trajectory characteristics 中文意思是什麼

trajectory characteristics 解釋
彈道特性
  • trajectory : n (拋射體的)軌道,彈道;流軌;【幾】軌線。 a curved [direct fire flat highangle fire low] traje...
  • characteristics : 產品性能描述
  1. 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
  2. This paper analyzes the characteristics of rainfield and raindrops, gives - formulae to calculate falling velocity of raindrops, studies the frequency of raindrops hitting detonating area of fuzes head on ballistic trajectory based on the theory of exterior ballistics and uses statistical theory to study methods of rainfield simulation

    本文分析了雨場和雨滴的各種特性,給出了雨滴降落速度的計算公式,利用外彈道學的理論研究了引信頭部觸發區在彈道上與雨滴碰撞的頻率,同時還採用統計學手段對雨場模擬的方法進行了研究。
  3. Analyzing to a stand off missile ' s flight characteristics, the as missile trajectory simulation is completed

    在分析了典型防區外導彈飛行特點的基礎上,進行空地導彈彈道模擬。
  4. In addition to pic method, the numerical computation method is used as a compensation for the study of the characteristics of electron beam. the two methods are used separately to attain the trajectory of axially - emitted electron beam in diode region and drift region, and the trajectory of radially - emitted electron beam with axial, azimuthal, as well as compounded axial and azimuthal magnetic field. three two - dimensional codes and two three - dimensional codes have been made out to compute the trajectories

    本文特點之一就是採用粒子模擬和數值計算相結合的方法進行模擬計算,分別得到了軸向發射條件下電子在二極體區域和漂移區的軌跡,徑向發射條件下電子在角向磁場、軸向磁場、角向和軸向復合磁場中電子的運動軌跡,分別編制了三個二維電子軌跡計算程序和兩個三維電子軌跡計算程序,最後將粒子模擬和數值計算得到的結果進行了對比,得到了較為滿意的結果。
  5. Influence of aerodynamic parameters on the trajectory characteristics of finless - aerial - bomb

    氣動參數對無安定器航彈彈道特性的影響
  6. Further more, the solutions of this paper is benefit for the estimation of the characteristics of this new trajectory, such as maximum heating rate, load factor and dynamic pressure during the period of the project demonstration

    研究結果可為新型助推滑翔式飛行器在方案論證階段時的彈道特性分析以及射程、峰值熱流和過載等特徵參數的估算提供依據。
  7. The particles aggregation was simulated using particle - cluster and cluster - cluster aggregation model. several type of floes was reached and its morphological characteristics was analyzed the fractal dimension, density and porosity of floes was studied by changing sticking probabilities, sticking position, particle number, particle concentration, difrusion coefficient and motion trajectory. the parameters by which special floes growth were determined. in the study of morphology, floes of yellow river ' s loess particles was observed by tv - microscope. its morphological characteristics were obtained by image analysis. the effect of fractal dimensions by stirring time strring speed, macromolecule flocculant dosage, flocculant concentration and particle concentration was studie. its rule of change was obtained. on the basis of other studies, the flocculation kinetics and floes structure was studied

    本文應用計算機模擬技術,在二維空間內採用單體凝聚和集團? ?集團凝聚兩種模型對顆粒凝聚過程進行了模擬,得到了多種形態的絮體,並對絮體進行了形態分析,通過改變粘附概率、粘附位置、顆粒數量、顆粒濃度、擴散系數和運動路徑等模擬參數,我們考察了絮體分形維數、密度和孔隙率隨模擬條件變化的影響規律,得到了形成特定形態絮體的控制參數。
  8. As far as the system observation for accuracy evaluation of carrier rocket is concerned, there may exist different types of observed data and priors. heterogeneous information means that the different information describing the different characteristics of the same object. since all of the information is relevant to the same object, the fusion is possible. it is a key problem that how to fuse the heterogeneous information to obtain the better evaluation result. therefore, the different heterogeneous information and data is thoroughly studied, moreover, the mathematical description for information fusion of different parameter priors and data is constructed in this paper. based on their relationship between different parameters, indirect prior and observation data is transformed into prior in impact point observation space, which is fused with original prior by weight determined by maximum entropy rule to obtain the mixed posterior distribution. therefore, the test results can be given by combining posterior distribution and impact error observed data. then its application on evaluating guidance systematic error is elaborated as it applies trajectory tracking data, test value of coefficients of guidance instrumentation systematic error, impact point observation data and prior. especially, the advantage of this method lies in its application in case that guidance instrumentation systematic error may not be computed precisely. finally a detailed example on evaluation of carrier rocket is given to verify the theory

    為充分利用運載火箭觀測中的不同觀測空間和過程的信息來進行精度評估,針對該背景建立了異質先驗融合的數學描述.研究了飛行試驗中不同觀測空間和過程的異質先驗信息和數據,基於不同觀測過程的解析關系,將間接過程的先驗和觀測數據算出的后驗分佈轉換成落點觀測空間上的先驗,與原落點的先驗進行了最大熵加權融合,得到混合后驗分佈,從而結合落點觀測數據給出評定結果.在無法解算出精確的制導工具誤差系數的情況下,這種方法充分利用了彈道跟蹤數據、工具誤差系數的地面測試先驗值、落點先驗及落點數據,穩健性更好,準確性更高
  9. Based on the complex nonlinear system theory and contraposing the nonlinear time - dependent characteristic of complex economic system, this dissertation researches the structure, stability, equilibrium trajectory bifurcation and trajectory catastrophe phenomenon of evolution, the characteristics of the equilibrium catastrophe trajectory which is caused by parameters

    以復雜非線性系統的理論為基礎,圍繞復雜經濟系統的非線性時變特點,對非線性時變系統的結構、穩定性、演化過程中平衡軌道分岔現象和參數引起的軌跡突變現象進行了理論研究,研究了突變軌跡的相關性質。
  10. The crucial technologies of highly - displacement well mainly include torque / friction and wellbore trajectory control tool, and these technologies require rock bit have the following characteristics : having gage protection ability, long axletree lifespan, wear - resisting shirt - tail and head o. d., and high - temperature - resistant sealed system, etc

    大位移井的關鍵技術主要有扭矩摩阻和井眼軌道控制工具,這些技術要求鉆頭具有以下特點:具有良好的保徑能力,軸承壽命長,掌尖和掌背部位耐磨損,密封系統耐高溫等。
  11. Two new algorithms, adaptive model and adaptive interacting multiple model, are presented in this paper with respect to the maneuvering trajectory characteristics of anti - ship cruisle missiles

    針對比例制導的飛航式反艦導彈彈道的特點和機動特徵,提出了跟蹤此類目標的兩種新演算法? ?基於自適應模型的演算法和基於自適應交互多模型的演算法。
  12. The characteristics of the method is that it can modify the guidance coefficients automatically according to the errors between the actual trajectory and the standard trajectory, this is the essential of the standard trajectory guidance. it don " t need any pre - knowledge of the coefficients, this simplifies the problem greatly. following that, the method of predicting the falling site of the instant retuning trajectory is studied

    這一方法的特點是從反饋增益系數對再入段縱程偏差修正的本質出發,利用實際彈道和標準彈道的偏差,通過調節升阻比增量,不斷修正再入段縱程偏差,最終確定反饋增益系數;這一方法的優點是在求解反饋增益系數時,不必依賴先驗知識選取初值,使反饋增益系數的確定更為簡便。
  13. The cause ( s ) and characteristics of vehicle rollover accident are analyzed, the general theory and method are given on reconstruction analysis of this kind of accident. the ‘ three phases ’ theory of vehicle rollover reconstruction analysis is put forward, which are pre - trip phrase, trip phrase and post - trip phrase, adopting relevant theory models, experiential formula and trajectory model in reconstruction analysis. on the basis of certain assumptions, several dynamics and kinematics models describing the vehicle rollover process are established, and the functions between cvs and impact time, impact height or other parameters are gained. then the

    基於以上研究背景和社會需求,本文在國內外現有研究成果的基礎上,對汽車滾翻事故再現分析的一般理論和方法進行研究,擬定應用於實際汽車滾翻事故再現分析的一般流程、演算法和規則,建立了滾翻軌跡模型,開發了滾翻事故再現分析模塊( car - rar ) 。
  14. Automatic identification of axle - center trajectory shape based on invariable - moment characteristics and a new type of correlativity

    超臨界汽輪機調節級葉片固體顆粒沖蝕特性的研究
  15. Design of two propulsion systems is studied - solid rocket ramjet and liquid ramjet. the performance analysis models and design methods are set up for these two kinds of engines. the different characteristics are analyzed and compared, which provide basis for farther trajectory computation and conceptual optimization design

    ( 4 )研究了兩種動力裝置? ?固體火箭沖壓發動機和液體燃料沖壓發動機的設計問題,建立了兩種發動機的性能分析模型和計算方法,對固體火箭沖壓發動機和液體燃料沖壓發動機的特性進行計算分析及比較,為彈道計算及總體優化設計提供依據。
  16. Robots " linear trajectory characteristics are important performance indexes of industrial robots, in which repeatability and stability of robots " movement trajectory synthetically reflect robots " mechanical and electrical performance and the ability of controlling movement trajectory. they are the most important check indexes after robots have been made

    機器人直線軌跡特性是工業機器人的一項重要指標,其中的軌跡重復性和穩定性綜合反映了機器人的機電性能和控制運動軌跡能力,成為工業機器人最重要的一個出廠檢測指標。
  17. Furthermore, this thesis has studied the characteristics of ballistic trajectory data of fuze system, and has developed the program for preconditioning the data in the process of the simulation, which is based on the least square method programming with visual c + + 5. 0 and has enhanced the feasibility of this system. this study is done on account of the fact that the discrete data can not be accepted by the simulation software - working model, which must be turned into successive function

    另外,在利用workingmodel對引信系統進行運動學和動力學模擬時,需要輸入現場試驗測得的數據,而這些離散的試驗數據,必須進行計算和前處理(函數化) ,才可以應用於模擬,本文就此問題深入研究了引信系統的彈道數據的特點,並基於visualc + + 5
  18. According with analyzing the forces acting on a particle, put forward the particle accurate motion trajectory which is determined by the certainty axial and radial force, as well as the uncertainty stochastic forces based on the above factors, the following motion characteristics between the solid and the liquid was analyzed, the following property of solid - liquid exists in all radial, axial and tangential directions

    摘要通過對旋流器內固體顆粒的受力分析,提出固體顆粒精確運動軌跡結構是由確定性的徑向力、軸向力以及不確定性的隨機力所決定,並對固體顆粒存在的隨機因素進行了分析。
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