parametric equations 中文意思是什麼
-
A comprehensive introduction to the theory of dynamic stability is given. the concept of parametric resonance is introduced. the system differential equations ( mathieu - hill equations ) for dynamic stability analysis is derived
對動力穩定理論作了全面的介紹，引入了參數共振的概念，並推導了動力穩定問題的微分方程? ? mathieu - hill方程，對floquet理論作了簡單介紹。 -
We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s
根據能量動量守恆關系和clbo的色散方程，詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔長波動以及自發輻射引起的參量光線寬，並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。 -
From three - wave coupling equations, the optimal crystal length, conversion efficiency and parametric light pulse width are computed numerically when clbo is used in picosecond optical parametric amplification. the results present that clbo are suited for optical parametric amplification in short wave band. in order to get higher conversion efficiency, the crystal length should be optimized according to the intensities of pump and signal waves
從三波耦合方程出發，對clbo用於皮秒級光參量放大時，最佳晶體長度、轉換效率和參量光的脈沖寬度進行了理論分析和數值模擬，結果表明clbo晶體適合在短波范圍作光參量放大，為達到高的轉換效率和窄脈寬的信號光輸出，泵浦光和初始入射信號光的強度應根據晶體長度取最優化值。 -
By using the theory of planar dynamics system to a class of coupling nonlinear equations, the existence of uncountably infinite many smooth and non - smooth periodic wave solutions and solitary wave solutions is obtained. under different parametric conditions, various sufficient conditions to gurantee the existence of the above solutions are given
研究了一類廣義耦合非線性方程的行波解分支，得到了該方程的無窮多光滑與非光滑周期波的存在性，並在各種不同的參數條件下，給出了保證該方程上述解以及孤波解存在的充要條件。 -
A solution of linear nonhomogenous differential equations has been found out on the basis of using the idea of parametric variation and an integral of the linear homogenous differential equation ' s parameter solutions
摘要利用參數變動法的思想，通過已知滿足初始條件的齊線性方程（組）含參量特解，給出了非齊線性方程（組）特解的一般積分表示。 -
A detailed model of non - linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non - linearity are considered, is proposed in this paper. based on several numeric examples investigated by the galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived
本文創新地提出了斜拉橋拉索-橋面耦合參數振動模型，推導了索-橋耦合非線性參數振動方程組，聯合galerkin法及數值積分方法，對各種特性的拉索進行了數值求解，得出了影響拉索參數振動的各種因素；提出了斜拉索受軸向端激勵參數振動模型，導出了模型的非線性振動方程，使用諧波平衡法得出了產生參數振動需要的最小激勵幅值、共振時瞬態及穩態的振動幅值及索拉力的變化特性，並用數值積分方法對實際斜拉橋拉索進行了計算，分析了拉索阻尼對參數振動的影響。 -
Firstly, based on research of the asymmetric involute gear cutter and the gearing theories, the universal tooth flank curve equations of asymmetric gear with two pressure angles and the tooth transmission curve are derived by the gear shape nomal method, then the fea model of asymmetric involute gear with main parameters is automatically generated with ansys parametric design language ( apdl )
本文首先建立非對稱漸開線刀具的方程，根據齒形法線法建立非對稱漸開線齒輪的齒廓曲線方程，並利用apdl參數化建模語言建立全參數的非對稱漸開線齒輪有限元模型。討論了非對稱漸開線齒輪的嚙合特性，對非對稱漸開線齒輪傳動特點作了詳細的分析。 -
The problems on parameterization of implicit algebraic surfaces and inversion of parametric surfaces are discussed and the inversion equations for some nurbs surfaces are derived in detail
探討隱式曲面參數化及cad超曲面重構技術研究及其應用參數曲面反演問題，具體導出了一些nurbs曲面的反演方程。 -
The main contributions of this dissertation are summarized as follows : ( 1 ) simply introduce the bistatic sonar system, given the basic conception of the sonar equations of bistatic sonar and the effects of the parametric on it
本文的主要研究內容包括以下幾個方面： 1 ）從雙基地聲納的幾何關系出發，給出了雙基地聲納方程。對聲納方程中各參數的物理意義及影響因素進行了詳細討論。 -
Based on the unproved vof method, parametric studies have been carried out for random wave slamming on open piled wharf by numerical simulation. the governing equations are reynolds time - averaged equations and two equations k - model
為能反映出波浪沖擊過程的湍流特徵，以湍流運動方程? ?雷諾方程，及修正的?模型封閉雷諾方程為控制方程。 -
This paper deduced the involute gear total tooth profile equations of unsymmetric teeth with double pressure angles, proposed the calculation formulas of coordinates and load angle at the upper and lower points of single and double teeth mesh areas, and programmed the relevant parametric programs
摘要推導出雙壓力角非對稱漸開線齒輪系統全齒廓方程，以及在單、雙齒嚙合上、下界點處坐標和載荷角的計算公式，編制了相應的參數化程序。 -
The influence of optical source chirp on femtosecond soliton interaction is studied numerically, and the unequal amplitude method can reduce the interaction. in addition high - order coupled equations governing the evolution of two orthogonal polarization components of the same wave are derived by using multi - dimension derivation expansion method of singular perturbation theory and the dispersion relation. furthermore, a class of optical solitary wave solutions, such as the bright - bright, dark - dark, bright - dark, and combined solitary waves are found under certain parametric conditions
數值研究了源啁啾飛秒孤子間相互作用，提出了抑制該作用的可能方案；用奇異攝動多重尺度導數展開法和色散關系推導了耦合高階非線性薛定諤方程（ chnlse ） ，並用行波變換法得到了一系列孤波解析解，分析了它們在光纖中傳輸的必要條件，也討論了它們的穩定性，為實現飛秒光脈沖在光纖中的無畸變傳輸作理論上的探索。 -
We got the averaged equations of the system in three resonant cases. those are principal parametric resonance and 1 : 1 internal resonance, principal parametric resonance and 1 : 2 internal resonance and principal parametric resonance and 1 : 3 internal resonance
這三種共振情形分別是1 ： 1內共振和主參數共振； 1 ： 2內共振和主參數共振； 1 ： 3內共振和主參數共振。
分享友人