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mathematical programming中文是什么意思

  • 數(shù)理規(guī)劃法
  • 數(shù)學(xué)程序設(shè)計(jì)
  • 數(shù)學(xué)規(guī)劃
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  • Firstly , a simple and practical representing method of the tooth edge tangential vector is applied to replace the traditional differential formula , the simple solving technique of edge contact problem makes the geometric edge contact analysis of the complex curve surface realize . secondly , using numerical searching and mathematical programming method solves the contact directions and loaded contact problem . finally , whole numerical simulation method is provided for loaded tooth contact analysis of high contact ratio spiral bevel gears
    首先以一種簡(jiǎn)單實(shí)用的輪齒邊緣切矢量的數(shù)學(xué)表示方法取代了經(jīng)典的微分表達(dá)式，大大簡(jiǎn)化了幾何邊緣接觸的求解，使復(fù)雜曲面的幾何邊緣接觸分析得以實(shí)現(xiàn)；其次又采用數(shù)值搜索與數(shù)學(xué)規(guī)劃法求解了邊緣接觸的主方向和承載接觸問題，為高重合度弧齒錐齒輪承載嚙合全過程的數(shù)值仿真提供了完整的方法。
  • In upper level optimization , the thickness and geometry factors of composite skins and webs as well as other structural dimensions are taken as design variables . then , considering the behavior constraints and the side constraints , the structural mass is minimized by the mathematical programming technique . in lower level optimization , the mathematical programming technique or the genetic algorithm ( ga ) is used to search the practical stacking sequence of composite skins and webs to realize the given thickness and geometry factors from upper level optimization
    底層優(yōu)化設(shè)西北工業(yè)大學(xué)博士學(xué)位論文計(jì)以復(fù)合材料蒙皮和腹板等層合板各分層的厚度(或鋪層數(shù)) 、鋪層角和鋪層順序?yàn)樵O(shè)計(jì)變量，以層合板的幾何因子與頂層優(yōu)化設(shè)計(jì)給出的最優(yōu)幾何因子之間的誤差最小為目標(biāo)，考慮層合板厚度和制造工藝性約束，采用數(shù)學(xué)規(guī)劃方法或遺傳算法( geneticalgorithm ，簡(jiǎn)稱ga )求出底層最優(yōu)設(shè)計(jì)變量。
  • Based on consider hereinbefore , this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows : ( 1 ) reviewed entirely the origin and evolvement of the concept " sustainable development " , stated and commented the study status in queue on " sustainable development " around national and international range , thorough discussed the science connotation about the concept " sustainable development " ; ( 2 ) looked back and commented across - the aboard some furthest basic concept and proposition related to groundwater resources , put forward self opinions on a few existent mistake points of view and chaos understandings ; ( 3 ) expatiated entirely on the content and meaning of the theory of changeable groundwater resources system , contrast with the traditional methods of groundwater resources calculation and evaluation , combined example to show the application of this theory ; ( 4 ) thorough analyzed the difficult and complexity to forecast the groundwater resources , fully stated the traditional methods of groundwater resources forecasting , pointed out the characteristic and applying condition of these forecasting method , introduced the main ideas and methods of wavelet analysis developed recently , and the matlab software be known as the fifths era computer language , and its accessory wavelet analysis toolbox , applied these methods and tools to analyze the groundwater dynamic curve , adopted the b - j method and morte - carlo method , combined with the theory of changeable groundwater resources system , discussed the new view on the forecast of groundwater resources ; ( 5 ) synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model , combined mathematical programming mathematical statistics random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater , emphasized how to make the model more nicety , more simple , more practicality ; ( 6 ) analyzed the inside condition and outside condition to assure the sustainable and optimum exploi tation of groundwater resources , the inside conditions are the follows : correct resources idea , scientific methods of resources calculation and evaluation , credible forecast methods of resources , exercisable measures of resources management , the outside conditions are the follows : the development idea of high layer , the transform of manage system , the matched policy and rule of law , the adjusted of economy lever , the improve of cultural diathesis , the boosting up of water - saving consciousness and detail measures , the control of population rising , the prevention and cure of water pollute , the renew and rebuild of ecology ; ( 7 ) scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy , earth system science , and philosophy ; lint out the more directions on groundwater resources
    基于以上考慮，論文主要從以下幾方面對(duì)地下水資源可持續(xù)開發(fā)問題進(jìn)行了比較深入的探討：全面回顧了“可持續(xù)發(fā)展”概念的由來與演變，對(duì)國(guó)內(nèi)外“可持續(xù)發(fā)展”的研究現(xiàn)狀進(jìn)行了述評(píng)，并對(duì)“可持續(xù)發(fā)展”概念的科學(xué)內(nèi)涵進(jìn)行了深入探討；對(duì)涉及地下水資源的一些最基本的概念和命題進(jìn)行了全面的回顧和評(píng)述，對(duì)目前仍然存在的一些錯(cuò)誤觀點(diǎn)和混亂認(rèn)識(shí)提出了自己的見解；全面闡述了地下水資源變值系統(tǒng)理論的內(nèi)容和意義，并與傳統(tǒng)的地下水資源計(jì)算評(píng)價(jià)方法進(jìn)行了對(duì)比分析，結(jié)合實(shí)例具體說明了方法的應(yīng)用；深入分析了地下水資源預(yù)測(cè)預(yù)報(bào)工作的極端重要性和復(fù)雜性，對(duì)傳統(tǒng)的地下水資源動(dòng)態(tài)預(yù)測(cè)方法進(jìn)行了全面的評(píng)述，指出了各類預(yù)測(cè)預(yù)報(bào)方法的特點(diǎn)及適用條件，對(duì)最近二十多年剛發(fā)展起來的小波分析技術(shù)的主要思想和方法及其應(yīng)用范圍，以及號(hào)稱第五代計(jì)算機(jī)語言的matlab軟件和附帶的小波分析工具箱進(jìn)行了介紹，并應(yīng)用于地下水動(dòng)態(tài)過程線的分析，采用時(shí)間序列中的b ? j法，蒙特卡羅方法，與地下水資源變值系統(tǒng)理論相結(jié)合，探討了地下水動(dòng)態(tài)資料分析和地下水資源預(yù)測(cè)預(yù)報(bào)的新思路；綜合分析了現(xiàn)今各類地下水管理模型的特點(diǎn)及缺陷，將數(shù)學(xué)規(guī)劃、數(shù)理統(tǒng)計(jì)、隨機(jī)過程等與地下水變值系統(tǒng)理論相結(jié)合進(jìn)行地表水地下水或多水源的聯(lián)合優(yōu)化調(diào)度，使模型更準(zhǔn)確、更實(shí)用；對(duì)保證地下水資源可持續(xù)開發(fā)的內(nèi)部條件和外部條件進(jìn)行了分析，內(nèi)部河海人學(xué)博卜學(xué)位論文前言、摘要、目錄條件主要是正確的資源觀，科學(xué)的資源計(jì)算與評(píng)價(jià)方法，可靠的資源預(yù)測(cè)預(yù)報(bào)技術(shù)，可操作的資源管理措施，外部條件主要是高層發(fā)展思路、管理體制的變革、配套的政策法規(guī)、經(jīng)濟(jì)杠桿的調(diào)節(jié)、人文素質(zhì)的提高、節(jié)水意識(shí)的增強(qiáng)及具體節(jié)水措施、人口增長(zhǎng)的控制、水體污染的防治、生態(tài)的恢復(fù)和重建等;從宇宙科學(xué)、地球系統(tǒng)科學(xué)及哲學(xué)的高度審視地下水資源的可持續(xù)開發(fā);指出了地下水資源可持續(xù)開發(fā)的進(jìn)一步研究方向。
  • The problem has been studied from two sides , firstly , from the viewpoint of applicability , based on the development strategic objectives of the oil company , with the aim to unify the exploration and extraction decisions of the resources in an integrated framework , and integrate the macro economic and technical objectives with micro economic and technical models of an oil well , an integrated non - linear dynamic optimal control model has been constructed , the objective is the benefit maximum of the exploration and extraction of the resources , and the optimal strategies are obtained by changing the problem into a non - linear mathematical programming problem , on the other hand , from the more macro level , based on the analysis of the characteristics of the exploration and extraction activities of oil and gas resources , a conclusion is easily deduced that the procedure is full of randomicity , then discovering procedure of oil deposit is proved to be a poisson process , and the reserves process is a supermartingale process , so the model of exploration discovery rate and the reserves model could be constructed
    本文從兩個(gè)側(cè)面對(duì)此問題進(jìn)行了研究，首先從實(shí)用性出發(fā)，以公司層次的戰(zhàn)略性規(guī)劃目標(biāo)為基礎(chǔ)，將勘探階段與開發(fā)階段的工程技術(shù)及經(jīng)濟(jì)方面的決策整合在一個(gè)模型框架內(nèi)，同時(shí)將宏觀層次的經(jīng)濟(jì)技術(shù)目標(biāo)與單個(gè)油氣井生產(chǎn)的微觀技術(shù)經(jīng)濟(jì)模型相結(jié)合，以油氣資源勘探與開發(fā)的經(jīng)營(yíng)效益最大化為目標(biāo)，建立了一個(gè)非線性確定型綜合動(dòng)態(tài)優(yōu)化模型，通過將原非線性最優(yōu)控制問題轉(zhuǎn)化為一非線性數(shù)學(xué)規(guī)劃問題進(jìn)行了求解。其次從相對(duì)更宏觀的層次上，通過對(duì)油氣資源勘探與開發(fā)的特點(diǎn)分析，認(rèn)為具有很強(qiáng)的隨機(jī)性，證明了勘探活動(dòng)發(fā)現(xiàn)油氣藏的過程為一泊松過程，所發(fā)現(xiàn)的油氣藏儲(chǔ)量為一上鞅過程，在此基礎(chǔ)上，建立了油氣藏勘探發(fā)現(xiàn)率模型及儲(chǔ)量模型，在油氣價(jià)格服從幾何布朗運(yùn)動(dòng)條件下，以油氣開采收益最大化為目標(biāo)，建立了一個(gè)油氣資源勘探與開發(fā)的隨機(jī)最優(yōu)控制模型，采用動(dòng)態(tài)規(guī)劃方法得到了值函數(shù)的hjb方程，并針對(duì)方程的特點(diǎn)，以及方程及其變量所對(duì)應(yīng)的經(jīng)濟(jì)學(xué)意義，對(duì)最優(yōu)策略的求解進(jìn)行了一些討論。
  • Normally , we try to get the dual form of mathematical programming to change primary programming , which is difficult to be solved into its dual programming , which is easily to be solved . after we had got the dual form of two programming , we found their form were very simply because they had only nonnegative and linear constraints
    通常，我們求出規(guī)劃問題的對(duì)偶形式是希望將不易求解的原問題轉(zhuǎn)化為易于求解的對(duì)偶問題，在分別得到這兩類問題的對(duì)偶形式后，發(fā)現(xiàn)其形式簡(jiǎn)單，只帶有非負(fù)約束和線性約束。
  • This paper applicates the mathematical programming and presents the model of containership optimization , and develops computer procedure of containership prestowage . it discusses the principle and implementation method of the optimize model , including following : the process of containership stowage ; introducing of the blocks ; a strategic planning process and a tactical planning process of containership prestowage ; computing principle and method of buoyancy , stability and strengh , besides checking principle of them
    本文引入數(shù)學(xué)規(guī)劃的方法，建立了集裝箱船預(yù)配的優(yōu)化數(shù)學(xué)模型，開發(fā)了集裝箱船預(yù)配計(jì)算程序。文章詳細(xì)介紹了該優(yōu)化模型的原理和實(shí)現(xiàn)方法，主要內(nèi)容包括：集裝箱船的配載過程，裝載單元塊的提出和劃分，集裝箱船戰(zhàn)略配載和戰(zhàn)術(shù)配載，船舶性能計(jì)算與校核。
  • 2 . chapter 3 applied the results obtained in chapter 2 to estimate to solution - set of a parametric mathematical programming . results about stability of a parametric linear programming and estimate to bound of solution - set of a parametric linear programming is established ; under the assumptions in this chapter , results obtained is more sharper than ones obtained in last
    在第3章中，將第2章的結(jié)果應(yīng)用到參數(shù)規(guī)劃的解集的估計(jì)，得到了參數(shù)線性規(guī)劃和參數(shù)二次規(guī)劃的穩(wěn)定性結(jié)果，同時(shí)也給出參數(shù)線性規(guī)劃的解集的界的估計(jì)，在相同的假設(shè)條件下得到的結(jié)果比目前已有的結(jié)果好(即，更sharper ) 。
  • 2 . for the problem with size , stress and displacement constraints , the stress constraint is transformed into movable lower bounds of sizes , the displacement constraint is transformed into an approximate function which explicitly includes design variables by using mohr integral theory . a mathematical programming model of the optimization problem is set up . the dual programming of the model is approached into a quadratic programming model
    2 .對(duì)于尺寸、應(yīng)力和位移約束的問題，將應(yīng)力約束化為動(dòng)態(tài)下限，用單位虛荷載方法將位移約束近似顯式化，構(gòu)造優(yōu)化問題的數(shù)學(xué)規(guī)劃模型，將其對(duì)偶規(guī)劃處理為二次規(guī)劃問題，采用lemke算法進(jìn)行求解，得到滿足尺寸、應(yīng)力和位移約束條件的截面最優(yōu)解。
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