模雙曲方程 的英文怎麼說

中文拼音 [móshuāngqūfāngchéng]
模雙曲方程 英文
normal hyperbolic equation
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 雙 : Ⅰ形容詞1 （兩個） two; twin; both; dual 2 （偶數的） even 3 （加倍的） double; twofold Ⅱ量詞（用...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  1. In order to solve the problems of which the spiral bevel gear of oerlikon type is necessary to out and modify repeatedly, a new method was developed to predict the contact pattern and greatly reduce the cost for manufacturing by means of building a tooth contact analysis model of prolate epicycloids bevel and hypoid gears for oerlikon skm2

    摘要為解決奧利康錐齒輪加工過程中需要反復試切、修正的問題，根據奧利康skm2機床建立了加工延伸外擺線齒錐齒輪和準雙曲面齒輪的齒面接觸分析模型，提出了一種可預測齒面接觸質量、降低設計加工成本的新方法。
  2. In order to solve the problem of engineering roadblock of abnormity wall template design, program alternatives, construction techniques and engineering roadblock, this paper discusses the difficulty of hyperbola template construction on the innovation of traditional simple curve zoom type huge template by combining the three dimensional space hyperbola rinse concrete wall in art performance theater of qingdao art center project construction, provides a method to design and choose heteromorphy component template

    摘要為了解決異形墻體模板設計、方案選擇及施工工藝等技術難題，筆者結合青島市藝術中心工程藝術表演劇場三維空間雙曲線清水砼墻施工，在傳統的單曲線可調式大模板的基礎上進行了創新，很好的解決了雙曲線模板施工的技術難點，為異型構件模板的設計、選擇開拓了又一條思路。
  3. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  4. In the models, the iron core nonlinearly of the traction transformer and the magnetic hysteresis effect without the b - h curve are considered. having tested by digital simulation, the winding parameter has not changed in the state of external fault or magnetizing inrush etc. but the winding parameter has obviously changed in state of inter fault or inter - turn fault. ( 3 ) the rules three phases converted to two phases of traction transformer in electric railways are developed in this paper

    （ 3 ）利用牽引變壓器磁鏈平衡方程，建立了基於系統辨識理論的雙繞組單相接線牽引變壓器、阻抗匹配平衡牽引變壓器及scott （斯科特）接線牽引變壓器的「灰箱」模型，該模型考慮了牽引變壓器鐵芯非線性和磁滯效應，但又不直接反映在模型中，並且無需鐵芯的b - h曲線數據。
  5. Then the author pointed out the disadvantages of this unbalanced tax revenue system and the necessity of its reform from both domestic and international requirements. after investigating the evolving of tax systems in the world and the rising of income tax in developed countries, the author suggested the way to optimizing chinese tax revenue structure is to set up a two - main - body tax system with turnover tax and income tax. the conceived outline is to augment the incom e taxation, to adjust the comparative proportion between turnover tax and income tax, and hence to change the distorted tax system and set up a two - main - body one, in which turnover tax and income tax can function congenially and complementally

    在分析成因、指出弊端和改革必要性后，本文通過對稅制演變的規律總結和發達國家所得稅上升為主體稅種的過程考察，提出優化我國稅種收入結構的方向是建立雙主體稅種結構，總體思路是在穩定流轉稅收入的情況下，增加所得稅的規模及在稅收收入中的比重，以動態的方式改善商品流轉稅和所得稅的相對比例，改變我國稅種收入結構失衡、稅制功能扭曲的現狀，構建一個流轉稅和所得稅結構協調、功能互補的雙主體稅種結構。
  6. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  7. Consequently, to optimize the appearance and structure design of retaining walls, especially to have a deeper understanding of the bearing mechanism of various retaining walls and select city retaining wall type reasonably are of great engineering significances and potential economic effect. based on a thorough analysis of the character and mechanism of city - retaining - wall structures, the design theories, construction technology, new wall types and development tendency are deeply discussed. besides, the characteristics of various types of city retaining wall are discussed, and the usual methods for earth pressure calculation are summarized

    本文在綜合分析目前常用城市擋土結構的特點及其受力特性等基礎上，針對一般擋土墻設計理論、施工技術、新型結構以及未來的發展趨勢進行了深入探討，論述了城市擋土結構的特點，並對常用土壓力理論進行了綜述，介紹了城市擋土墻常見的類型，並介紹了常規的設計理論和方法；通過分析比較，優選出錨桿擋土結構和砌塊式擋土結構，並從錨桿錨固原理出發，結合工程實踐和大量現場試驗、對錨桿的抗拔承載力進行了深入研究，提出了用調整雙曲線模型法計算錨桿抗拔承載力的方法，對土壓力計算方法進行了探討，對其設計計算方法進行了研究。
  8. Telegraph equations, can be looked as cascade connection of two - port network of lumped circuit of transmission line, is a hyperbolic partial differential equations

    傳輸線可以看作集中參數二埠網路的級聯，其數學模型?電報方程是一階雙曲型偏微分方程組。
  9. The study result is listed as follow : the transformation pseudo - elasticity property of shape memory alloys is simulated exactly with the above mentioned method of value calculation. the shape memory alloys re - centring damper presents typical " double flag " hysteretic curve, and the result accords with the theory analysis. the property of above new isolation device is excellent, the seismic response of the super - structure is significantly reduced, and the fully re - centring capacity after earthquake is obtained

    研究結果表明，文中所提的數值求解方法能夠反映形狀記憶合金相變偽彈性的基本特徵；形狀記憶合金自復位阻尼器在循環荷載下呈現出典型的雙旗型滯回曲線，程序的模擬結果與理論分析相吻合；這種新型隔震裝置的性能優良，既可以大大減輕地震對上部結構的影響，同時也具有很好的震后自復位功能。
  10. ( 3 ) fem basic theory of foundation pit excavation stimulation is expounded, numerical model and method of construction simulation are determinated, which includes simplification of two - dimension problem and constitutive model of soil mass i. e. constitutive model of duncan - chang hyperbola model, numerical ways of initial situ stress, stimulation of equal nodal load of foundation pit excavation, nonlinear solutions of basic equations, fem disposing of inner supporting and pre - axial force etc. further fem code of stimulation of foundation pit excavation is compiled

    闡述了基坑開挖模擬的有限元基本理論，確定計算模型及施工模擬方法。包括二維問題的簡化、土體的本構模型，即鄧肯-張雙曲線本構模型、初始地應力場的計算方法、基坑開挖等效結點荷載模擬、基本方程的非線性解法、內支撐及預加軸力的有限元處理等，並編制了模擬基坑開挖的有限元程序。
  11. This paper stated the application of parallel link mechanism in modern machine tools, set up the error analysis as to parallel link mechanism in the virtucal - axis machine tool, derived the double triangular error equations of parallel link mechanicsm in its horizontal posture, analyzed the linearity and non - singularity of the error equations, thus giving the normal splution to the horizontal posture error. the error distribution law is simulated as to the center line in the workplace, and the error distribution curves are drawn as well

    該文對並聯機構在現代機床上的應用作了論述，建立了虛擬軸機床並聯機構的一種誤差分析方法，應用坐標變換原理導出了雙三角並聯機構水平姿態時的誤差方程組；分析了誤差方程組的線性和非奇異性，給出了水平姿態時的位姿誤差正解；對工作空間中心線的誤差分佈規律進行了模擬，繪制了其誤差分佈曲線。
  12. In this paper, we consider mixed finit element methods for the initial - boundary value problems of two order hyperbolic equations and linear integro - differential equations of parabolic type, obtain the error estimates of the discrete schemes for this two kinds of problems. in chapter one, we consider the expanded mixed finite element methods for the followling 2nd order hyperbolic problems this method expands the standard mixed formulation in the sense that three variable are explixitly treated : the scalar unknwon, its gradient and its flux

    本文討論了二階雙曲方程和線性拋物型積分微分方程方程初邊值問題的混合有限元方法，得到了這兩類問題混合有限元離散格式的誤差估計。第一章討論二階雙曲初邊值問題的擴展混合元方法。該方法能同時逼近未知函數、未知函數的梯度和流體的流量，較好的模擬了帶有混合型邊界條件的二階雙曲問題。
  13. Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed

    由於液壓打樁錘液壓系統是一個復雜的非線性系統，本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程，通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解，在matlab6 . 5中進行液壓系統的動態模擬，獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析，為液壓系統的設計和參數優化提供了有益的借鑒。最後，在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后，採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器，設計出了雙缸雙作用液壓打樁錘的電器控制系統。
  14. In this dissertation, the research trends for the problem have been introduced ; the ‘ dim ’ and ‘ point ’ has been strictly defined in mathematics from machine vision and human vision ; the ideal clutter suppression system based on clutter predication and the realization and evaluation of evaluation index has been studied, in succession the clutter suppression technologies have been researched. firstly, the classic nonparametric algorithm has been analyzed in detail and systematically, for it ’ s weakness that it cannot remove the non - stationary clutter ideally, kalman filter algorithm for clutter suppression in 2d image signal has been built. secondly, fast adaptive kalman filter is presented based on fast wide - sense stationary areas partition algorithm : limited combination and division algorithm based on quarti - tree algorithm, new taxis filter route algorithm which can break through the limitation of the necessity of pixel neighborhood of 2d filter and laplace data model with two parameters which is perfectly suitable for the residual image of kalman clutter suppression

    首先分析了經典的非參數法，對於四種具有代表性的核，從前述的三個性能評價方面做了分析和對比，指出了其速度快的優點和對非平穩圖像適應性差的弱點，針對非參數法的弱點，重點研究了對非平穩圖像適應良好的卡爾曼雜波抑制技術:建立了非平穩圖像的類自回歸模型，在此基礎上建立了二維卡爾曼濾波基礎的兩個方程:狀態方程和測量方程;建立了非平穩圖像準平穩區域快速劃分演算法:基於四叉樹法的有限分裂合併演算法;二維空間的基於k排序的濾波路線演算法，突破了空域濾波路線上區域相鄰的限制;在這些研究的基礎上實現了快速卡爾曼估計，實驗驗證了該方法相對逐點卡爾曼估計可以提高運算速度三倍左右;雜波抑制結果表明傳統的高斯性檢驗並不適合卡爾曼估計后的殘余圖像，由此建立了殘余圖像的雙參數拉普拉斯模型，實驗表明其可以完好的吻合殘余圖像的概率密度曲線。
  15. In chapter 1, the thesis studys the following cauthy problem to hyperbolic system with nonlinear relaxation term we prove that for the initial value with bounded c1 norm, there exists a unique global smooth solution for the cauthy problem ( 1 ), ( 2 ) ; in chapter 2, the thesis considers the following hyperbolic system with relaxation term and the sclar conservaton law equation when e is fixed, for a certain class of initial data, in the large time station, the thesis gets a determined lp ( p > 2 ) decay rate between the golbal smooth solutions of system ( 3 ) and the rarefaction waves solution of equation ( 4 )

    在第一章中，研究如下帶非線性鬆弛項的雙曲組的柯西問題證明了，對c ~ 1模有界的初值，柯西問題（ 1 ） ， （ 2 ）存在唯一的整體光滑解。在第二章中，考慮如下帶鬆弛項的雙曲組和單守恆律方程u _ t + f （ u ） _ x 0 ， （ x ， t ） r r ~ + 。 （ 4 ）當固定時，對一類初值，得到方程組（ 3 ）柯西問題的整體光滑解與方程（ 4 ）的稀疏波解間在大時間狀態下的l ~ p （ p 2 ）衰減率。
  16. Upon those theory studies, under the simulation environment of adams software, the 3 - d virtual prototype model was simulated according to actual gorilla robot “ gorobot ”. and in simulation studies, this paper realized biped steady dynamic forward - walking, upstairs and downstairs biped walking, walking mode shifting and rationality of the method for pattern generation was validated in this paper. by the simulation, the curves of joints drive torque and ground reaction force for landing - foot were gained

    基於上述的理論，在模擬軟體adams的環境下對類人猿機器人「 gorobot 」模擬實現了雙足前向穩定動步行，雙足上下臺階，步行方式動態轉換過程，從而驗證了本文的步行樣本生成方法的正確性和合理性;通過模擬得到的關節力矩曲線、著地腳的地面反力曲線等模擬結果驗證了機器人步行和步行方式轉換的能力。
  17. In this paper, brief summary and contrast for the analytical methods of arch dam were conducted, the visualization and parameterization of fem, and its implementation were investigated, and the system based on ansys, for the simulation fem analysis of arch dam was developed. and 3 - d nonlinear fem simulation analysis was then carried out for niutoushan arch dam, which is located in shouning county, fujian province of china

    本文對拱壩的分析方法做了總結對比，研究了有限元分析中的可視化、參數化方法及它們實施技術，開發了基於ansys平臺的拱壩有限元模擬分析系統，並結合實際工程對福建省壽寧縣境內牛頭山水電站雙曲拱壩進行了三維非線性有限元整體穩定模擬分析。
  18. An extended hyperbolic mild - slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. it became a complete wave model when integrated with corresponding physical and imaginary ( open ) boundaries, and can be solved through the improved crank - nicholson or the well known alternating direction implicit ( adi ) difference method, both of which can accelerate the convergent speed, expand limitation of the mathematical method and improve the quality of the solution

    本文基於綜合考慮底摩阻、風能輸入及非線性影響的推廣雙曲型緩坡方程，將其進行轉換，產生一個演變方程，其復振幅控制方程為拋物線性，並採用adi差分格式、改進的crank - nicholson格式及相應的物理和虛擬（開）邊界條件進行求解，以提高數值模擬的適用性、數值計算的穩定性、收斂速度及精度。
  19. Aiming at drawbacks that environment simulate test laboratory ( estl ) ' s control precision is being dropped, the system digital simulation, the system characteristic analysis is proceeded ; basing on it, intelligence pid control processor, integral desaturation pid control processor, leading adjust control processor ( leading adjust of point of inflection of curve ) is planned, double loop control processors of low temperature system is consummated, so, the new control scheme and control program is formulated ; moreover through control program " simulate debugging and environment simulate test, 18 experimental curves and 19 experimental items is fulfilled totally. it proved that estl ' s control system and control program are successful. experimental result makes it known that the new control plan solves the problem of low control precision

    本論文針對環模室原控制系統存在的控制精度下降等問題，進行了系統模擬及環境模擬系統特性分析，在此基礎上，設計了智能pid控制器、抗積分飽和的控制器、預估補償控制器、完善了低溫系統的雙迴路控制，制定了新的控制方案和控製程序組態，並對其控製程序進行模擬調試及結合實際試驗對其控制系統進行驗證；共計完成了18條曲線， 19個項目的試驗，對其控制系統及控製程序進行了充分的考驗。
分享友人
分享到 Line

分享到臉書