傳統優選法 的英文怎麼說

中文拼音 [zhuàntǒngyōuxuǎn]
傳統優選法 英文
classical optimization
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  1. In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements

    本文以雙橫臂獨立懸架的轉向動機構作為研究對象,擇對斷開點和節臂球銷的位置進行化設計,在此基礎上建立了基於多體系動力學的導向機構和轉向動機構的數學模型,運用該學科的運動學分析方研究機構的運動規律,編制了通用化設計軟體。由於考慮了更多的空間因素,取消許多影響準確性的假設,因此建立的數學模型與的方相比更能反映實際運動規律,得到的化結果也更加精確實用。此外,本文還針對導向機構進行受力分析,在建立該機構的空間動力學模型后,運用多體動力學中的動力學分析方研究各個桿件的受力,計算出上下球鉸的約束反力,並開發出了相應的通用計算程序。
  2. The method proposed in this thesis do well in solving the problems of multi - damping - ratio - spectra simulation. it is convenient to obtain the pareto optimal solution set of the multi - object question by using implicit parallel genetic algorithms and the method can meet the practical needs for simulating ground motions coinciding with multi - damping - ratio - spectra in seismic design. the crossing rate and variance rate are important parameters of genetic algorithms which affect the rate of convergence, the adapting rate of cross and variation in this paper can auto - adapt and according to stand or fall of current sample, it assures the sample approach to the pareto optimal solution set in fast convergent speed

    較好地解決多阻尼比反應譜擬合問題;本文方通過一次運行就能獲得一組具有集系特性的地震動,在擬合多阻尼比反應譜的人造地震波集系的模擬方面有所不能比擬的勢,產生的人造波或人造波集系可滿足工程抗震設計需要;在遺演算中,交叉概率和變異概率是影響收斂速度的重要參數,本文採用的改進自適應交叉概率和變異概率,可以根據當前樣本的好壞程度來自動地擇適當的交叉概率和變異概率,以保證演算始終以較好的速度向pareto最解集逼近。
  3. According to the history and contemporary condition of the world wine industry and the character of chinese grape wine industry, guofeng ' s marketing environment and the company ' s inner superior and inferior situation were analyzed. the questions of guofeng ' s marketing were found and listed. then the paper put forward the marketing strategy for guofeng company according to 4ps, 4cs, 4rs and integration marketing theory : to reselect gansu middle market as its target market and relocate its marketing position by its unique location and green products concept, to richen its middle product - line, to strengthen wine culture promotion, and to build sale place

    論文主要運用現代營銷理論,採取市場調查、文獻查閱、 swot分析等研究方,結合世界葡萄酒行業發展的趨勢和中國葡萄酒消費市場的特徵,分析了國風干紅的市場營銷環境、公司內部的、劣勢資源條件及其營銷現狀和存在的問題,運用的4ps營銷理論並結合4cs 、 4rs營銷理論以及整合營銷理論,提出國風公司應擇甘肅葡萄酒中端市場為其目標市場,以獨特的產地勢和綠色產品概念為國風品牌定位,向市場提供高品質中價位的產品。
  4. The molecular library technology has special values compared with conventional techniques for serodiagnostic screening of antigens, especially when the pathogens are difficult to culture artificially or the specific antigen purification is hard

    特別是當病原體不易人工培養或難于制備純化抗原時,這種技術較診斷抗原篩具有明顯的勢。
  5. Utilising dissolved gases analysis, a new insulation fault diagnosis method for power transformers is proposed. this method is based on the group grey relational grade analysis method. first, according to the fault type and grey reference sequence structure, some typical fault samples are divided into several sets of grey reference sequences. these sets are structured as one grey reference sequence group. secondly, according to a new calculation method of the grey relational coefficient, the individual relational coefficient and grade are computed. then according to the given calculation method for the group grey relation grade, the group grey relational grade is computed and the group grey relational grade matrix is structured. finally, according to the relational sequence, the insulation fault is identified for power transformers. the results of a large quantity of instant analyses show that the proposed method has higher diagnosis accuracy and reliability than the three - ratio method and the traditional grey relational method. it has good classified diagnosis ability and reliability

    基於變壓器油中溶解氣體分析,提出了一種基於群灰色關聯度分析的變壓器絕緣故障診斷新方.首先根據故障類型與灰色參考序列構造,擇變壓器典型故障樣本構造多組參考序列,這些參考序列組構成一個灰色參考序列群.其次根據給出的新的關聯系數計算方,計算個體關聯系數和關聯度.然後根據給出的群灰色關聯度計算方,計算群灰色關聯度和構造群灰色關聯度矩陣.最後根據關聯序識別變壓器絕緣故障診斷.通過大量變壓器絕緣故障診斷實例分析,所提方診斷準確性與可靠性於三比值的灰色關聯分析方,具有較好的分類診斷能力和可靠性
  6. At the same time the author emphasizes that by no means can the teaching mode violate the usual principles, such as syllabus and curriculum standard, teaching contents, step - by - step instruction, and suiting the instruction to the students " level. simultaneously the focal points are also the new ideas that the author put forward in the dissertation since they constitute the crux in improving the students " reading comprehension ability through the combination of discourse analysis theories and classroom english teaching. after presenting and analyzing the results and data, the author argues that the adopted theories prove to be fruitful in enhancing students " reading comprehension ability, and states their far - reaching

    實驗完成後通過分析數據和結果,筆者得出令人信服的結論,即語篇分析理論對高中閱讀教學具有重要的指導和啟發意義,以它們為指導的教學模式明顯的閱讀教學方,並提出了實驗對今後閱讀教學的幾點啟示:加強對語篇宏觀結構的分析、注重知識面的拓展,掌握各種常見的閱讀技巧和策略、重視銜接手段的教學和訓練以及慎重材和科學設問。
  7. It is very important to estimate the basic parameters in helicopter preliminary design. neural network ( nn ) has the advantages in estimating accuracy and generalization over traditional methods. however, there are some difficulties in using nn, e. g., how to select a proper network structure and the number of hidden layers. in this paper, structure and connection weight of a three - layer nn are optimized by genetic algorithm, and the optimized network is applied to helicopter sizing. the proposed method can not only give an optimal nn structure and connection weight, but also reduce the prediction error and has the capability of self - learning when the latest data are available. furthermore, this method can be easily applied to helicopter design systems

    在直升機初步設計階段估算其基本參數是很重要的.神經網路的通用性和精度比的估算方有更多的勢,但是在應用神經網路時存在如何擇合適的網路結構和隱層節點數目等一些困難.應用遺演算化三層神經網路結構和連接權重,並將化得到的網路應用於直升機參數擇中.該方不但可以給出一個最的神經網路結構和連接權重,而且降低了估算誤差,具有及時應用最新數據學習的能力.此外,該方易於在直升機設計系中得到應用
  8. Rapid prototyping technology changed the traditional pattern of product design, which could offer product sample for the designer, reduced design cycle and quicken the schedule of new product design, and it gave the decision - makers visual feeling. ; rp technology provided kinds of molds including resin - boncled mold laminate mold, investment mold and lost foam casting mold and so on for sand casting investment casting and cavityless casting, it could also use direct shell production casting to make pattern dies metal dies die - casting dies injection dies directly, and it could even produce casting products in small scales. the applications of fdm technology in plaster precision casting and the rapid casting technology based on sls technology were introduced, the organic combination between rapid prototyping tecnnology and foundry process, which initiated a new period of rapid manufacturing metal parts, by using advanced new technology alternated traditional foundry industry to make it looked brand - new, thus, the competition of foundry industry would be improved ; rapid prototyping technology offered a rapid economical feasible technical method, common processes of using rapid prototyping technology to produce dies were discussed, in the paper it explored that. the problem of combining rapid prototyping technology with electric arc metal - spraying technology to make metal dies and technics in dies manufacturing of combining rapid prototyping technology with precision casting, rapid tooling based on rapid prototyping, integrated advanced new technology and tradition technology of rapid prototyping manufacture, each superiority were exerted, rapid prototyping technology had been an efficiency measure to rapid update products and develop new product, and to middle -

    快速成型技術改變了的產品開發模式,可以為設計者提供產品樣件,縮短設計周期,加快新產品的開發進度,為決策者提供直觀性;快速成型技術迅速提供砂型鑄造、熔模鑄造、實型鑄造用的各種模樣,包括樹脂模、層壓模、熔模和消失模等,還可採用直接制殼鑄造直接製造熔模鑄造用的壓型、金屬型、壓鑄型、注塑模,甚至直接製造小批量鑄件,介紹了熔積成型技術在石膏型精密鑄造上的應用和基於擇性激光燒結技術的快速鑄造技術,快速成型技術與鑄造工藝的有機結合,開創了快速製造金屬零件的新階段,對用高新技術改造的鑄造工業,使其面貌煥然一新,增強鑄造行業的競爭能力;快速成型技術為母模的製造提供了一條快速、經濟、可行的技術途徑,討論了利用快速成型技術製造模具的一般工藝方,探討了將快速成型技術與金屬電弧噴鍍技術結合起來快速製造金屬模具問題,以及快速成型技術與精密鑄造技術相結合的模具製造工藝,基於快速成型製造的快速模具技術,集成了快速成型製造高新技術和技術,發揮各自勢,已成為產品快速更新換代和新產品開發及中、小批量生產的有效手段之一。
  9. Secondly, introducing the image analyzing technology with reference to the disadvantages of the traditional ferr - graph analysis technology, and with the combination of characteristic parameter optimizing filtration so as to raise a description method of debris micro - morphologic character. thirdly, with the application of mode recognition method, completing the process of debris auto - recognition based on the collected information of the debris configuration characteristics ; and conducting the diagnosis on the aero - engine wear faults according to the theory of particle tribology. fourthly, introducing information fusion technology to solve the problem that a single method can not collect enough fault premonitory information to conduct the wear fault diagnosis, hence to conduct the research and exploration in the field of comprehensive diagnosis on the aero - engine ' s multi - fault premonitory information

    本文的研究工作主要包括以下五個部分:首先,介紹航空發動機常見的磨損故障類型,研究磨損故障的失效機理,分析磨粒的產生機理、分類以及形態特徵:其次,針對鐵譜分析技術的缺點,引入圖像分析技術,再結合特徵參數化篩,形成基於圖像的磨粒顯微形態學特徵描述方:然後,基於提取到的磨粒形態特徵信息,應用模式識別方完成磨粒自動識別,並根據顆粒摩擦學的基本原理進行航空發動機磨損故障的診斷與定位:再后,鑒于單一方不能提取足夠的故障徵兆信息進行磨損故障診斷,本文引入信息融合技術,開展航空發動機多故障徵兆信息綜合診斷方的研究與探索;最後,基於航空發動機滑油光譜分析與鐵譜分析數據,應用時序模型、灰色模型以及組合模型進行磨損故障的預測方研究。
  10. The investment decisive - making for harbor engineering is a very complicated process, and it comes down to many fuzzy factors. compared with the traditional investment techniques, the technique of fuzzy optimization can more effectively quantify various kinds of fuzzy factors that influence analysis and decision - making. the analytic results can be more faithful to reality and enhance scientific and accurate decision - making

    港口工程的投資決策過程非常復雜,其中涉及到許多模糊性的因素,而模糊的投資決策方相比能定量地處理影響分析和決策的種種模糊因素,使分析的結果更加符合客觀實際,從而提高決策的科學性和準確性。
  11. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺演算的直流雙閉環調速系參數化設計方.根據工程技術的要求,用速度超調量和過渡時間作為參數化性能指標.將該指標用模糊隸屬度函數歸一化,再加權平均形成系化模型的目標函數.採用計算機數值計算方,通過模擬獲得系對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍,以速度調節器和電流調節器的參數為染色體中的基因,通過遺演算在搜索范圍中化這些基因,獲得化解.實驗結果表明,所設計的參數能使系性能指標有顯著提高
  12. It is difficult to be settled by classical theories because of fixed quality and quantity. this thesis bases on the improvement of traditional way, overcomes its i ack experience, takes the more advanced fuzzy decision - making and optimal selection theory, researches into the established model and gets the result that it ' s best to set pangtoupao storage and detention flood area on the left side of menjiang river by comparing the four schemes and ten objectives of fixed quality and quantity. the result holds identical views with the result of usual economic evaluation. so it ' s the first time using fuzzy decision - making and optimal selection theory to resolve the important and pragmatic problem comprehensively and scientifically

    本文在總結用的方研究經驗與不足的基礎上,採用目前較先進的模糊化理論及建立起的模型進行蓄滯洪區設置及規模研究,通過對嫩江四個蓄滯洪區方案, 10個定性定量目標的化比,得出在嫩江左岸設置胖頭泡蓄滯洪區最,其結果與採用常用經濟評價方所得結果基本一致,從而第一次用模糊化理論較全面科學地解決松花江流域防洪工程中確定蓄滯洪區規模這一重大實際問題。
  13. This paper exhausts fully adjustable factor which could amend the dynamic function in fuzzy control system, and that traditional algorithms select factors with intercession is easy to get a partial solution, so this paper presents a new method to select factors based on genetic algorithm. this method has a large range over covered the solutions which could benefit to search the best solutions. it has great character and advantage

    本文充分闡述了可調整因子在模糊控制中能夠改善了系的動態性能,並根據化演算取控制因子時是從單個初始值迭代求取最解的、很容易陷入局部最解這一問題,提出了一種基於遺演算的可調整因子的取方,這種方覆蓋面比較大,有利於全局擇
  14. Secondly, according to the requirement of the parametric sensitivity analysis, the method based on orthogonal experiment is chosen to cope with the difficulty of obtaining the sensitivity analysis through the partial derivative of explicit function. and it also overcomes the traditional single factor cyclical method ' s shortcoming ? impossibility to analysis interactional factors. furthermore, some significative conclusions are acquired from the sensitivity analysis

    其次根據軌跡化問題靈敏度分析的需要,取基於正交試驗的靈敏度分析方,解決了軌跡化問題沒有顯函數,無通過求其偏導數獲得靈敏度的難點,同時克服了的單因素輪換對該類問題進行靈敏度分析帶來的弊端? ?無對有相互作用的因素進行靈敏度分析,並通過對軌跡化問題進行靈敏度分析,得出了一些有益的結論。
  15. The paper puts forward the clustering algorithm includes : clustering based on grid and iterative, enhanced clustering algorithm base on density and k - medoids, enhanced k - means algorithm ( optimize chooseing consult _ points in iterative process ), enhanced clustering algorithm base on distance. they can overcome many limitations ( some traditional algorithms terminate in local optimization. many results of cluster are roundness, too many times in partition iterative process ), which are related to the static architecture of traditional model

    聚類演算的基礎上,結合我們科學數據挖掘的應用對象?分子動力學數據,提出了迭代網格聚類演算, k -平均和基於密度結合的聚類演算,迭代過程中擇中心點的k -平均方,以及改進型的基於距離的聚類演算等模式識別方,能夠解決演算帶來的諸多問題(比如一些的聚類演算常常收斂于局部最,發現都模式都趨近於球形,劃分方中迭代次數過多帶來的效率問題) 。
  16. Be ~ will be helpan to loow the means to - ve the schmes. aotwh to. ' proechon theom ", we proed the schein m is no dea efficien on the piddution forer, then ge the new dw wt is theforal efficien and scale efficien at the same time

    dea評價模型進行適當的改進,採用一種新的決策單元排序方,引入「理想決策單元」 、 「效率評價指數」等概念,出綜合效益最佳方案,為科學決策提供參考依據。
  17. Based on the analysis of hydrogeological conditions in the study area, calculation and chose of the hydrogeological parameters was performed by ga, and three methods were used to evaluate groundwater resources of yangzhuang karst water system in this paper. calculation and analysis of water resources carrying capacity of yangzhuang basin were set up. as well as suggestions of protection about yangzhuang karst water system was provided clearly

    在分析研究羊莊盆地水文地質條件的基礎上,應用遺演算( ga )進行水文地質參數,並利用三種方計算評價了羊莊巖溶水系的可采資源量,計算分析了羊莊盆地的水資源承載能力,並提出了增源增采及分級保護的措施。
  18. Because of the defect of long running time and big complexity in the classical job - shop scheduling algorithm, the paper brought forward an intelligent optimization algorithm based on rule ; scheduling process is divided to primary process and optimization process. through the method of ahp ( analytical hierarchy process ), the effect is researched between several rules and estimate. moreover, the results of ahp are used as a measurable standard to scheduling results

    本文針對車間作業調度演算運行時間長,復雜度大的缺點,提出了基於規則的智能化調度演算,將排序的過程分為初始排序與化排序;基於多目標決策的層次分析方,得出了各種規則與系評價指標之間的影響度,其結論為生產計劃方案的擇提供了定量的參考依據。
  19. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面: 1 、針對頻率擇性衰落通道:結合輸入輸出空間同構關系提出一種新的頻率擇性通道均衡方,與相比,該方計算量更小,收斂速度更快,性能更,且對系階次的過確定表現穩健,具有實際均衡應用價值; 2 、針對時間擇性衰落通道:提出一種基於迫零均衡的時間擇性通道均衡方,演算結構簡單; 3 、針對時變色散通道:利用瞬態均值曲線提取通道時變信息,對之ar建模,利用卡爾曼濾波器跟蹤時變通道抽頭變化,可以快速跟蹤通道變化;基於輸入輸出空間之間的同構關系以及多輸入多輸出系的處理方,提出了新的單輸入多輸出色散時變通道均衡與識別演算,同樣具有對通道階次過確定保持穩健的點;結合小波多解析度分析提出一種基於小波模型的通道盲識別演算;研究時變的多輸入多輸出系的盲均衡與盲反卷積問題,給出一種時變系處理模型。
  20. The appliance range of traditional tree - gauge arithmetic is narrow. this paper provide a new method of the choice of the tree. this method is based on the matrix and the finite element equation, so it can be called matrix method. this mathod adopts 1 range number of the matrix as the condition to choose branches of the tree, it is theoretically optimal, the analyses of calculation also shows that this arithmetic is excelled traditional method

    本文提出了一種新的樹規范擇演算。這種演算是建立在對系數矩陣與有限元方程進行分析的基礎上的,所以被稱為矩陣。由於採用了向量的1范數作為擇樹支的條件,所以這種演算在理論上是最的,實際的算例的分析也表明這種演算演算
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