After making distribute parameter algorithm model of sub - class components , activex controls , which is applied to express the algorithm model , are created by visual c + + in windows operation system 在子類級別上建立了分布參數(shù)的數(shù)學(xué)模型,并在windows平臺上采用vc + +作為開發(fā)工具,完成了以activex控件的形式對這些數(shù)學(xué)模型的封裝。
Linear utility function , non - linear utility junction , and randomly distributed parameter utility function were all specified to find the effect of utility function specification on the updating of model 效用函數(shù)指定除一般常用的線性模式外,另建立旅行服務(wù)水準(zhǔn)變數(shù)為非線性與旅行時間變數(shù)之參數(shù)為常態(tài)分配之效用函數(shù),來探討效用函數(shù)指定對模式更新之影響。
So far , vsc with sm has been deeply studied as an important branch of nonlinear control theory . it has been employed to control discrete - time systems , distributed parameters systems and time - delay systems etc . 目前滑模變結(jié)構(gòu)控制理論已經(jīng)得到了充分的發(fā)展,成為非線性控制理論的一個重要分支,其所研究的對象涉及離散系統(tǒng)、分布參數(shù)系統(tǒng)、滯后系統(tǒng)等。
From the points of view for practical uses , the thesis uses the furnace of high - speed - wire factory of tangshan steel company as object , studies the casual process of nonlinear and distributed parameter with big inertia , pure lag and disturbed by casual factors 本文從工程實(shí)際出發(fā),以唐山鋼鐵公司高線廠加熱爐為研究對象,對受隨機(jī)因素干擾的、具有大慣性、純滯后的非線性分布參量的隨即過程進(jìn)行了研究。
With the viewpoint of dynamic and distributed parameters and parameters qualitatively coupled , computing modules of evaporator , gascooler , internal exchanger are programmed . in addition throttling valve and compressor are programmed . following are the main points of this thesis 本文從制冷系統(tǒng)仿真的角度,用動態(tài)分布參數(shù)及參數(shù)間定量耦合的觀點(diǎn)考察了蒸發(fā)器、氣體冷卻器和回?zé)崞?,編制了各個部件相應(yīng)的計(jì)算程序。
In view of practical use , taking the regenerative furnace of the first plant of high - speed - wire factory of tangshan steel company as object , the thesis studies the casual process of nonlinear and distributed parameter with big inertia , pure lag and casual disturbance 本文從實(shí)際出發(fā),以唐山鋼鐵集團(tuán)有限公司高線廠一車間蓄熱室加熱爐為研究對象,對受隨機(jī)因素干擾的、具有大慣性、純滯后的非線性分布參量的隨機(jī)過程進(jìn)行了研究。
It has some characteristics , such as time - changing , distributing parameter , non - linearity , time - lag . the math model of cement kiln is difficult to describe accurately . neural network ( nn ) has abilities of learning memory , self - organizing and self - adaptation 第二,根據(jù)水泥窯熱工機(jī)制比較復(fù)雜,具有時變、分布參數(shù)、非線性、時滯等特性,運(yùn)用神經(jīng)網(wǎng)絡(luò)的學(xué)習(xí)記憶能力及自組織和自適應(yīng)能力,對水泥窯進(jìn)行了建模分析與研究。
The theoretical analysis and the simulation of the chain structure model indicate that the fluctuations of mass leaving enthalpy close in on that of distributed parameter model with two - order , two - order , and three order precision at the disturbances of heat flow rate , mass entering flow rate , and mass entering enthalpy 理論分析及仿真結(jié)果表明,該模型在熱流量、入口流量和入口焓的擾動條件下,出口焓的變化分別以二階、二階、三階精度逼近分布參數(shù)模型。
Obtained by emtp program and the egm , this paper studies on lightning protection performance on 500kv double circuit transmission line the distributed parameter model of tower is built when analyzing the back stroking lightning protection performance for double circuit line , it can truly reflect the spreading course of lightning current on the tower , furthermore , considering the randomness of working voltage ' s phase when lightning strokes the top tower and supposing the probability of lightning appearing arbitrary phase in a cycle of ac is equal , this paper brings forward the statistical method to calculate the rate of back stroking on double circuit line 本文利用emtp程序、擊距法對500kv同桿雙回線路的耐雷性能進(jìn)行了研究。在分析同桿雙回線路的反擊耐雷性能時,建立了桿塔的分布參數(shù)計(jì)算模型,此模型可以真實(shí)地反映雷電流在桿塔上的傳播過程。并針對雷擊塔頂時,導(dǎo)線運(yùn)行電壓相位角的隨機(jī)性,本文假定雷擊出現(xiàn)于交流一周期的任一角度區(qū)間內(nèi)的概率相等,提出了利用統(tǒng)計(jì)法計(jì)算同桿雙回線路的反擊跳閘率。
The paper is concentrated on the new content - the transmission line theory that the field theory has still not involved . the paper gives a strict prove to the transmission line theory including mutual inductance and approves that the two integral forms of independent equations is not only applicable for lumped parameter circuits , but also for distributed parameter circuits 本論文在已有基礎(chǔ)上研究場論說尚未涉及的新內(nèi)容? ?傳輸線理論,對包含互感的傳輸線理論作嚴(yán)格證明,并證實(shí)積分形式的兩組獨(dú)立方程組不僅適用于集中參數(shù)電路,而且也適用于分布參數(shù)電路。