機理建模 的英文怎麼說
中文拼音 [jīlǐjiànmó]
機理建模
英文
modelling by mechanism-
Firstly, the modeling theory and method of vpm for dynamics are researched. the thoughts of integrated modeling and oriented - object method are absorbed in building the geometric model of visualization function
本文首先研究了動力學虛擬樣機的建模理論與方法，吸收一體化建模的思想，利用面向對象的程序設計方法，完成了實現可視化功能的幾何模型的建模。A mathematical model was proposed to compute the interfacial area on the valve tray
同時根據湍流液體中氣泡變形與破碎的機理，建立了計算浮閥塔板相界面積的理論模型。This paper ’ s constructive land forecast is based on land planning and stat forecast. on the basic of analyse of constructive land actuality and the change mechanism in toksun county, apply four kind of forecast models to analyse the result. choose gm ( 1, 1 ) model and regression model according with the constructive land actuality and the change mechanism in toksun county. and combine the “ 十一 五 ” planning of government and the arrangement of emphases industry item to forecast the demand of constructive land and change current of land use structure in planning period ( 2010 and 2020 ). it adopt reasoning means of acceptability, according to constructive land scale, considering economy rationality 、 advancement and applicability of technic feasibility of constructive condition and sustainability of zoology environment, to analyse the feasibility of constructive land scale. at the last, put forward advice of the constructive land supply
在托克遜縣建設用地現狀和變化機制分析的基礎上，採用4種預測模型進行對比分析，選取符合托克遜縣建設用地變化機理的模型: gm （ 1 ， 1 ）模型和回歸預測，綜合這兩種預測方法，並結合政府「十一五」規劃以及「十一五」期間重點工業項目安排情況，對規劃期（ 2010年、 2020年）各類建設用地需求數量和土地利用結構的變化趨勢進行預測。採用合意度論證方法，綜合考慮建設用地預測規模的經濟合理性、技術的先進性、適用性、建設條件的可能性以及生態環境的可持續性，對建設用地規模進行可行性論證，最後提出建設用地合理供給對策。According to numerical simulation and molten steel solidification mechanism, in the paper, the restrict relationship had been setup between casting speed and molten steel level and average mould tapping section thickness as well as its shell temperature at tapping spout
本文基於數值模擬和鋼液凝固機理，建立起結晶器內鋼液液位和鑄坯拉速對其出鋼口處鋼液截面平均溫度和坯殼溫度的制約關系。Aimed at two important equipments - chlorination reactor and distillation tower, the mechanism modeling is conducted by the material balance and energy balance
本文的另一個重點是針對氯化反應器和精餾塔這兩個重要設備，從物料平衡、能量平衡、化學反應等角度對它們進行了機理建模。The mathematical model of multi - evaporators " liquid level is built with the method of mechanization modeling, and the mathematical model of double evaporators " liquid level is implemented by a computer and data processing modules
利用機理建模法建立了多效蒸發器液位的數學模型，並用計算機和相應數據採集模件對雙效蒸發器液位模型進行了物理實現。The 4th order mathematic model of the load simulator is established and its linear form is obtained by linearizing at operating conditions. also the coefficients of the linear model are calculated and discussed, based on measured characteristics of the proportional valve
然後採用了機理建模的方法建立了系統的四階數學模型，應用工作點近似線性化的方法，對系統進行線性化處理。The paper focus on the main steam pressure control system and introduce some ways to get the systems " mathematics model. bashed on which i present some control methods and basic theory on neural network control. i designs an neural network controller
本文以電廠主汽壓力控制系統為研究對象，介紹了主汽壓力主要的數學模型機理建模方法及系統辨識方法，介紹了幾種控制方式以及神經網路控制基本原理，並在其基礎上設計了神經網路控制器。Genetic algorithm is used to optimize the parameters of pid controller that is used to control the plant lon ( local operating network ) is designed to control vav air - conditioning system. by this means the static pressure control and minimum total supply air volume control are experimented. the paper analyzes the coupling among loops, the whole system ' s stability and energy saving effect under the two control methods
針對目前變風量空調系統的模型都是用機理建模方法建立的情況，本論文用最小二乘法對機組部分進行系統辨識，建立了水閥?送風溫度、變頻風機?靜壓兩個迴路的模型，經驗證比較接近實際系統；採用遺傳演算法對pid控制器的參數進行尋優，尋優結果令人滿意；設計了變風量空調系統的lon控制網路，以此為實現手段，進行了定靜壓控制和最小總送風量控制，並在兩種控制方式下，分析了各個迴路的耦合情況、兩種控制方式的穩定性和節能效果。As a simulation workstation of marine engine - room simulator, the steam system is mainly utilized to accomplish the process simulation of marine boiler and equipments involved. the accurate models of boiler drum water system and steam pressure controlled system were established in accord with the theory of marine boiler
論文首先根據船舶鍋爐的工作原理，通過機理建模的方法，得到鍋爐汽包水位和汽壓調節對象的模型，並通過一定的假設和簡化，得到汽包水位和壓力在具體擾動下的數學模型。In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards
論文第三章針對組成系統的各個模塊進行了機理建模，並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究，主要針對影響系統特性的主要參數變化，動態分析系統的輸出特性，在上下行工況中，分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響；最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。Related topics include first principle based and genetic programming ( gp ) based modeling of refining process, predictive control, predictive inferential control, etc. main contents in the dissertation include : 1. based on the analyses of current status in the research of modeling and control of pulp refining process, some opening problems for developing its computer control system are pointed out
研究領域包括打漿過程的機理建模、基於遺傳編程的打漿過程建模、預測控制、預測推斷控制等。本文主要研究內容： 1在系統綜述了打漿過程機理模型和打漿過程實時控制研究現狀的基礎上，指出了開發打漿過程計算機控制系統所需解決的幾個主要問題。On the basis of analysing the principle of hydro - turbine governing system, this paper adopts the module modeling method, divides hydro - turbine governing system into several subsystems like penstock, hydro - turbine, generator, governor, models them separately by mechanism, thus the whole system math model is established
本文在分析水輪機調節系統原理的基礎上，採用模塊化建模方法，把水輪機調節系統劃分為壓力引水系統、水輪機、發電機、調速器等幾個子系統，分別對其進行了機理建模，從而整合起整個系統的數學模型。The main contribution and research works are as follows : 1. based on mechanism modeling basic state space equation was built. and then by exploiting expert knowledge, operational experience and logical constraints in systems, industrial process hybrid model was built. stability of this model was defined and the method of designing controller based on predictive control was present
結合機理建模和數據建模，利用機理建模的方法建立系統的基本的狀態方程，再利用專家的知識、操作工的經驗、系統本身的邏輯關系，將這二者聯系在一起，建立系統的結合邏輯與規則的混雜模型，討論了此類混雜模型穩定性的定義，並給出了基於預測控制的設計控制器方法以及預測控制系統穩定性條件。So how to transfer scientifically self - balanced test data into top load curve according to its actual working behavior, become the obstacle of its practical application. in accordance with actual forcing behavior and reaction mechanism between pile and soil, the article analyzes the relation between top part and bottom part, load transferring mechanism and difference with other loading way by ansys program. so the reliability of determine bearing capacity by self - balance method has been proved
本文根據自平衡加載方式下樁身的實際受力狀況、樁土間的相互作用機理以及單樁破壞機理，建立了單樁的離散元模型，採用ansys通用分析軟體，選取合理的單元類型、材料特性等，數值分析了基樁在自平衡加載方式下上下樁段的相互關聯、荷載傳遞機理以及與其它加載方式的區別，論證了採用自平衡試樁法測定單樁極限承載力的可行性。Therefore, this paper studies three kindsvalves such like bufferfly valve, brake valve and ball valve, with the numerical simulation method by cfx which is often used to simulate the fluid. by the simulation of three kinds of valves, we can kown dynamic characteristic of them. in this paper, i not only simulate for three kinds of valves, but also analyse cause of flow - noise and give respectively mathematical model of main noise sources in piping system such as pupm and valve
本文通過cfx軟體，用數值模擬的方法，對海水管路系統中常見的三種閥門（蝶閥、閘閥、球閥）流動特性及噪聲進行了模擬分析，闡明閥門噪聲產生的機理，建立了泵和閥門等噪聲源的數學模型，並對管路系統中涉及到的邊界條件做了適當的處理，分析了閥門下游的渦聲。And it is calculated and analyzed the distribution and quantity of slag thermal stress created by boiler load shift. thermal stress quantity can be as big as e / 1000 and is enough to destroy slag structure and to make some drop. it is also concluded that the walltube parameters can only affect on thermal stress of the slag that is near to contact surface and contribute little to slag drop
針對鍋爐變負荷運行時爐膛的自然掉渣現象，分析鍋爐水冷壁渣層中熱應力的產生機理，建立了水冷壁渣層熱應力的計算模型，計算分析了鍋爐大范圍變負荷運行產生的渣層熱應力變化大小和分佈，並分析渣層熱應力的影響因素。In the thesis the low drag - low noise optimization of the vehicle main form design is realized, main accomplishments are as follows. researched the knowledge of drag and flow noise, the parameters of the boundary layer are calculated by the hess - smith method and boundary layer momentum integral method. the calculation of the length of transition zone and change in boundary layer displacement thickness between laminar and turbulent states in the transition is improved, then the drag coefficient and self - noise from the transition zone are calculated as the objective functions of the optimization
主要研究內容和成果如下：對航行器繞流流場進行分析，深入研究了阻力和流噪聲產生機理，建立了阻力系數和自噪聲的評估數值計算模型；採用物面分佈源匯法和邊界層動量積分法對繞流流場的流體動力參數進行計算，改進了轉捩區長度和邊界層位移厚度的計算，應用於航行器頭部駐點自噪聲的計算；最後設計了阻力系數和自噪聲數值計算程序模塊。Because mechanism modeling is very complex and the data for identification modeling ca n ' t often obtain easily, the writer present a thought to establish the mathematical model of transient temperature field of iron bodies. the thought is that using mechanism modeling to set up temperature prediction model for surface of iron bodies and using identification modeling to calculate temperature field of iron bodies
本文針對機理建模的復雜性和辨識建模實驗數據獲得的困難性，提出了使用機理建模和辨識建模相結合的辦法建立加熱爐鋼坯溫度場數學模型思想，即，利用辨識建模的方法（使用動態bp網路建模）建立鋼坯表面溫度預報模型，在此基礎之上使用機理建模的方法（利用有限差分法建模方法）建立溫度場的預報模型。To detect target signal with strong sea clutter, to increase the clutter visibility of sea radar and enable higher resolution and reliable monitoring performance of sea radar, three kinds of key clutter modeling technology for sea radar are studied in detail, which are clutter scattering mechanism modeling, clutter statistics modeling and clutter nonlinear modeling on basis of elaborating sea clutter characteristics
摘要為了能在強烈的海雜波背景下檢測到目標信號，從而提高海面雷達的雜波可見度，使海面雷達具有更高的解析度和可靠的監測性能，在精確的描述海雜波特性的基礎上，詳細研究了雜波散射機理建模、雜波統計建模和雜波非線性建模3種海面雷達雜波建模關鍵技術。分享友人