航空模型運動 的英文怎麼說
中文拼音 [hángkōngmóxíngyùndòng]
航空模型運動
英文
r flugmodell ort- 航 : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 運 : Ⅰ動詞1 (物體位置不斷變化) move; revolve 2 (搬運; 運輸) carry; transport 3 (運用) use; wield...
- 航空 : aviation; voyage
- 模型 : 1 (仿製實物) model; pattern 2 (制砂型的工具) mould; pattern3 (模子) model set; mould patter...
- 運動 : 運動[舊時用語] arrange things or get things done through pull
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By means of the orbit dynamics theory and other knowledge, author established mathematical model related to collision forecast, including space object orbit confirming model, space objects relative movement model, dangerous object distinguishing model and space object collision geometry relation model, etc. according to the mathematic model, author calculated the relative distance transformation rule along with time between the spacecraft and dangerous debris and established early warning rule
依據航天動力學理論和其他知識,建立了碰撞預警相關的數學模型,包括空間目標軌道確定數學模型、空間物體相對運動數學模型、危險物體判定準則數學模型和空間物體碰撞幾何關系數學模型等,根據數學模型計算航天器和危險目標的相對距離隨時間變化規律,設定了預警規則。Bell model and four - dimensional company now become a whole have a batch of senior project technical force engaged in the model airplane movement for a long time, have stronger composite developing, working ability
貝爾模型與四維公司躋身於一體,具有一批長期從事航空模型運動的資深工程技術人員,具有較強的復合材料研製、加工生產能力。The thesis summarizes the basic theories of price discrimination, expatiated on the multi - class differential pricing method and dynamic differential pricing theory ; concludes the factors that have impacts on tickets - price, analyses and classfies the factors ; brings forward a canonical method of market segmentation, introduces the process of market segmentation based on the model of gray relative level, discusses the idiographic measure of ticket - price control ; improves the academic achievements of former scholars, puts forward a model of multi - class dynamic differential pricing for the air passenger transport, which is based on the maximum revenue for the airline industry, and gives a approximate arithmetic of the model, then showes the application of the model and its feasibility on increasing airline industry ’ s revenue by 25 models
在對民航定價的國內外研究現狀進行綜述的基礎上,從經濟學角度介紹差別定價的基本理論,闡述民航客運的多等級差別定價理論和動態差別定價理論;對民航票價的影響因素進行分類說明;作為多等級定價的基礎,提出市場細分的標準和方法,用灰色關聯度模型解決航空旅客市場細分問題,並提出票價控制的具體措施;引入一種旅客到達頻率預測的統計方法,以航空公司收益最大化為目標,建立基於多等級定價基礎上的動態差別定價模型,即多等級動態差別定價模型,給出模型的遞歸演算法,通過對動態差別定價模型的運行結果進行分析,建立模型的一種近似模型,並且用25個簡單算例說明模型的用法以及在提高航空公司收益方面的可行性。Indefinite length being changed into definite one and mathematical model being established, minimum flight distance for flying from beijing to detroit is obtained according to the knowledge of stereo - graph, functions, controlling metrology, computer programming and objects ' inter - movement, which can be put into practice
摘要利用把不定長轉化為定長和建立數學模型的方法,藉助空間立體圖形、函數、控制測量學、計算機編程及物體間相互運動等知識,解決了從北京到底特律飛行航線最短,應用於實際中。The forces and moments acting on the bomb are analyzed and the corresponding reference frames and motion model are built. based on disturbance theory, the mathematical model is simplified. what ' s more, taking real flight of the sgb into account, some assumptions are given. on the basis of these assumptions, the motion of the sgb is broke into the motion in vertical plane and the motion in the horizontal plane. dynamic characteristics of the motion in vertical plane is mainly studied
在此基礎上,通過小擾動理論將簡易制導航彈的空間運動數學模型化簡,得到簡易制導航彈的空間擾動運動數學模型。根據簡易制導航彈的實際飛行情況,作出了一些假設條件,將簡易制導航彈的空間擾動運動分解成縱向擾動運動和側向擾動運動,並相應的得到兩個通道的數學模型。Abstract : this paper has analyzed all kinds of perturbation forces affecting spacecraft in space in detail, and got the precise model of orbit calculation of spacecraft, and has set up the precise model of relative movement between two spacecraft in space rendezvous and docking
文摘:本文較詳細地分析了航天器在空間所受的各種攝動力,得出了航天器空間軌道的精確計算模型,進而建立了空間交會對接中二航天器相對運動的精確計算模型。To overcome the shortages of the traditional proportional guidance in attacking maneuvering targets, the paper firstly established the relative motion models for the anti - ship missile and the target in three dimensions, then based on the optimal guidance law for aiming at non maneuvering targets and the sliding - mode control theory, the optimal sliding - mode guidance law in three dimensions, which was more easily - accomplished in engineering, was derived by making the pitch plane and yaw plane superposition
摘要針對傳統比例導引法攻擊機動目標的不足,建立了三維空間中反艦導彈和目標的相對運動模型,在研究反艦導彈攻擊非機動目標的最優制導律基礎上,利用俯仰和偏航兩個平面相疊加的方法,結合滑模控制理論設計了工程上易於實現的三維模型下的反艦導彈最優滑模製導律。The precise calculation model of relative movement between two spacecraft in space rendezvous and docking
空間交會對接中二航天器相對運動的精確計算模型The ar model is used to perform a time - series modeling and forecasting analysis for the spectral analysis data collected from aero - engines
通過運用ar模型對採集的航空發動機滑油光譜數據進行時序建模和預測分析,獲得了滿意的效果。分享友人