reconnaissance drones, and rockets destroyed targets more reliably than temperamental flying bombs did
按軌道運動的衛星比難以駕馭且以監控為主的無人駕駛飛機更好地偵查敵情，而且相對於我行我素的自動導航導彈而言，用火箭來毀滅目標更具可靠性。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In this way, supersonic fluid amplifier especially bistable valve with negative pressure switch is used in the rocket projectile thanks to its advantages of switching rapidly, the ability of low temperature air to control the high temperature gas and no moving parts in high temperature gas
超音速射流雙穩閥，特別是採用負壓切換的超音速射流雙穩閥因其具有切換快速、可用低溫氣流控制高溫燃氣和在高溫燃氣中無活動部件的優點而適用於火箭彈的姿態控制系統中。For example, the rocket projectile meets various kinds of interference while launching and flying, make its precision of hitting reduce greatly
例如無控火箭在發射時和飛行之初易受到各種干擾，使它的命中精度大大降低。Video images showed the rocket soaring into a cloudless sky, with other pictures from mission control showing a video feed of yang inside the capsule
視頻圖像顯示火箭翱翔飛入萬里無雲的天空，來自任務控制中心的其他圖象顯示了楊在太空艙中進食的影像。With each sort of disturbance, given the different type of disturbance, we test the controlled project and non - controlled project separately
在考慮多種干擾因素的情況下，採用蒙特卡羅方法對無控火箭彈和有控火箭彈的落點精度進行統計分析。分享友人