破斷系數 的英文怎麼說

中文拼音 [pòduànxìshǔ]
破斷系數 英文
breaking factor
  • 破 : Ⅰ動詞1 （完整的東西受到損傷） be broken; be damaged 2 （使損壞） break; break down; damage 3 （使...
  • 斷 : Ⅰ動詞1 （分成段） break; snap 2 （斷絕;隔斷） break off; cut off; stop 3 （戒除） give up; abstai...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. On the basis of investigations into the progressive yield process and the possible failure modes of rcc gravity dams, the quasi - elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed. a check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived. finally, the corresponding design safety factors are given by using fem calculations with various influence parameters to be taken into account

    本文在研究碾壓混凝土重力壩漸進破壞過程和可能失穩方式的基礎上，提出了以準彈性臨界作為穩定臨界準則的設計極限狀態，分析了按該準則設計的大壩的實際工作狀態，導出了以準彈性強度儲備系數為設計安全指標的審查公式以及形式與抗剪斷公式相同的簡化公式，探討了定量計算考慮各種因素影響的相應設計安全系數的合理取值，並與現行規范方法進行了比較
  2. Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )

    本研究以武裝直升飛機防護裝甲材料為研究對象，採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料，結合其力學性能、掃描電鏡和界面微區能譜分析結果，分析了sic _ p al復合材料的真空燒結過程中的界面現象，以及材料增強和斷裂機理，並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態（應變率為3 . 3 10 ~ （ - 3 ） s ~ （ - 1 ） 5 . 2 10 ~ 3s ~ （ - 1 ） ）的壓縮破壞響應進行了研究，分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下，材料的變形和微觀損傷機理，以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。
  3. Many structure damage detection methods have been developed based on atime - invariantdynamical systemthatisassumethestructuralphysicalparameters ( such as stiffness, damping coefficients ) are time - invariant

    基於時不變系統已經提出了許多結構破損診斷的方法，認為結構參數不隨時間改變。
  4. ( 2 ) taking the geology analysis as main way and combining the pre - test, predicating the tunnel ' s main geology condition ( rock quality, surrounding rock classification, long - wide joint, fault, ground water, crustal stress ), and predicating the main potential disaster ( collapse, breaking water, rockburst, large deformation ) ( 3 ) employing the stress test result and inverse analysis of the stress field, finding out the crustal stress " s distributing rule along the tunnel axes section : the highest crustal stress is 24mpa near the deepest spot, and predicting that the k2 + 260 ~ k3 + 000 likely to be the high crustal stress segment for this tunnel

    通過地質分析、類比分析、監控量測、數值模擬、神經網路等方法，對鷓鴣山隧道潛在的主要地質災害（塌方、涌水、巖爆和大變形）進行了預測預報（ 3 ）在現場地應力測試成果的基礎上，運用數值計算進行應力場反演，基本查明了沿隧道軸線剖面的地應力分佈規律：地應力量級在最大埋深附近達到最大值24mpa ，並預測k2 + 260 k3 + 000段將很可能成為鷓鴣山隧道的高地應力段。 （ 4 ）塌方往往與斷層破碎帶及千枚巖相聯系。
  5. In the first part of this dissertation, theory of fracture mechanics of the frozen soil has been presented. a general strength theory based on fracture mechanics was proposed, and the validity of the theory using in frozen soil was discussed. the fracture toughness values for different kinds of cracks extension were determined, such as the plane strain fracture toughness for mode i cracking ( kic ), fracture toughness for mode cracking of frozen soil and the intersection of frozen soil and concrete

    論文第二章為凍土斷裂力學的基本理論，包括斷裂力學在凍土研究中的工程適用性、條件適用性、平面應變斷裂韌度測試的適用條件等，給出了凍土斷裂韌度k _ （ c ） 、 k _ （ c ） 、 -型復合斷裂測試的基本原理及試驗方法，並基於weibull脆性破壞理論推導了凍土三點彎曲試樣k _ （ c ）尺寸效應系數，為後面的工作提供理論基礎。
  6. According to the geological data which was gained by exploration investigation, establishing a geological model which can reflect rock mass characteristics ; with analyzing the internal and exterior factors synthetically, the deformation and possible failure mechanism and mode of the cut slopes was confirmed which combines with stereoic projection and other techniques ; the stabilities of the 14 high slopes are estimated synthetically by applicable design codes and guidelines. with the estimate result and some other analysis methods, the rock mass mechanical parameters of slope are identified ; as a results, 14 high slopes fall into 4 categories based on rockmass characteristics and discontinuities. the stability and deformation of some typical slopes was analyzed with distinct element method by udec ; the safety factor of some dangerous slopes are calculated by rigid limiting equilibrium method for comparison

    首先著重研究影響邊坡穩定性的內在因素，主要是通過地質勘探、測量、現場觀測等手段取得研究區地質體的基礎地質資料，建立起能夠反映地質體結構特徵的地質模型;隨后綜合分析潛在的內外部影響因素，並結合赤平投影對邊坡可能的失穩模式或破壞機製作出判斷;運用已有巖體質量分類方法對沿線14個高陡邊坡穩定性進行初步的評價，並結合試驗研究、經驗判斷、工程類比等手段確定了坡體的巖體力學參數;根據穩定性初步評價結果將研究區14個高陡邊坡按開挖方式分為4大類，並利用離散元程序udec對各類典型高陡邊坡進行了穩定性計算分析;對潛在危險邊坡利用剛體極限平衡法求出了不同工況下的安全系數。
  7. In theory, disaster tolerance technology includes heartbeat detection technology and many other technical means, such as two module backup, computer cluster, storage area network, etc. in computer systems, when human operation failure occurs, system error occurs, or even physical attack, lack of power, flood and other disaster occur, disaster tolerance technology can prevent system from losing data, meanwhile, provide high availability service

    從范疇上講，容災技術包括心跳檢測技術在內的許多技術手段，如雙機熱備份，計算機集群，存儲區域網路等。在計算機系統發生人為失誤，系統錯誤，甚至受到外來打擊或者遭到停電，洪水等災難性的破壞時，容災技術仍能使系統在少損失數據甚至不損失數據的情況下對外提供高可用不間斷或間斷時間很短的服務。
  8. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  9. This paper is on the basis of analysedding and summarized that these projects were blown up and tested materials in the past, use fracture mechanics, the dynamics blast theory and finite element analytical method, have carried on the system, detailed analysis and describes to this kind of method of blasting, proving theoretically that can cut the base rock effectively in this kind of method of blasting, reduce base blowing up stress value inside the rock, play and protect underpart base rock blow up into the function influenced in vibration, and blew up mechanism and analysed the main influence factor blown up according to it, had put forward the rational optimization measure to the relevant parameter when implementedding and blown up

    本文在分析總結以往這些工程爆破試驗資料的基礎上，運用斷裂力學、爆破動力學理論及有限元分析方法，對這種爆破方法進行了系統、詳細的分析及論述，從理論上證明此種爆破方法可以有效地切割基巖面，降低基巖內部的爆破應力值，起到保護下部基巖不受爆破振動影響的作用，並根據其爆破機理分析了爆破的主要影響因素，對實施爆破時的相關參數提出了合理的優化措施。
  10. Specifically, according to the w - w five parameters failure theory, the fracture criterion of crack is established, and the state of crack ( open or close ) is judged by the values of the crack strain. combining the two points, the predict - model about the failure of concrete material is established. this predict - model can predict 16 failure forms, and basing the different failure form predicted after crack, the stress - strain relationship matrix of concrete material is adjusted

    具體來講，根據w - w的五參數混凝土破壞理論，建立混凝土的開裂準則，根據開裂應變值來判斷裂縫是張開還是閉合，從而在兩者基礎上建立了裂縫的開裂預測模式，總共有16種開裂模式；裂后根據具體的開裂模式及殘余抗剪能力來調整混凝土的本構關系矩陣，即用等效剛度代替原有剛度，考慮到垂直於裂縫方向的剛度為零，這樣會使裂后的總剛出現病態，為此文中通過引用鬆弛系數來對出現裂縫的單元進行預處理，一方面可解決因過大的舍入誤差導致計算結果的不可信問題，另一方面就是可加速收斂。
  11. According to the geological conditions of baise project, erosive bands and joint fissures, f6 fault and grout curtain are fully simulated to establish 3d numerical model of the dam and its foundation. 3d non - linear fem is used to analyze the stress and strain and to appraise the operation state of both the dam and it ' s foundation under different operation conditions. by overloading the upstream water level and reducing rock strength parameter, the dam foundation ' s degradation process is simulated and the damage pattern and paths are determined, and finally the safety factor is determined

    2 、根據百色的地形地質條件，充分模擬了蝕變帶、節理裂隙、 f6斷層、灌漿帷幕等，較為真實地建立了壩體與地基相互作用的整體三維數值模型；採用有限元法對壩體及壩基在不同工況下的應力應變狀態開展分析，評價各工況下壩基的運行狀態；而後採用超載法和綜合法對大壩穩定性進行分析，模擬壩基的漸進性破壞過程，從而得到壩基在超載和強度下降過程中的破壞模式和破壞發展路徑，最終確定壩基超載安全系數和綜合安全系數。
  12. With the continuously expanding of seismic exploration in the basin, it is carried out to tackle key problem of mountainous seismic technology, based on the old data analysis and exploration experience, through implementing a series of measures including observation system design aimed at the target, fine investigation for surface structure, sampled parameters test, well depth design by selecting rock and bed and other acquisition techniques, a series of more mature exploration technique suited for complex mountainous region has been developed and the break through has been made its quality of data acquired field, providing the strong technique support for petroleum exploration in complex mountainous region

    隨著盆地地震勘探的不斷深入，在總結，分析以往資料和勘探經驗的基礎上，在該區進行了山地地震攻關，通過針對目標的觀測系統設計，精細的表層結構調查、科學的採集參數試驗、選巖選層的井深逐點設計及其他相應的採集技術措施，形成了一系列比較成熟的復雜山地勘探技術，在野外採集資料品質方面取得了突破性的進展，為復雜山地的油氣勘探提供了強有力的技術手段。
  13. Researching on the technology if reverse order is to study strains if pits, structural systems if basement, environmental surwey and underpinnings. on account of emphasizing developing methods if checking strength if pick - ets, modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites, which leads an active effect ; synthetic application if rankintheory, spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay, the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it. duringh the temporary survey and the environmental warship, bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation. based on systematic illustrating the reverse order, problems about application and development of reverse order and suggestions also are expressed

    鑒于國內外的研究把重點放在大力發展工程樁的實驗室承載力監測方法與設備、如何使土方開挖機械現代化及對周圍建築的臨測方法上，本文提出了現場利用聲波層析成像技術監測鋼砼樁內部質量的方法與程序，並得出了聲波層析成像技術是砼樁的動態質量檢測的有效手段，這對指導施有積極、現實意義；提出了綜合運用朗肯土壓力理論、基坑空間和時間效應影響理論來分析逆作法施工過程中基坑邊坡土體應力及應變的變化情況，指出粘土地區也應考慮時間效應，並且進一步分析了基坑邊坡土體的塑性區形成和發展，找出邊坡最不利的區域，以確定地下室土體的挖掘的方式和順序，指出憑主觀臆斷與經驗來施工是不可取的；在分析、經較逆作法與大開挖順作法的地下室結構體系受力情況及施工順序的不同，提出了節點處理技術；分析了逆作法施工期間樁的沉降變化原因及由此而產生的差異，並探討了解決的方法；本文還提出了環境振動對土體邊坡穩定產生影響的觀點，並分析了在環境振動影響下，土體的應力狀態及土休失穩破壞概率，並且還運用彈性力學知識和數學分析的方法定量地分析了地下混凝土墻受力狀態，指出了被監測墻體的最大應力、應變位置。
  14. Influence of the position and flow capacity coefficient of vacuum breaking value device on siphon breaks

    真空破壞閥裝置位置和風量系數對虹吸斷流的影響
  15. The paper is on how to set up lab platform of vapour spewing to uppercooling water surface to coagulate directly and to observe and analyse which vapour coagulate on the water surface, the results enable people to know the security system of nuclear power. the range of the pressure parameters of prz is from 0. 2mpa to 0. 6mpa, and the range of the initial temperature parameters of cmt is from 23. 5 to 78. 5, all of the testing points are 30 and there are fifty thousand testing data. many results of vapour spewing to uppercooling water surface vertically to coagulate can get. for example : coagulating can make the water of cmt surge forcefully when vapour spews to uppercooling water surface, too many vapour - bubbles come into being and strike the water of cmt owing to rupture continually, all these will strengthen the surge because of the vapour pressure of cmt

    實驗中prz飽和蒸汽壓力變化范圍為: 0 . 2mpa - 0 . 6mpa ， cmt中水初始溫度變化范圍: 23 . 5 - 78 . 5 ，實驗中測試工況30個左右，實驗測試數據50萬余個，得出了很多與非能動安全系統相關的蒸汽垂直噴向過冷水表面凝結時的結論：蒸汽垂直噴入過冷水表面凝結時會造成cmt中液面的強烈波動和振蕩，產生大量蒸汽汽泡，汽泡不斷破裂對cmt中液體帶來很大沖擊，勢必引起cmt中液體的振蕩，造成cmt汽空間汽壓不均勻，加強cmt液體的振蕩和波動。
  16. However, in fact, thephysical parameters and dynamical character of the structure duringthe occurrence ofdamage are time - varying, and the response signalbehaves a non - stationary character. thus, it is generally recognized that the linear time - varying ( ltv ) model is moreappropriate and better than linear time - invariant ( lti ) model to capture theinstantaneous dynamical behaviors

    然而事實上，結構的損傷使得其物理參數和動態特性隨著時間而變化，結構的響應具有非穩態的特徵。因此，利用線性時變系統模型，獲取系統的時變特徵，才更有利於結構破損診斷，線性時變系統的參數識別也受到了越來越多的關注。
  17. Under internet entironment, data stored in database management system may be faced with unauthenticated disclosure, modification, counterfeit, broken, and so on. all these threat destroys the data ' s confidentiality. integrity, availability and facticity

    在internet環境下，數據庫管理系統中存儲的機密數據可能被非授權的泄露，纂改，中斷和偽造等。這破壞了數據的保密性，完整性，可用性和真實性。
  18. The break was assumed to be a single tube double - ended and three - tube double - ended shear break. the diameter of the break orifice is 0. 876mm and 1. 518mm respectively. the characteristic responses of main thermal - hydraulic parameters, such as primary pressure, secondary pressure, break flow rate, pressurizer level, secondary side level of steam generator and so on, were presented in this thesis

    試驗再現了核電廠蒸汽發生器單根傳熱管雙端斷裂事故和三根傳熱管雙端斷裂事故發生后的熱工水力現象，給出了事故過程中一次系統壓力、二次系統壓力、破口流量、蒸汽發生器二次側水位、穩壓器水位、元件表面溫度等主要參數的瞬態響應。
  19. The damaged results indicated that energy consumption was the largest environment burden for beijing cement production, and then the land occupation and land conversion ; the normalized and weighted assessment showed that the environmental burdens, especially for the damage to human health and ecosystem quality, was becoming more and more serious with the increase of eco - indicator value of beijing cement production

    特徵化計算表明，對環境影響最大的因素是能源消耗，其次是土地佔用與破壞；標準化與歸一化分析表明，近年來，北京水泥生態指數不斷增加，水泥生產對環境造成的負擔進一步加劇，尤其是對人類健康和生態系統質量的影響。
  20. The distribution areas of the high coefficients of cracked degree of the rocks are located at the crests of gaomuding structure and baoyuan structure besides the fault belts, where the coefficients of cracked degree of the rocks are commonly greater than 1. 42 and those around the above - mentioned areas are relatively high, being more than 1. 03 in general, which shows that the cracked degree of the rocks in t1j ^ 5 ( subscript 1 ), reservoir is relatively great and the fractures in it are relatively developed

    破壞程度系數最高的分佈區帶除了斷裂帶外，還有高木頂、寶元構造的核部，這些地區巖體破壞接近程度系數普遍高於1 . 42 ；在上述地區的外圍巖體破壞系數也比較高，一般大於1 . 03 ，這說明嘉五1層巖體的破壞程度較高，裂縫比較發育。
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