擬周期解 的英文怎麼說
中文拼音 [nǐzhōuqījiě]
擬周期解
英文
quasi-periodic solution-
Analytic solutions of an iterative functional equation x bx
方程特殊擬周期解的構造With the application of fabric simulation technique, textile designation becomes quite easy and effective ; designer will be released from multifarious and trivial labor and have more time or energy to engage in conceiving production ; you can obtain realistic textile pictures and need not to weave out it actually, this will lead to a great many benefits : shorten produce period rapidly, reduce running expense sharply, fasten enterprise ' s reaction to marketing, make convenient for information communication and producers will free from motiveless manufacture. along with wild employment of electronic business, producers can utilize internet to put out newly products, do business and intercommunication
織物模擬技術的應用不僅可以提高紡織產品的設計效率，將設計人員從繁雜的勞動中解放出來、使之能夠將更多的時間和精力投入到產品構思及開發中去，而且由於不必實際生產出樣品就能夠得到具有真實感的設計效果圖，生產周期大大縮短，產品開發成本大幅降低；同時加快了企業對市場的反應速度，企業、供求之間的信息交流更加便捷、高效，消除了生產過程中的盲目性，增加了企業的競爭力。With the computing program, flow around the square cylinder is resolved at first, and the period of laminar flow is simulated successfully. during the period of vortex street ( re = 100 ), the periodically evolutionary phenomena of the flow behind the square cylinder can be seen
利用計算程序，本文首先對方柱繞流流動進行求解，成功模擬了方柱繞流層流階段的流動和渦街階段（ re = 100 ）方柱尾流的周期性變化現象。To understand better the dynamic behavior of pneumatic flap gate of dry docks so as to shorten the design period of the dock gate and cut down the cost of tests, a kinetic simulation model for the pneumatic flap gate system of dry docks has been established by using adams - automatic analysis software for the dynamics of a mechanical system
摘要深入了解干船塢氣控臥倒門系統的動態特性，以便縮短塢門的設計周期，節約試驗費用；運用機械繫統動力學自動分析軟體adams ，建立了干船塢氣控臥倒門系統的動力學模擬模型。The content of each part follow as : in the first chapter, as start point and base of the paper, this part focuses on the basic study of definition characteristic of no, and the existing base of no - e - commerce environment ; in the second one, this part studies the theory base of no comprehensively applying the theories of core competence competent strategy and transaction cost ; chapter three studies the no from the coordination of no, and gives the structure clarification and characteristic of no firstly, at the same time, put forward the concept of virtual enterprise cluster ; based on such conclusion, studies the model of no from life cyc organization level process and value chain, and operational mode ; in chapter four, a theoretical explanation was addressed on the above structure by modeling no with game theory and graphic theory ; in the fifth chapter, on the bases of analysis of no operational risks, coordination mechanism of no was studied by individually modeling the no without core and no with core, and then put forward the solution for coordination mechanism of no ; as an important component of coordination mechanism of no, chapter six explored some basic concept of trust and importantly put forward the way of how to build trust in no, especially investigated the supporting function of valid reputation mechanism of no for the trust building, importantly an operational method on building reputation mechanism and evaluation method in no were given ; the last chapter applied the conclusion of the paper to investigate the famous trade web - sunbu. com analyzed its shortcoming and gave the advices of developing
全文共分為七章，主要內容如下：第一章作為全文的理論出發點和基礎，圍繞網路組織的定義、特徵以及網路組織生存基礎- -電子商務環境等方面對網路組織的基本概念進行了闡述；第二章綜合運用核心能力、競爭戰略和交易費用理論對網路組織產生的理論基礎進行闡述；第三章首先從組織協調的角度對網路組織進行了研究，給出了網路組織的結構，分類和特徵，同時並給出了虛擬企業群簇；然後在此基礎上分別研究了網路組織的生命周期模型、層次模型、過程模型、價值鏈模型，以及運行模式；第四章綜合運用博弈論、圖論的相關知識，通過構建網路組織的模型，對上一章所研究的網路組織結構的形成機理給出了一種理論解釋；第五章在分析網路組織運行風險的基礎上，分別建立無盟主網路組織的博弈論模型和有盟主網路組織的博弈論模型，詳細研究了網路組織的協調機制，然後給出了網路組織協調機制的解決方案；第六章作為網路組織協調機制的重要組成部分，本章在討論了網路組織中建立信任機制的必要性的基礎上，研究了網路組織信任關系的類型，提出了在網路組織中如何建立信任機制。Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm. the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle. the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational. they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time. thus, the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated
文摘:為了保證靜電監控器的導航定位精度，需要了解靜電陀螺的姿態誤差特性，建立相應的誤差方程.本文採用球面三角形原理推導了導航定位誤差與陀螺姿態誤差的關系式.模擬結果表明，由初始定向誤差引起的經度誤差和距離誤差的時間特性是周期變化的；由陀螺漂移引起的經度誤差和距離誤差是隨時間發散的.因此，初始定向誤差和陀螺漂移的影響不能忽略，必須對其進行估計和補償Based on the urgent need that pier protective device primarily designed needed to be tested its crashworthiness by the impact of ship in multi - situation, etc in multi - angle and multi - water, the writer analyzed the critical elements that affect the simulation of the collision between ship and pier protective device, and found the feasible way to deal with the conflict between calculation efficiency and precision. using this method and employing ansys / ls - dyna program, which is the universal nonlinear dynamic analysis software, a head - on collision between ship and pier protective device designed for guanzhou river bridge is simulated and presented, the simulation of time history course of full - scale mini - collision between ship and pier protective device was taken into reality with a spot of elements ( less than 21000 ) and scanty time ( 9 hours on p4 pc )
本文在前人研究的基礎之上，結合船橋碰撞實例，對碰撞計算機模擬模擬的關鍵技術進行了研究，在效率與精度的矛盾中找到平衡，對一艘2000噸級散貨船橫橋向正撞廣東管洲河大橋橋墩防撞鋼套箱這一種工況進行了計算機模擬模擬，實現了以較小的單元和較短的時間模擬碰撞的時間歷程，模擬滿足工程精度要求，解決了目前碰撞模擬計算周期太長的問題，同時模擬模擬得到的結論對該類防撞裝置提供了有價值的參考。In this thesis we study the existence of periodic solutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion equations with nonlocal boundary value conditions, the existence of periodic solutions or periodic quasisolutions and the asymptotic behavior of general time - dependent solutions for periodic reaction - diffusion systems with nonlocal boundary value conditions. the whole thesis is made up of three chapters
本文研究時間變量是周期的反應擴散方程在非局部邊值條件下周期解的存在性及其一般時變解的漸近性態；研究時間變量是周期的反應擴散方程組在非局部邊值條件下周期解或周期擬解的存在性及其一般時變解的漸近性態Abstract : the vibration solution of a massive spring system is presented, the effective mass of a spring is derived. the approximate period of the vibration is given
文摘:給出了彈簧質量不可忽略的彈簧振子系統的振動解，導出了彈簧的有效質量的漸近級數表達式，指出振動呈擬周期性The aircraft ' s longitudinal motion short period poles and long period zeros in right plan e may make the aircraft control system be not got by only using qft. so pole and zero assignment by state feedback is needed to change this circumstances and then qft is used to get the control system. simulink results are given to prove at the system meets the requirements.
飛機縱向運動方程的短周期和長周期的右半平面可能存在零極點對問題，這對飛機控製造成不利影響，直接利用定量反饋理論不能滿足要求。本次論文首先進行短周期狀態反饋極點配置，然後利用定量反饋來解決這個問題。通過模擬分析得到滿意的結果。Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method
本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。At the point of co = g > c, it is the hopf bifurcation that the rotor orbit of shaft centerline is the periodic whirl of small amplitude. the method is suitable for the multi - freedom system
數值求解系統動力學方程，在_ c處，轉子軸心軌跡為極小幅值的周期渦動，此為hopf分岔，分叉后，系統運動為擬周期運動。The method of multiple scales is used to determine the equations of modulation of amplitude and phase. the steady state response can be obtained by solving a couple of algebraic equations, which have been achieved by careful deduction under some conditions. and because of the complexity of the equations, programs are necessary to solve the equations mentioned above, and certain graphs are presented. based on chapter two, in chapter three, the method of multiple scales is introduced to the study of the multiple - dimensional nonlinear stochastic systems under random external excitation
在第二章基礎上，第三章將多尺度法引入到相應的隨機系統的研究中；嚴格推導了系統的約簡方程，用矩方法求出穩態解應滿足的方程，獲得一些結果；並且數值模擬結果與理論推導的結果是一致的；並注意到，與其對應的確定性系統相比較，系統響應從周期解變為近似周期解，系統的相軌線從極限環變為擴大的近似極限環；隨著激勵帶寬的增大，此擴大的近似極限環的寬度將增大。Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research
接著，建立了和研究了二維二速的主幹道模型，該模型模擬了城市交通中一條主幹道，多條支道的交通情況，在幹道與支道的交叉路口設置紅綠燈，車輛在運行中可以有對突發事件發生反應的剎車，在發生堵塞時，路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生，給出了車輛演化的演化方程，並通過計算機模擬，研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化，並分析在各種情況下交通狀況的成因，提出改善交通的有效措施。最後，在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下，將此法推廣到對二維bml模型的模擬上，得到了與用以往方法的研究結果相類似的速度-密度圖線，且車輛從運動相到堵塞相轉變的上下臨界密度是一致的，同時分別給出車輛在處于暢通相和堵塞相時， boltzmann函數在格子上的分佈情況，進一步驗證了此法的可行性。In the air combat simulation, since the system runs in the way of time frame cycle, the flying locus of the weapon, such as missile, changes as a dispersing function, and its movement is much faster than the target ( moving or static ) comparatively, so some errors emerge when the collision test is calculated between the weapon and the target
摘要空戰模擬中，由於模擬系統採用時間幀周期方法調控系統的解算，致使導彈等武器的飛行彈道呈離散函數變化，而導彈等武器的飛行相對于靶標（運動或靜止）是一個快速運動，這樣，武器與靶標的碰撞解算就會引出很多誤差問題。As the traditional navigation system ca n ' t satisfy the requirements of the autonomous underwater vehicles ( auv ) navigation and position. we study a depthometer - doppler - aided strapdown inertial navigation system ( ddsins ) in combination of the developments of periodic navigation technique and some practical problem posed by the mathematical and variation of output data of doppler, furthermore, the digital simulation and semiphysica test are made to verify the validity of the algorithm, the main research work are as follows : design of the strapdown inertial navigation system of auv
由於傳統的導航系統很難滿足遠程水下航行器精確導航、定位的要求，本文在充分考慮使用特殊性的情況下，結合國內、外導航技術發展的實際狀況和發展方向，研究了水下航行器組合導航系統的誤差，重點解決了因多普勒輸出數據周期長和周期時變而給導航計算和濾波器設計帶來的問題，並進行了模擬和實物測試，模擬和實物測試結果表明本文所研究的設計方案合理，可以達到某型水下航行器導航、定位需要的精度。Time maps and the existence of periodic solutions of the second order quasilinear differential equations
時間映射與二階擬線性微分方程周期解的存在性Under some additional conditions the periodic quasi - solutions are exactly true periodic solutions of the system. finally, a model arising from ecology is given to illustrate the obtained results
對一些具體的方程，在某些條件下，周期擬解恰好是方程的周期解，並以一個生物學模型說明了取得結果的意義。In chapter 2, we apply the results of chapter 1 to establish the upper and lower solutions method of the existence of periodic solutions or periodic quasisolutions and the local asymptotic behavior for periodic reaction - diffusion systems with nonlocal boundary value conditions
在第二章，應用第一章的結果建立帶非局部邊值條件的反應擴散方程組周期解或周期擬解的存在性及其局部漸近性態的上、下解方法The delay can affect the existence and stability of solutions as well as leads to the periodic, quasi - periodic and more complex phenomena. so it is more difficult to study the partial differential equations with delay
時滯可影響方程解的存在性、穩定性，可導致周期、擬周期等更為復雜的現象，因而在研究上更加困難。分享友人