nonlinear variation 中文意思是什麼
nonlinear variation
解釋
非線性變化-
Nonlinear data exhibit considerable variation.
非線性數據變化較大。 -
Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型 -
Abstract : the phase photograph of a simple pendulum is discussed. two methods of calculating the nonlinear pendulum period is given with the phase orbital properties and the action variation
文摘:對單擺運動相圖作了必要的討論，賦予相圖以直觀的幾何意義，並由單擺相點運動特性以及引入單擺系統作用變量兩種方法求出了單擺系統的運動周期 -
Sm scales the nonlinear variation of tangential modulus during monotonic loadings into a piecewise linear distribution, which can easily be modified to simulate specific characteristics of soil material behavior during cyclic loadings. sm can simulate dynamic stress - strain response of arbitrary cyclic loadings
該模型將單調加載情況下呈非線性變化的切線模量量化成一種呈分段線性分佈的幾何結構，並通過對這種結構加以變換，來描述循環加載情況下材料的特性。 -
Solution of nonlinear wave loads in regular oblique seas. based on strip method, thinking about nonlinear factors such as no straight shipboard on waterline, the instantaneous variation of wet surface shape and slamming effect of ship bottom, the numerical methods of nonlinear fluid force in large amplitude oblique regular seas are discussed
關于斜浪規則波中非線性波浪載荷的計算:本文基於切片理論，考慮到船體非直舷、水下剖面形狀的瞬時變化以及砰擊等非線性因素，討論了大波幅斜浪規則波中非線性流體力的時域計算方法。 -
In order to study the influence of evolvement of permeation character induced by mesoscopic structural characteristics on macroscopic mechanical behavior and fracture mechanism, a nonlinear constitutive equations describing the relationship between damage of rock and seepage is proposed based on mesoscopic damage mechanics and biot seepage mechanics theory and coupling system of flow & solid in rock failure process analysis, f - rfpa2d, is developed to simulate the variation of permeability as well as coupling mechanism between seepage and stress during the initiation, propagation and coalescence of cracks in rock. this study also extends the research field of original rfpa2d
為了分析細觀結構特性變化引起滲透性演化對宏觀力學行為的影響，並進行滲流應力耦合作用下巖石破裂機制的研究，本文基於細觀損傷力學和biot經典滲流力學，建立了巖體損傷非線性本構方程和滲透率關系模型，開發出巖石破裂過程滲流-應力耦合分析系統（ couplingsystemofflow & solidinrockfailureprocessanalysis簡稱f - rfpa2d ） ，拓寬了原有程序rfpa2d的研究領域。 -
Based on the test results and bearing formula for djcm pile composite ground under rigid foundations, it raises the design formula for the bearing capacity of djcm pile composite ground under flexible foundations. secondly, taking material nonlinear especially the glide between pile and soft soil into account, some tentative analysis and numerical analysis have been done by finite element software - ansys. it summarizes some basic regularity of the pile - soil stress ratio load transferring and variation along depth, deformation characters etc.
其次，本文還應用大型有限元分析軟體ansys ，考慮水泥粉噴樁復合地基中樁-土材料的非線性特性，並特別考慮了樁和樁側土之間有相對滑動的實際情況，對柔性基礎下水泥粉噴樁復合地基的力學性狀作了初步的數值模擬分析，總結出柔性基礎下水泥粉噴樁復合地基中樁土應力比、荷載沿深度的傳遞特性和復合地基的變形特性等方面的基本規律。 -
Based on the commonly used strip theory with the extension of taking into account the instantaneous variation of the wetted hull surface during the motion and its effects on the ship hydrodynamic characteristics, this dissertation mainly calculates the ship motions and loads in waves in time domain and elementarily investigates some nonlinear characteristic of ship motion and hydrodynamic coefficient. it is hoped that the research had an engineering value for the predication and evaluation of seakeeping performance in the concept ship design stage
本文基於擴展的切片理論，計入船體運動時濕表面的變化及其對船體流體動力性能的影響，在時域內計算了船舶在波浪中的運動和載荷，並對船舶水動力系數及運動中的一些非線性因素進行了初步的探討，本文的研究對船舶設計階段的耐波性能評估具有工程實用價值。 -
Then according to the essential trial of electric drive system in electric vehicles ( evs ), it is built that the simulation model of induction motor drive system of evs in efficiency optimization control ( eoc ), which suits different motors for simulation and research concerning the running condition of evs. taking nonlinear saturation problem into consideration, simulation study on eoc is proceeded by using an actual motor acting as an example, comparison of eoc with classical u / f control mode is completed at the same time. it is analysed that the variation of losses and their distribution causing by eoc
聯系實際的應用背景，提出了電動車的最大效率控制問題。然後，從電動車電驅動系統的基本特性出發，建立了電動車工況下最大效率控制的感應電機驅動系統模擬模型，通過實例在飽和非線性的條件下進行了最大效率控制的模擬計算。針對感應電機損耗將最大效率控制產生的損耗變化及分佈規律進行了研究，對鐵心損耗的影響進行了分析。 -
Four types of constitutive models are provided by the code : linear elastic model, duncan - chung model, nonlinear elastic model taking stress path into account and modified three - element model. contact element is used to simulate possible sliding between soil and structure. with this code, analysis is made concerning the pore pressure dissipation, lateral deformation of the support, ground settlement, bottom heave, and variation in earth pressure and support forces ; both effects of consolidation and coupled effects of consolidation and creep are considered ; furthermore, different combinations of cohesion, permeability and excavation width are elaborated
該程序採用了更合理的開挖荷載的計算方法，可以引入線彈性、鄧肯張非線彈性、考慮應力路徑的非線性彈性和修正三元件模型等四種本構模型，並在擋墻和土之間設置薄層接觸面單元以模擬土體和墻體在開挖過程中可能產生的滑移。 -
Analysis of ouyanghai thin arch dam considering temperature variation loads with three - dimensional nonlinear finite element method
考慮溫變荷載分析歐陽海薄拱壩的三維非線性有限元法 -
In succession, fractal is imported especially for solving questions about nonlinear and non - stationary of diesel surface vibration signals. a formula with variation has been set to calculate the fractal dimension of the vibration curve
接著，針對柴油機系統的非線性和表面振動信號的非平穩特性，引入分形分析方法，利用變換法計算振動曲線的分維數。 -
2 nonlinear behavior of enterprises " technical innovation behavior system behavior of enterprises " technical innovation behavior means any variation in contrast to circumstances. it includes interior behavior and exterior behavior
二、企業技術創新行為系統的非線性系統行為企業技術創新行為系統的系統行為是企業技術創新行為系統相對于環境發生的各種變化，可分為內部行為和外部行為。 -
Repetitive control is used to reduce voltage distortion under abrupt load variation or nonlinear loads and attain good quality of the voltage waveform ; current loop is designed to quicken the dynamic response and strengthen the ability of the inverter control
重復控制可以抑制逆變電源在負載變化嚴重（空載加到滿載）或者非線性負載條件下的輸出電壓畸變，保證輸出波形的質量；電流環用以改善輸出波形的動態響應特性，提高逆變控制的能力。 -
Because every process are classical time - variation system whit multivariable, long delay time, nonlinear and destabilization and every process has themselves special requirements, considering of their common features the paper write out a three - level intelligence control system which give each process suitable methods
對中藥生產過程各工段控制方法的研究是本文的重點，由於中藥生產的各主要工段都是典型的多變量、大時延、非線性、帶擾動的時變系統，並且中藥生產過程各工段均有其特殊工藝要求。 -
Then a new system of nonlinear equations can be formed from the variation gray of same point in multiple images and the optimum solution of the system can be obtained from gauss - newton and levenberg - marquardt algorithms, so that the normal vector at that point of the surface can be defined
再根據多幅圖像上固定位置一點的灰度值變化列多個非線性方程，以gauss - newton演算法和levenberg - marquardt演算法為基礎求非線性方程組的最優近似解，將選取點的法向量確定下來。 -
A new system of nonlinear equations can be formed from the variation gray of same point in multiple images and the optimum solution of the system can be obtained, so that the normal vector at that point of the surface can be defined. then we can get the surface height at the point by applying composite numerical integration. according to variational calculus and finite difference method, the fitted surface is further iterated and modified, so the reconstruction error can be reduced
根據多幅圖像上固定位置一點灰度值的變化列多個非線性方程，通過求解該非線性方程組，確定出各選取點的法向量；然後通過復化積分確定選取點的高度值，並利用變分和有限差分思想對所得表面進行進一步的迭代和修正，以減小重構誤差。 -
By introducing the nonlinear variation weight and mutational operation into the standard particle swarm algorithm to ensuring the overall convergence and enhance the accuracy of convergence
在標準粒子群演算法中引入非線性變化權重和變異操作來保證全局收斂並提高收斂精度。 -
Based on these models, two kinds of linearized simulink models and a nonlinear simulink model of simple hydro - electricity system are founded and the latter can simulate the variation of power transmission network before and after short - circuit happened
基於這些模型，建立了水電系統線性化simulink模型和具有模擬輸電網路短路前後不同階段網路結構變化功能的非線性simulink模型。 -
As barium titanium is a typical ferroelectrics medium, in which the variation of the polarization intensity with the field strength is nonlinear under the external electric field. the behavior of microwave propagation in batio3 er fluids was also studied when considering the microwave propagation in a direction perpendicular and parallel to the particle chains, respectively. the microwave transmittance in the fluids could be adjusted by the electric field
考慮到batio _ 3是一種非線性介質，在外電場作用下自身介電行為變化的特殊性，對batio _ 3電流變液微波透射行為進行了研究，分別考慮微波傳播方向與電流變液顆粒鏈相垂直和平行的情況，發現batio _ 3電流變液微波透射率亦可由外電場調控。
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