隨機位移 的英文怎麼說
中文拼音 [suíjīwèiyí]
隨機位移
英文
stochastic movement-
The test model of random phasic signal and its application in the mobile privacy radio system
隨機相位信號檢測模型及其在移動通信保密系統中的應用This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。If can utilize hall ' s component to measure displacement under the condition of the simple magnetic field, increase the range of measuring ; it inertia little, merit that exposed to make it function in the measurement of vibration and in various kinds of displacement, become a kind of displacement sensor with fine performance. it can solve this difficulty to adopt the feedback servo mechanism
若能在簡單磁場的條件下利用霍爾元件測量位移，增加測量范圍；它慣性小、非接觸的優點將使它在各種位移與振動的測量中發揮作用，成為一種性能優良的位移傳感器。採用反饋隨動機構可解決這個困難。Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures
此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。On basis of fractal theory and the principle of fractional brownian motion, this paper puts emphasis on the following parts : firstly, the determination of fractal non - scale range on calculate fractional dimension is discussed, which adopts method associated artificial cognition with track decision. secondly, primeval data are segmented into blocks to evaluate their sub - fractional dimensions. in this process, the maximal value of sub - fractional dimensions in different directions is prioritized
本文利用分形幾何理論與分形布朗運動原理，重點研究和分析了以下的幾個問題：分形維數計算時無標度區的確定，使用了人工法與軌跡法相結合的方法；對原始數據進行分塊分別計算其子分形維數，考慮了實際地形特徵的方向性，計算得到的子維數為局部的最大坡度方向上的方向維數；改進了傳統的隨機中點移位（ rmd ）內插技術，使用不同的插值比系數進行插值。On this subject, chen wenxiang ' s using feedback servo mechanism to scale - up the measurement range on the shift by hore sensor and chen dongjun ' s study of a kind of hore shift sensor with feedback servo mechanism have achieve the rudimental results. it shows that using self - tracking or servo system to scale - up the measurement range of the hore sensor is reasonable
在這項研究工作上，陳文薌《採用反饋隨動機構擴大霍爾傳感器位移測量范圍》 、陳東軍《一種帶有反饋隨動機構的霍爾位移傳感器研究》已經取得了初步的成果，他們的成果表明採用隨動機構擴大霍爾元件的測量范圍是有效可行的。This system employs a high speed counter unit to get the stretching dispacement error used as the feedback of the fellow motor
應用plc高速計數模塊計算拉伸的位移誤差，並根據該誤差調節跟隨電機的轉速。Thirdly, to improve traditional method ( midpoint displacement algorithm ), various coefficient scales are used in interpolating data. to the end of this paper, a series of experiments on interpolating data are conducted, which indicate that the interpolation improves the precision of results and avoids the creasing problem effectively
利用已有的dem數據進行幾種不同方法的內插計算，計算結果表明改進的隨機中點移位內插法能有效地避免插值點附近明顯的「尖峰現象」 ，且插值精度有了一定的提高。Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device
目前，隨著計算機技術和電子技術的飛速發展， i / o設備介面控制技術領域有了長足進步。其中， pci介面成為主流的微機標準介面，而與操作系統平臺的發展相適應， wdm已成為業界普遍採用的驅動程序模式;同時，在傳感器應用方面，高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者，而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。2. considered the material intensity, girder area, panel thickness and loads as stochastic variables, taylor expansion sfem is adopted to analyze the influence of stochastic variables to the nodal displacement, and the different effects of the different variables to the same nodal displacement are compared. 3
以船舶結構中的材料的強度、梁元截面積、板元厚度和外載荷為隨機變量，採用taylor展開的隨機有限元，分析了隨機變量對船舶結構的節點位移的定量的影響，同時還比較了不同的隨機變量對同一節點位移的不同影響。This paper mainly deals with the subjects below : the problem on fem analysis, general reliability analysis and calculation, and optimization based on the general reliability of the random or fuzzy parameters structure ; and also brings forward a method for getting the fuzzy answers from the fem equation by taking the fuzzy multiplier from a fuzzy variable ; in the fem analysis and structural reliability optimization, the randomcity and fuzziness of the structural physical parameters and the load applied on the structures are all considered
文中對隨機和模糊參數結構在不確定性荷載作用下的結構有限元分析、可靠性分析和基於可靠性的優化設計等問題進行了研究。以桿系結構為對象，提出結構分析的模糊因子方法，其中分別或同時考慮了結構材料的物理參數、構件的幾何尺寸和作用荷載幅值等的隨機性和模糊性；對結構響應（位移、應力）為模糊變量時的廣義可靠度進行了推導。Then a simplified computational modal of damping isolation systems is established for a platform structure, and the relationships between the parameters of isolation layer and structural damping ratio, including their vibration - suppressed effect on the whole structure and the relative displacement of isolation layer are studied, and the simulation analysis under several representative load case of random wave force and earthquake affairs is performed. under random wave force, using complex mode theories, non - classically damp problems considering the interaction between the structure and wave, lying in deepwater, are studied. and the resolution solution of structural response are achieved. the results of calculating and analysing show that adding damping isolation to a jacket is an effective way to reduce vibration for offshore platforms
針對某一典型平臺結構，建立了海洋平臺結構阻尼隔振體系簡化計算模型，進行了波浪荷載工況和地震工況的數值模擬，研究了隔振參數與結構阻尼比的關系以及它們對結構整體和隔振層層間相對位移的控制效果，運用復模態理論研究了位於較深水位的固定式導管架海洋平臺在隨機波浪力作用下考慮結構與波浪相互作用時運動方程中非經典阻尼的解耦問題，獲得了結構響應的解析解。The search space is divided into many small areas, and each area is given a certain pheromone value. according to the state transition rules, the artificial ants move to the next solution which is generated randomly or calculated by particle swarm optimization. local search strategy is also added into psaco so that the search speed and precision is enhanced
該演算法首先將連續對象定義域平均分成許多邊緣相互重疊的小區域，區域的稠密程度決定了演算法解的精度，每個區域賦予一定的信息素值;螞蟻根據狀態轉移規則在隨機生成的可行解與利用微粒群演算法得出的可行解之間選擇下一步要去的位置;引入局部尋優策略，加強近似最優解鄰域內的局部搜索，提高搜索速度和精度。Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice
接著，分三今方向對markowitz模型進行了拓展研究：第一個方向是運用markowitz模型時如何減少計算量，本文利用無風險資產來改進markowitz模型的有效邊界，利用單因子或多因子模型來減少收益率協方差的計算量等等；第二個方向是增加考慮因素，諸如交易費用、資金限制、最小交易單位限制，風險測度和國際組合證券的匯率風險，使markowitz模型更貼近我國的實際；第三個方向是對markowitz模型進行動態拓展研究，提出了將證券收益率看成是隨機序列時的投資決策模型，深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移，並用解析方法和幾何圖形描述了漂移的軌跡和方向。According to the raman selection rule and the pl measurement, it is reasonable to evaluate the quality of galnp / algalnp mqw by analyzing the relative intensity ratio of a1p - lo / to. ( 4 ) a new modified random element isodisplacement ( mrei ) model is set up to calculate the dependence between the long - wavelength optical phonon frequencies and the composition of iii - v - type ab1 - xcx mixed crystals. the second neighbor force constants are still assumed to be a linear variation with the composition, but the two first neighbor force constants can be evaluated to be a negative exponent variation with the composition, using the overlapped repulsive potential of the ion crystal combination
通過實驗我們找到了在這些結構參數上生產gainp algainpmqw的較理想的結果； （ 3 ）首次用喇曼（ raman ）散射方法研究了常溫下的gainp algainp多量子阱結構，除了指認出喇曼光譜中各光學聲子模外，還結合樣品光致發光譜的測量結果，分析發現喇曼光譜中alp - lo to的相對強度比可以在一定程度上評定晶體gainp algainpmqw的生長質量； （ 4 ）在修正的隨機元素等位移? mrei模型的基礎上建立了一個新模型，計算了ab _ （ 1 - x ） c _ x型?族半導體混晶的長波長光學聲子模頻率的組分變化關系。Comparing experimental results with the numerical analytic results using the criterion, it is found that the criterion employs the axial deformations of bracing members as fatigue damage parameters and can be applied to real - time estimation of low - cycle fatigue damage of bracing members under a loading history - dependent random stale
研究結果表明：本文方法以鋼支撐軸向位移為損傷參量，能實時估算在隨機位移荷載下鋼支撐的低周疲勞累積損傷發展，並與試驗結果吻合較好。Sonobuoys are dropped from the aircraft in various geometric patterns in the water. the information picked up is transmitted back to the aircraft
浮標的投放位置是設定的，但隨著在海洋環境中的隨機漂移，其位置不斷更新。This method assumes that each inteferogram has an identical phase shift that can be found out by least - suqares fitting. this algorithm determines any errors of phase shifts deviating from their i ntended values and also suppresses the errors by substituting actual values in subsequent computation. the algorithm can solve the problem of random phase - shifting very accurately, but the algorithm needs a great of iteration number and considerable calculation
In - bokkong等人從同一干涉圖中諸象素相移量相等這一認識出發，提出求解各干涉圖的相移量的方法， in - bokkong的演算法是通過交替求解相位分佈和相移量來進行的一種迭代演算法，這種方法可以解決隨機相移誤差問題，且有很高的精度，但迭代次數較多，計算量較大。A new random phase - shifting correction algorithm is presented in this paper on the basis of five - step phase - shifting. it can directly solve the value of phase - shifting errors without solving phase. meanwhile, the new algorithm can greatly decrease the iteration number and calculation without depressing the measurement accuracy
本文的重點在於提出一種新的隨機相移誤差的校正演算法，在傳統五步相移的基礎上不需要求解相位分佈，通過合理的近似處理可以直接求解相移過程中存在的隨機相移誤差，在保證精度的情況下，能大大減少迭代次數和計算量。分享友人