攝動解 的英文怎麼說
中文拼音 [shèdòngjiě]
攝動解
英文
perturbed solution-
Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model
第二，討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據，發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大，這有利於對稱不穩定的發生。第三，採用f平面、非靜力平衡、濾聲波模式，討論了中尺度垂直環流非線性攝動分析及演變方程。So the model is more integral and accurate in describing the performance of heat and mass transfer in the adsorbent bed than the traditional mathematical model. 4. pens ( perturbational exponential numerical scheme ) is adopted to ensure the successful solving of the mathematical model and the reliability of results
採用攝動精確數值解格式（ pens ）來求解數學模型中的主要控制方程，並且考慮到控制方程的非定常性，對原pens格式進行了非定常變換，保證了數學模型計算的成功和結果的可靠性。The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method
在第二章里，研究了一維半封閉水域中的非定常風暴潮與天文潮非線性相互作用的問題，用攝動方法求出了具有實際意義的海灣頂部增水水位的一階近似解析表達式，並給出了增水過程曲線。Design method of the electromechanical actuator controller based on the robust mixed h2 / h * control theory is studied, taking advantage of the priority of the linear matrix inequation in solving the problems of the multiobject control, the robust mixed h2 / h * control problem of the electromechanical actuator under the condition of parameter perturbation and external disturbance can be transformed to the solving of the linear matrix inequation
研究了基於魯棒h _ 2 h _混合控制理論的電動舵機的控制器設計方法，利用線性矩陣不等式在多目標綜合控制問題求解方面的優勢，將存在參數攝動及外部擾動時的電動舵機的魯棒h _ 2 h _混合控制問題轉化為線性矩陣不等式問西北工業大學博士學位論文題並進行求解。By use of - perturbation method with spatial discretization, the hydraulic transient system controlled by quasilinear partial differential equation was converted to a time - continuous linear system, so that the inverse problem of hydraulic transients under limited pressure could be sol ed with the optimal control theory for time - continuous systems
採用-攝動法並經過空間離散，將由擬線性偏微分方程式控制制的有壓瞬變流系統轉化為時間連續線性系統，從而使有壓瞬變流限壓控制反問題能應用時間連續系統最優控制理論來求解。By using the asymptotic analysis method and the diagonalization technique, considers the singular perturbation of boundary value problem for system of third order nonlinear integro - differential equation. under appropriate assumptions, the existence of the solution of perturbation problem has been proved and a asymptotic expansion of the solution and the estimation of the corresponding remainder term are geven as well
研究三階非線性積分微分方程組邊值問題的奇攝動.在適當的條件下，利用漸近分析方法和對角化技巧，證得解的存在性並給出解的漸近展開式及其餘項估計The boundary value problems of singular perturbation with boundary layer at turning points are discussed. the asmptotic expansion are constructed. and the uniformly valid asmptolic estimation is obtained
主要討論了在轉點處出現邊界層現象的奇異攝動邊值問題，構造了形式級數解，得到了一致有效的漸近估計Secondly, the effectiveness and limitation of the classical perturbation, such as the method of multiple scales and the poincare - lindstedt method, are discussed in detail through a duffing oscillator with delayed velocity feedback. it is shown that the two perturbation methods are effective only in solving the approximate solution of the first two orders. an ambiguity or paradox will be encountered when they are used to seeking for the third or higher order approximation of solution
其次，以一具有時滯速度反饋的duffing系統為例，研究了經典攝動法如多尺度法， poincar - lindstedt法等在求解時滯微分方程級數解時的適用性和局限性問題，指出利用這些方法只能有效求得系統的前兩階近似解，而在求系統的三次以上近似解時會出現矛盾或二義性。Based on the perturbation riccati transfer matrix method, the calculating program are developed. the program can be used to the perturbation analysis and the sensitivity analysis of the real and complex, the single and repeated eigenvalues and eigenvectors for lateral vibration of rod and beam structures, especially suitable to the perturbation analysis and the sensitivity analysis of eigenvalues and eigenvectors for rotordynamic systems ; 2. the perturbation riccati transfer matrix method was applied to identify the parameters of the rotor for a boiler supply pump, and the accurate dynamic model of the rotor was archived
該程序可以對桿、梁結構橫向彎曲振動的實數、復數的孤立和重頻特徵值問題進行攝動分析和靈敏度分析，特別是適合於轉子動力學系統特徵值和特徵向量問題的攝動分析和靈敏度分析； 2 、用攝動riccati傳遞矩陣方法解決了某電站鍋爐給水泵轉子的參數識別及動力模型修改的問題，並給出了該種型號的給水泵轉子的更準確的力學模型，為進一步的轉子動力學分析與設計奠定了可靠基礎； 3 、給出了攝動理論在相關領域如隨機特徵值分析、隨機振動響應分析、可靠性分析、靈敏度分析、優化設計以及參數識別中的應用公式。We study the singular perturbation of boundary value problem for a class of higher order ordinary differential equation, the solution is shown to exhibit double layer behavior
摘要研究一類高階微分方程兩點邊值問題的奇攝動，揭示了其解分別在兩端點呈現雙重邊界層的性質。However, it is difficult to choose proper perturbation parameter in the process of applying this method. even in present day, there have not a dependable norm to confirm certain parameter and researcher often search it through engineering experience
但選擇攝動參數卻是正則攝動法求解過程中的一個比較困難的問題，現在對于這一問題仍然沒有一個一般的原則，而主要是利用經驗對該問題進行處理。By this method of analysis, researcher can get all of elastic characters without choosing proper perturbation parameter to create perturbation solution. since this method of analysis reduce the experience factors in the process of analysis, the results of it can be more reasonable
採用該方法求解板以及殼體的大撓度問題，研究者無須具體選擇攝動解的攝動參數就能夠得出問題的全部彈性特徵，減少了在攝動過程中的先驗因素，使得求解結果更趨于合理。A general matrix perturbation method for complex modes using singular value decomposition
基於奇異值分解的復模態矩陣攝動法Modal perturbation method for obtaining complex modal characteristics of non - proportional damping systems
求解非比例阻尼體系復模態的實模態攝動法Perturbation method of analysis is a prevalent method to solve nonlinear differential equation in mechanics field
正則攝動法是一種在力學領域求解非線性微分方程的方法。Perturbation solution of the weak - nonlinear partial differential equation with - function
函數的弱非線性偏微分方程的攝動解The singular perturbation solution for a class differential equations with turning points
具有轉向點的一類微分方程的奇異攝動解A comparison of the institutions of social security of great britain, germany and the united states
作大范圍運動彈性結構振動頻率及模態的攝動解Based on the first order perturbing solutions, the thesis obtained the long term relative perturbation of equal semi - major axis formation, which is removed by adjusting semi - major axis of the flying - around satellite
接著，基於一階攝動解，得出了等半長軸繞飛編隊的長期相對攝動規律，並通過調整環繞衛星的半長軸消除了長期相對攝動。One - dimensional perturbation solution of the problem about the unsteady fluid - solid coupling seepage in coal methane unsaturated water flow phase
煤層氣非飽和流階段非穩態流固耦合滲流的一維攝動解析解分享友人