trajectory computation 中文意思是什麼

trajectory computation 解釋
彈道計算
  • trajectory : n （拋射體的）軌道，彈道；流軌；【幾】軌線。 a curved [direct fire flat highangle fire low] traje...
  • computation : n. 1. 計算，估算。2. 計演算法。3. 計算結果，得數。
  1. In computation of swept volume approximation, an improved technique to generate the swept volume approximation for arbitrary meshes is presented by introducing generator simplification and path resample using frenet moving frames along the discreted sweeping trajectory. other steps, such as a directed distance field computation on a uniform grid based on the hardware accelerated computation technique and iso - surface extraction using marching cubes algorithm, are also included in this algorithm. in addition, the simplification scheme and smoothing technique are applied to the swept volume generated from iso - surface extraction

    本文的主要貢獻在於：在掃描體逼近計算方面，在原有任意多邊形網格模型沿任意路徑運動生成掃描體逼近演算法的基礎上，提出了加入對掃描母體簡化的預處理和用活動標架對掃描路徑進行重采樣等過程，演算法的其它過程還包括：計算掃描體中幾何基元的排列，用硬體加速構造無符號的有向距離場，將無符號距離場轉化為有符號距離場，從有符號有向距離場提取等值面等。
  2. 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。
  3. For a single plunging jet, two optimization models are respectively introduced according to the jet trajectory distance and the depth of scour pool, and the optimal computation of the jet trajectory distance in xiao - wan project demonstrates that these models are reasonable ; 5

    對于單股挑流消能水舌，以挑距和沖坑深度為控制目標，分別首次建立了優化數學模型，並通過對小灣拱壩單孔挑流水舌的計算，說明所提出的數學優化模型是可用的； 5
  4. In the following part, trajectory design and computation are given, including fight scheme and control & navigation laws. through the design and computation, the profile of attack angle, trajectory angle and pitch angle are designed. these works provide theoretical fundamentals for dynamics analysis and practical trajectory design

    第三部分內容是對導彈的彈道進行設計與計算，給出導彈在各段的飛行方案或導引規律。設計出導彈在整個飛行過程中的質點彈道，迎角、彈道傾角和俯仰角等參量在導彈攻擊目標過程中的變化規律，為進一步的質點系彈道和動態分析提供理論基礎。
  5. Firstly, the author, in this essay, has proceeded from the compiling principles of the trajectory report and the actual situations of the field troops, analyzed the defects and shortcomings of the present compilation of the trajectory report, and described systematically the principles and procedures of computing the layer power by the methods of statistical analyses. thereupon, a complete model of computing the layer power has been established and the computation results of the proximate layer power have been found out by simplified process. secondly, the comparison computation has been conducted in accordance with the paired projectiles of 122mm, 152mm and 155mm guns equipped in our army, and test and analyses of the research results have been carried out

    論文中，作者首先從彈道通報的編制原理和部隊的實際使用情況入手，分析其缺陷，進而結合統計分析的一般方法系統地描述了計算層權的原理及過程，建立了計算精確層權、近似層權的完整模型，並通過計算與統計，詳細給出了專用及通用近似層權的計算結果，然後針對我軍裝備的122mm 、 152mm 、 155mm彈丸進行對比計算，對研究結果進行了檢驗與分析；最後，針對計算機氣象通報的特點，論證了對其作進一步改進的可行性與必要性，提出了相應的措施。
  6. Turbojet engine is selected as propulsion system according to the practical situation. the work of this part ranges from design to characteristic analysis. the characteristic curves of engine in various situation are shown, which provides preparation for trajectory computation

    並對渦噴發動機從設計到特性分析做了大量的工作，給出發動機在不同工作狀態下的特性曲線，為進一步研究彈道設計提供了前期的準備工作。
  7. 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。
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