probability element 中文意思是什麼

probability element 解釋
概率元素
  • probability : n 1 或有;或然性。2 【哲學】蓋然性〈在 certainly 和 doubt 或 posibility 之間〉。3 【數學】幾率,...
  • element : n 1 要素;成分;(構成)部分;分子。2 【化學】元素;【數學】元,素;【機械工程】單元;單體;【無...
  1. The probability of finding the particle in the volume element at point(x. y. z. )with edges dx. dy. dz is as follows.

    在點(xyz)具有邊dx,dy,dz的體積元內找粒子的幾率如下。
  2. As a practical application, the safety situation of jiujiang dike under the 1998 pluvial condition of once a hundred years in yangtze river has been evaluated by the reliability method from the point view of the seepage stability in terms of probability analysis and two dimensional saturated seepage finite element analysis combining with the mechanism of seepage burst in jiujiang dike summarized in the thesis

    通過滲流有限元和滲流可靠性分析論證了1998長江流域特大洪水災害中九江市防護大堤發生的嚴重潰口破壞的滲流破壞機理。分析、比較得出結論:堤防下游坡腳的出逸比降接近和超過臨界比降,在1998年長江百年一遇的洪水條件下九江大堤潰口斷面的抗滲可靠性僅在55左右的非常低水平。
  3. In the study on the method of risk decision in project bidding based on considering emulant, according to the contents and the characteristics of risk decision in the stage of bidding, based on considering the pure risks and the speculative risks, and setting out from monomial risk, internal number and internal probability were used in describing each risk element. then, the optimization of strategies for monomial risks was done. and the computation was used to sew up the scheme, the progress, the cost and the overall risk compensation

    在工程項目投標階段的風險決策方法研究中,根據投標階段風險決策的內容和特點,在考慮純風險和投機風險的基礎上,從單項風險入手,運用區間數和區間概率的性質,先描述各個風險要素,然後進行單項風險對策間的對比擇優,並將其結果對應于方案、進度、成本費用及投標報價總風險補償費的確定,最終實現承包商的風險成本最小化。
  4. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; ( 2 ) the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; ( 3 ) the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project : the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; ( 4 ) the software system development for the long - term monitoring for dikes : the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; ( 5 ) reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ; ( 6 ) fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; ( 7 ) 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析:被成都勘測設計研究院應用於比選報告及可行性論證中; ( 2 )小關子水電站攔河閘壩及地基的應力應變分析:被成都勘測設計研究院應用於地基加固處理方案; ( 3 )三峽廠房7 # - 14 #壩段溫控並縫措施研究:為廠房壩段並縫方案的可行性提供了依據; ( 4 )堤防工程體系的長期監控預報預警決策系統開發:為監控、預測預報堤防滲漏管涌破壞提供分析軟體; ( 5 )向家壩地下洞室群圍巖穩定的安全可靠性分析:被中南勘測設計研究院應用於初步設計方案中; ( 6 )靠船墩的疲勞可靠度研究:為廣東航運規劃設計院的靠船墩優化設計和加固提供依據; ( 7 )溪洛渡高拱壩壩體壩基(壩肩)強度和穩定的三維靜動力隨機有限元分析及可靠度計算:為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  5. The finite element probability computing methods for parabolic problem

    拋物問題的有限元概率演算法
  6. The occurrence probability and existence form of internal defects in rolled pieces during three - roll and two - roll cross wedge rolling were compared and analyzed by finite element numerical simulation

    摘要採用有限元數值模擬方法,比較分析了三輥楔橫軋與兩輥楔橫軋軋件內部缺陷的產生幾率和存在形式。
  7. Abstract : the concepts of the random matter elements, the matter element models of the random events and the concepts of extension events and extension probability in extension mathematics are introduce. also, we consider the fundamental properties of extension probability and prove that classical probability is a special case of extension probability

    文摘:引入了隨機物元的概念,建立了隨機事件的物元模型,提出了可拓數學中可拓事件與可拓概率的概念.初步討論了可拓概率的基本性質,證明了經典概率是可拓概率的特例
  8. To avoid the probability, engineer calculate the cable tension and the pre - rising elevation with finite element theory, it cost much time in design the program and repeat calculation, the other hard work is to find out the place where the cables located in span arch structure, its must find out the optimized result manually which restrict the design work. recent years, lots of commercial fea software develop rapidly. engineers focus on the solution of commonness problems by the software existed

    為了解決這個問題,設計人員常常採用有限元方法計算扣索受力及拱肋控制標高,並根據計算結果設計扣索吊裝位置,在此過程中大量重復編程及計算工作佔用了很多工作時間,另外在扣索吊裝位置的選定過程中又沒有明確的方法,只能根據大量的計算結果人工尋找優化方案,這些都制約著設計工作的開展。
  9. Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method

    給出了離散裂隙網路模型所依據的基本假定;發展了基於baecher模型的離散裂隙網路計算機隨機生成技術:詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式,發展了離散裂隙網路中穩態滲流的邊界元數值技術,並且討論了相關的具體數值技術細節,如角點的處理方法,單元的自動剖分等:描述了混合邊界元?管流模擬方法及其數值實現;研究了裂隙網路的簡化方法,並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。
  10. Considering the fuzziness of some boundary conditions enviroment media, and especially some loads in the engineering structure analysis, we go further into the computation based on the dynamic problem of fuzzy finite element ( ffe ), study further and systematically the analysis and solution. the principle of fuzzy minimum potential energy is established, and the balance equation of fuzzy finite element is reasoned by making fuzzy variation. at the same time, the dynamic balance equation of stochastic by making stochastic variation , also the fuzzy stochastic dynamic balance equation is deduced. based the theory that the degree of the fuzziness and probability can be measured, in the other word, by using the concept of fuzzy entropy and entropy, pure fuzzy dynamic structure is given through transforming the probability to fuzziness. for the fuzzy parameter can be regarded as a fuzzy vector with dimensions, the structure ' s eigenvalue, by the theory of small parameter

    建立了模糊瞬時最小勢能原理,運用模糊變分原理導出了模糊有限元動力平衡方程;同時,利用隨機變分原理導出了動力問題的隨機有限元方程,同時得到了模糊隨機動力問題的有限元平衡方程。根據模糊度和概率度可以度量的原理,即利用模糊熵和概率熵的概念,把結構的隨機性等效地轉化為結構的模糊性,得到純粹模糊性的動力結構。把結構所具有的模糊參數看作一個維的模糊向量,利用小參數攝動原理,把結構的特徵值,特徵向量和位移都在模糊向量的均值處進行泰勒展開,得到一組遞歸方程,即可以求得結構的模糊特徵值,特徵向量和模糊位移。
  11. Based on finite element and general reliability analysis, the structural optimization design model based on probability is constructed, which refers the cross - section areas as the design variables, refers the minimum of the frame ’ s weight as the object with the reliability restricts of stress and displacement

    在結構廣義可靠性分析的基礎上,構建了以桿截面積為設計變量,使結構重量極小化為目標函數,同時具有應力和位移廣義可靠性約束的優化設計數學模型,並將其應用於天線結構的優化設計之中。
  12. The fist step is to judge the damaged sub - area of the structure, which is divided into several sub - areas, using probability neural networks with neural frequencies shift ratio input, and the next step is to diagnose the exact damage location and extent using rbf neural network with the second element end strain mode of the damaged sub - area input

    即按照先查找結構損傷區域,后進行損傷位置與程度診斷的思想,首先將結構分為若干個子區域,根據結構損傷前後的自振頻率變化比,應用概率神經網路,進行結構損傷子區域的判定。然後,根據損傷子區域內的應變模態變化,應用徑向基神經網路診斷結構的損傷位置與程度。
  13. Abstract : fault tree analysis is introduced about diagnosing fault in the electromechanical equipment. the qualitative and quantitative analysis is made to the structure and action of the fault tree analysis. this paper presents logical relationship between the element fault and system fault. general formulas are deduced from system reliability and the probability of the system fault

    文摘:介紹了機電設備的故障樹分析法,對故障樹的構成及其作用作了定性及定量的分析,指出了元器件的故障與系統故障的邏輯關系,並給出了系統故障概率計算公式及實例。
  14. An application example provided for the application of finite element method in probability analysis. three main procedures are described for probability analysis in ansys. they are the form of the model files, procedure for probability analysis, postprocess and distill of results, so theories and practices are combined tightly in this paper

    第六章是有限元法在可靠性分析中的應用實例,以一臺龍門起重機為例,詳細描述了在有限元中進行可靠性分析的三個重要步驟:模型文件的生成、可靠性分析階段、后處理和結果的提取,因此本文將理論與實踐密切結合起來了。
  15. In the paper, i employ the theory of finite element of steel frames and monte carlo method, describe the production method of the random variable of the average - distribution n ( 0, 1 ) and write program with fortran 90. the random numbers is tested in many ways for its quality ; the result is good. they can produce random with all kinds of probability distribution

    本文以半剛性連接的鋼框架的有限元理論和蒙特卡洛隨機模擬理論為基礎,描述了均勻分佈的n ( 0 , 1 )隨機數的產生數學分法,並編制了計算機程序,對由軟體產生的均勻分佈序列的隨機數性能進行各種檢驗,檢驗成果是良好的,可用於產生各種概率分佈的隨機變量。
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