forward differential equation 中文意思是什麼

forward differential equation 解釋
前向微分方程
  • forward : adv 1 向前，前進 （opp backward）。2 【航海】在船頭，向船頭（opp aft）。3 今後，將來。4 出來，出...
  • differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
  • equation : n. 1. 平衡，均衡；平均，相等。2. 【數學】方程式，等式。3. 【天文學】（時）差；均分，等分。4. 【化學】反應式。
  1. In light of the elastic thin plate theory, the author induced equilibrium differential equation of bi - direction cellular slab, which was proved correct through analysis and comparison to result of ansys to with theoretical calculation. through the deflection and bending moment coefficient calculation of bi - direction cellular slab under various boundary conditions, the author brought forward the theory that the deflection of mid - span and bending moment coefficient calculation of mid - span and support of bi - direction cellular slab could be in accordance with solid plates ", which could satisfy the precision of engineering

    本文根據彈性薄板理論，導出了雙向空腹板的平衡微分方程，並通過理論計算和通用有限元程序ansys結果對比，驗證了其正確性；通過對各類邊界條件下雙向空腹板撓度和彎矩系數的計算比較，本文提出：雙向空腹板跨中撓度及跨中、支座彎矩可使用本文空腹板剛度公式查找現有的實心板撓度彎矩系數表進行計算，完全能滿足工程精度要求。
  2. By end of 1998, the nominal value of derivatives transactions had happened in the official exchange within 5 years increased from 7. 7 trillion u. s. dollars to 13. 5 trillion u. s. dollars, meanwhile, the nominal value of derivative securities ( otc ) increased from 8. 7 trillion u. s. dollars to 51 trillion u. s. dollars, then, the nominal value of unliquidated derivatives was total about 64 trillion u. s. dollars, and the academic field also emerged frontier science borrowing for the financial science, physics financial science, financial engineering, etc. 1973, black and scholes put forward the differential equation that any derivative securities prices based on any non - dividend paying stock must be satisfied, that is black - scholes differential equation

    Jamshidian . f在其1989年的文章中推導出零息債券的期權價格。奧托同樣在其1998年的論文中用統計物理學中的路徑積分方法推導出了基於零息債券為基礎的期權定價模型。本文在這些學者研究成果的基礎上，進行了更深層次的研究，在vasicek隨機模型的基礎上，打破上述學者及著名的black - scholes期權定價模型只能求解證券及其衍生產品價格平均值的限制，對零息債券和基於零息債券的期權的價格求解，並推導證券瞬時價格的分佈函數。
  3. Under the most elementary conditions for backward stochastic differential equation introduced by peng s., we put forward and prove a general converse comparison theorem

    摘要在由彭實戈引入的倒向隨機微分方程的最基本的條件下，提出並證明了一個一般的反比較定理。
  4. A general stack equation of mobile robot based on analyzing the motion of planar motion object and the mathematical models of four different kinds of common wheels is developed, accordingly, the mobility of mobile robot is addressed and the forward and inverse solutions to speed for specific configuration driven by differential speed are derived. utilizing the muir and newman convention, the description of the posture transformation matrices between different coordinate frames and the solution for the speed of point located on these frames are introduced. according to posture estimation, a more accurate method, dead reckoning algorithm, is developed for a specified configuration characterized by differential speed motorization, and simulations of this algorithm and other traditional methods are carried out using matlab while traversing a circular path

    本文對兩輪差速驅動移動機器人的運動學及其本體緩沖設計進行了探討，在對平面運動物體運動分析的基礎上結合四種常用車輪的數學模型，推導出了一個通用的移動機器人堆積方程，在此基礎上分析了移動機器人的移動能力、並針對兩輪差速構型推導了速度正解與逆解；使用muir和newman的運動學建模方法，推導了移動機器人上點及連桿坐標系位姿、速度變換關系矩陣及求解方法；在移動機器人位姿識別方法中結合差速驅動構型對航位推演算法進行了分析：推導了一種理論精度較高的航位推算演算法，並使用matlab對其與傳統的推算演算法在跟蹤圓弧軌跡情況下進行了模擬；最後針對本文所研究的機器人給出了一種比較系統、可靠的緩沖結構設計思路，較好地解決了移動機器人作業過程中外界因素及本身設計中引入的各種不確定誤差問題；本論文研究成果已在本實驗室所開發的樣機上得到實現，經過應用與考核證明其中的分析與設計是切實可行的。
  5. The cross - well seismic forward modeling program can be applied to geological model that has different velocities and dips to calculate cross - well seismic synthetics for given sources and receivers by ray tracing the least traveltime or four order differential wave equation

    研製的井間地震正演合成記錄的程序，可用來對不同速度、不同傾角的地質模型，通過最小旅行時的射線追蹤或四階差分聲波波動方程，計算出對于給定震源和給定檢波點的井間地震合成記錄。
  6. To solve it, the differential equation set is transformed by fourier transform and the dynamic differential equation in the form of matrix is educed. the calculation formulas of frequency response function of vehicle vibrating system, acceleration power spectrum density function are put forward

    用分析力學法建立整車動力學模型，推導出以矩陣形式表示的運動微分方程，並通過傅氏變換給出汽車動力學系統的頻率響應函數、加速度功率譜密度函數的計算公式。
  7. In this paper, on the basis of existing tracing method and differential coefficient method, five new methods are put forward, superposing of infinitesimal element - tangent method, differential coefficient - tangent method and equation method, by taking advantage of fast calculating ability of the computer. two - dimensional planar electrostatic field of complicated charged bodies are simulated successfully with these methods. the changing trend of electric field along a certain direction of a set of point charges are also given in this paper

    本文利用計算機快速準確的計算能力及其強大的圖形處理功能，在現有循跡法和微分法的基礎上，提出了微元疊加一切線法、微分一切線法以及方程法方法，成功地模擬了一些復雜帶電體的二維平面靜電場以及平面分佈的點電荷系的電場沿空間某方向的變化趨勢。
  8. A simple and easy operating criterion is put forward in accordance with the relation between positive - sequence component and negative - sequence component of stator current when the motor is in unbalance and single phase broken. based on analyzing the traditional inverse time - lag overloading protection of motors, an inverse time - lag operating equation with accumulating stator current is achieved, according to the differential equation of the heating and cooling while the current flows into the conductor

    在分析電動機傳統的反時限過負荷保護的基礎上，根據導體中流過電流時的發熱、散熱微分方程得到了累加定子電流的反時限過負荷保護動作方程，經簡化后得到累加定子電流的實用的反時限特性遞推公式。
  9. Furthermore, the paper puts forward a successful trial solution to solve the partial differential equation for that necessary conditions

    ）公式，提出了求解該一階條件中的偏微分方程的成功率較高的試探求解法。
  10. A simplification in the foundation of actual dynamics model and the differential equation of aircraft movement are put forward, we have non - dimensionalized the equations. an optimal guidance model for orbit transfers is accomplished by the optimal control theory

    本文圍繞平面情況下飛行器最佳變軌路徑這一主題，在實際力學模型基礎上進行簡化，建立飛行器運動微分方程，並加以無量綱化處理。
  11. In the system of “ direct measurement ” of inertia brake, the braking torque is measured by the right torque sensor of inertia brake. in the thought of special construct of inertia brake, the work braking test data of inertia brake is analyzed, mathematic differential equation is founded, the variable situation of braking torque is analyzed through program calculation, some problem is discovered and suggestion is put forward to the application of test rigs and inertia brake

    在慣性制動器的「直接測量」系統中，用慣性制動器右端的扭矩傳感器來測量制動力矩的，考慮到慣性制動器特有的結構，對慣性制動器工作制動試驗數據進行分析，建立了數學微分方程，通過編程計算分析了制動力矩的變化情況，發現了問題並對試驗臺和慣性制動器的應用提出了改進建議。
  12. This thesis puts forward the differential equation and curvilinear equation of stay cabls, and anayles the relevant, with unique visual angle

    摘要從獨特的視角給出了斜拉索的基本微分方程和曲線方程，並對相關結果進行了分析。
  13. Because the questions of partial differential equations make green function method studied difficultly for student, the variation of parameters formula and ordinary differential equation are put forward. initial value of ordinary differential equation and the boundary value of ordinary differential equation are discussed. green function with time and green function without time are introduced and theirs equations and conditions are calculated

    基於偏微分方程問題造成學生學習green函數方法的困難，我們以常微分方程為切入點，從學生熟悉的參數變動法解非齊次方程出發，討論了非齊次常微分方程的初值問題和邊值問題，引入含時green函數和與時間無關的green函數，得出它們應滿足的方程與條件，分析這些green函數最一般的性質及物理含義，從而驗證了通常green函數方法在數學上的合理性，在此基礎上總結並規范了green函數方法解決問題的基本思想和步驟。
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