時效應力分析 的英文怎麼說
中文拼音 [shíxiàoyīnglìfēnxī]
時效應力分析
英文
time-dependent stress analysis- 時 : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
- 效 : Ⅰ名詞(效果; 功用) effect; efficiency; result Ⅱ動詞1 (仿效) imitate; follow the example of 2 ...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 析 : Ⅰ動詞1. (分開; 散開) divide; separate 2. (分析) analyse; dissect; resolve Ⅱ名詞(姓氏) a surname
- 時效 : 1 (在一定時間內能起的作用)effectiveness for a given period of time2 [法律] prescription3 [冶金...
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In this paper, using the program ( epagpll ), the bored testing pile group of the chinese architecture science and research institute at luokou area are analysised. the comparisons among analytical results of four constitutive models of soil are made, and the deformation of piles and soil, the soil resistance of the piles, the friction beneath cap, the aclinic displacement of the ground soil before piles and the failure pattern of pile group are discussed in detail
本文利用所編的程序,對上海地區豎向荷載作用下的單樁的流變效應進行了分析,並通過樁體位移?時間關系曲線,確定軟土地基上豎直受力樁的承載力,分析了豎直受力樁的最終沉降量的大小,並結合《上海地區地基基礎》地方規范就程序計算結果進行了對比。From analyzing the change of effective stress in the process of one - direction to two - direction load, it is founded that the evanescing process of pore water pressure proposed in the paper shows a better agreement to fact
從對單向荷載作用時地基的有效應力變化過程分析入手,引伸到對雙向荷載作用時地基的有效應力變化過程分析,提出與實際情況更為符合的孔隙水壓力消散過程。Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面電流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨時間變化曲線圖,利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。With an analysis of soil liquefaction potential for free field of nanjing metro line 1 under 7 degree earthquake, as well as for excavated field, in line with railway engineering anti - earthquake design specification, dynamic triaxial tests and theoretical analysis using efficient stress method, the author comes to the conclusion that, when metro plate is located at layer s and the layer is thick, liquefied area is at metro bottom plate ; in some local section liquefied area is at metro top plate, or arch sides at the top of metro in most places
摘要採用鐵路工程抗震設計規范、動三軸試驗及有效應力的理論分析相結合的方法,對南京地鐵南北線( 1號線)區間隧道開挖后其地基土在7度地震情況下的土層液化情況進行分析得出:當隧道底板坐落在5層且5層較厚時的液化區出現在隧道襯砌底板處;局部地段液化區出現在隧道頂部及拱腰;大部分地段的液化區出現在隧道頂板上方。This paper, in the light of the special geological environment and actual project situation of the three gorges reservoir area, puts forward a comprehensive analysis and evaluation system suitable for the stability analysis of the bank landslide of the three gorges reservoir area under the premise of thorough consideration of the water influence on the stability of the bank landslide, and obtains the following achievements in several aspects that have the practical application significance and certain scientific research value : ( 1 ) it is discovered that the water activity is the primary factor of the formation of the new landslide and the revival of the ancient landslide. on the one hand, the rising underwater level reduces the actual stress of landslide ; on the other hand, the long time soaking of the underwater reduces the mechanics intensity of the landslide and the slide belt, both of which reduce directly the landslide stability ; ( 2 ) in view of the special condition of the three gorges reservoir area, this paper analyzes systematically the forces acted on the landslide of the three gorges reservoir area and the force varieties acted on the divided landslide when the water level changes between 175 meters and 145 meters. thus it is more scientific and comprehensive for the analysis of the forces acted on the landslide ; ( 3 ) this paper summaries systematically 10 kinds of typical computation projects by organic combinations of different kinds of situations in the dry season ( nature statue ), rainy season ( rainstorm or rains for a long time condition ), with 175m water level in the reservoir, during the earthquake, with the water level of the reservoir adjusted from 175m to 145m and so on, and produces
本文針對長江三峽庫區特殊的地質環境與工程實際情況,在充分考慮水對庫岸滑體穩定性影響的前提下,提出了一個適用於長江三峽庫岸滑坡體穩定性分析的綜合分析評價體系,並取得了如下幾個方面具有工程實際意義和一定科學研究價值的研究成果: ( 1 )研究結果發現,水的活動是新滑坡形成或古滑坡復活的主要因素,一方面是由於地下水位升高降低了滑坡體的有效應力,另一方面是由於地下水的長期浸泡降低滑體及滑帶的力學強度,這兩方面的因素均將直接降低滑坡的穩定性; ( 2 )針對三峽庫區的特殊條件,系統分析了作用於三峽庫區滑坡體上的力系和庫水位在175m與145m間變化時滑體條塊的受力變化,從而使對作用於滑坡體上的力系分析更科學、更全面; ( 3 )通過對滑體處于旱季(天然狀態) 、雨季(暴雨或長期降雨狀態) 、 175m庫水位、地震以及庫水位由175m調節下降至145m等各種不同情況的有機組合,本文系統地歸納總結出了10種典型計算工況,並具體給出了相應的作用荷載的計算方法,使在庫區岸坡滑體穩定性分析評價時對計算工況選擇及其作用荷載的計算更具規范性; ( 4 )具體運用c + + builder開發了關于滑坡體穩定性綜合分析評價系統,使對滑坡體穩定性分析計算更方便、更準確; ( 5 )將上述滑坡體穩定性綜合分析評價系統應用於重慶市豐都縣名山滑坡穩定性分析的具體事例中,分析結果表明,本文所提出滑坡體穩定性綜合分析評價方法對三峽庫區的滑坡穩定性分析是實用可行的。And four constitutive models are established, which are hyperbolic model, half - logarithm model, exponential model and poisson model. combined with the analysis of the change of effective stress, the iteration formulations of settlement calculation are provided
同時建立了雙曲線模型、半對數模型、指數模型及泊松曲線模型四種本構模型,並結合有效應力過程分析給出了實用的沉降過程線的反演迭代公式。It analyzes various factors which include the slope of curve is and lm, investment interest elasticity b, expenditure multiplier, income elasticity k and interest elasticity h of currency demand, that decide the fiscal policy and monetary policy effects by economics and geometric figures. it also demonstrates two particular situations : " crowding out " and " keynesian liquidity trap "
它從幾何圖形和經濟學意義上分析了影響和決定財政、貨幣政策效力的各種因素,這些因素包括is曲線和lm曲線的斜率以及投資的利率彈性b 、支出乘數、貨幣需求的收入彈性k和貨幣需求的利率彈性h ,並同時論述和分析了財政、貨幣政策效力分析中常見的兩種比較特殊的情形「擠出效應」和「凱恩斯流動性陷阱」 。However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper
充膠樣品粗化尤為嚴重; ? ni - sn金屬間化合物包括兩層:其中,靠近ni焊盤的那層比較平整,同時, eds結果分析表明其化學式近似為nisn ,而靠近焊料的那層呈板條狀,化學式近似為nisn _ 3 ,文獻表明其為亞穩相; ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用,同時,器件失效模式變為晶元粘接層分層; ? c - sam結果表明本論文採用的充膠樣品,晶元粘接層分層起始於500周左右,而經過2700周循環的樣品,分層幾乎擴展到整個界面。The present findings of nonlinear research in frame structures, and the methods for design of second - order effect in the codes from china and other countries, were briefly introduced in this paper. the contents and methods of design and calculating about second - order effect in gb50017 - 2003 were discussed as well. a rotational displacement equation for geometric nonlinear structures was derived, and then a nonlinear finite element program for rigid frames was compiled by fortran
本文簡要地介紹了框架結構非線性研究的現狀以及各國規范對框架二階效應的設計內容和方法;對我國《鋼結構設計規范》 gb50017 - 2003給出的考慮框架結構二階效應的方法進行了探討;推導了基於幾何非線性框架的轉角位移方程,在此理論基礎上用fortran語言編制了剛性框架二階內力分析的有限元計算程序,並用此結構分析程序對多種框架進行了一階和二階的彈性分析,討論了二階效應在框架分析中不應忽略的原因,同時分析了影響框架二階效應的因素。Restrain alteration size is applied to improve the efficiency of structure optimization. approximate reanalysis technology is introduced to save the time of stress reanalysis. the multi - cantilever method and the finite element method is combined to analysis the arch dam, to enhance the capability of practical applications in engineer
在拱壩優化設計中採用了約束變尺度演算法,提高了優化效率;在優化重分析過程中,採用近似重分析技術,節省應力分析時間;採用試載法和有限元相結合的應力分析方法,提高了解決實際工程問題的能力。A way to avoiding crack or reducing crack width of concrete or reducing distortion of member is using prestressed concrete. the writer tried to make full use of the merit of the prestressed concrete and designed prestressed concrete mandril to control crack of structure. the prestressed concrete mandril, which was firstly applied high pressure on a small concrete bar, and then was made in concrete, so it would act as reinforced bar and resist load. in this thesis the writer designed 24 mmnbers and had experimental study of them, reached the conclusion that the effect of resisting crack of the prestressed concrete mandril was good when the load was not large, it can enhance the capacity of resisting crack and reduce the crack distance and crack width, but when the loads was large, the effect of resisting crack was not good, when we used the prestressed concrete mandril and reinforced bar together in member, the effect of resisting crack was very good. the writer analysed the adherence mechanism and wreck mechanism of the prestressed concrete mandril in anxial tension members, and according to the character of the prestressed concrete mandril, the writer constructed the bond model of it. then the writer introduced the analysis theory of crack including the bond - slip theory, the non - slip theory, the synthesis theory and mathematics stat method. the different theory had different theory base, they considered that the primary affection of crack width was different. in this test, the crack distance and crack width of members which placed reinforced bar were match to the compute value of the code gb 50010 - 2002 very well. to the members which
本文共進行了24根試件的試驗研究,得出了預應力混凝土芯棒能較大地提高構件抗裂承載力,在荷載小於預應力混凝土芯棒的開裂荷載時有較好的抗裂效果,能較大地減小裂縫間距和裂縫寬度,但是當荷載較大預應力混凝土芯棒開裂時預應力混凝土芯棒的抗裂效果不是很好,若將普通鋼筋和預應力混凝土芯棒一起使用時則有很好的抗裂效果。本文分析了預應力混凝土芯棒在軸拉試件中的粘結機理和破壞機理,根據預應力混凝土芯棒本身的特點,提出了預應力混凝土芯棒與后澆混凝土之間的粘結模型。然後本文詳細介紹了經典的裂縫分析理論粘結滑移理論、無滑移理論、綜合理論和數理統計方法,各理論有著各自不同的理論基礎,認為影響裂縫寬度的主要影響因素也各不相同。Abstract : according to the probability fracture mechanics, distribution characters of some parameters related presure vessel and allowance failure probability are discussed in the paper, and then the probability calculation method of pressure vessel is analyzed in thd case of the two kinds of distribution of material strength. finally, one of the complete assessment methods, failure probability of pressure vessel, is introduced
文摘:應用概率斷裂力學的觀點,討論了壓力容器各有關參數的分佈特點及允許的失效概率,分析了材料韌性為兩種不同分佈時壓力容器可靠性計算方法,說明了進行壓力容器失效概率分析是全面評價壓力容器的方法之一。Abstract : this paper points out that the properties of casting t reated by vibrating ageing is superior in comparing with that in the as ca st state and heat ageing state through analyzing the residual tress distri buting, mechanical properties and resistance to deformation
文摘:對鑄件的鑄態、熱時效態和振動時效態在內應力分佈,力學性能及抗變形能力方面的特性進行分析對比,發現振動時效態均優於前2者。The whole dynamic finite - element analysis simplified based on 2d plane is performed to adapt engineering requires. the effect of both kinematic interaction and inertial interaction on pile - soil - structure systems within layered soil field is relatively comprehensively investigated. at the same time, the boundary effect of model, the horizontal dynamic features of piles and the nonlinear characteristic of slide and contact on the interfaces of pile - soil are considered too on the ground of no - element meshing technique applied for dimensional effect of piles in stratum - soils
建立了以適應工程需要的基於二維平面動力分析的簡化整體有限元模型;提出了能有效考慮樁尺寸效應的樁-土無單元劃分技術,在考慮了模型的邊界效應、樁基的水平動力特性和樁土界面的滑移、接觸非線性行為的基礎上,從時域內較為全面的研究了層狀土域中樁基上下部結構的慣性相互作用和運動相互作用兩種基本效應。In this article, a research on how the change of latitude and direction of a solar powered long endurance aircraft effect the received solar power was developed. and on the basis of the car air conditioning, the thermal properties of the single - effect lithium bromide absorption hot - coldwater unit and two - stage lithium bromide absorption hot - coldwater unit applied in car and driven by high temperature cooling fluid of the car engine are advanced and compared. the technique of energetic optimization is employed to investigate the optimal performance of an irreversible hybrid air - conditioning system consisting of a vapor compression refrigerator cascaded with a solar - driver absorption refrigerator
本文對太陽能飛機的飛行緯度和飛行方向對能夠獲得的太陽能輻射量的影響進行了研究,以及對應用於汽車空調的兩種溴化鋰製冷機組,即單效溴化鋰製冷機組和兩級溴化鋰製冷機組進行了熱力分析和研究,同時,結合太陽能集熱器作為整個製冷系統的熱源,對系統的最優綜合性能進行了分析和研究。The creep coefficient method and the time - stress equivalence principle are used to investigate the creep behavior of plastic geogrids
摘要運用蠕變系數法和時間應力等效原理分析塑料土工格柵的蠕變行為。It has been shown that in one - dimensional consolidation problem considering rheological characteristics of soil, there exists two consolidation degrees defined in different terms, i. e. up which is in terms of effective stress and us which is in terms of settlement. while up shows the rate of the dissipation of excess pore pressure ( or the increase of effective stress ), us indicates the rate of the development of the surface settlement of the system. and there exists significant difference in numerical value between up and us, especially for layered soils
分析研究表明:當考慮土的流變時,存在著兩種不同定義的平均固結度,即按有效應力定義的固結度u _ p和按沉降定義的固結度u _ s ,前者反映了地基中超靜孔壓的消散率(或有效應力的增長率) ,而後者反映的則是地基表面的沉降率,兩者在數值上有較大的差異,特別是對于成層地基。The dynamic characteristic of large - scale aqueduct is analyzed under four cases ( aqueduct without water, aqueduct with water in three troughs, aqueduct with water in the middle trough, aqueduct with water in side troughs ), and the results can be applied to seismic - resistance design of large - sc ale aqueduct. the earthquake time history response of large - scale aqueduct is studied under four cases when the el - centro earthquake wave is inputted. in the paper, base isolation technology is applied to avoid the destroy arising from the bigger stress in aqueduct
本文分4種工況(槽內無水、中槽過水、邊槽過水和三槽都過水)對該大型渡槽結構的動態特性進行分析,所得結果可為大型渡槽結構抗震設計提供依據;並在el - centro地震波激振下進行渡槽結構在這四種工況下的地震動力時程分析,計算給出了大型渡槽結構的地震反應規律;為了避免較大應力的出現對渡槽結構造成破壞,本文採取隔震措施來減小該結構的動力反應,並分析其隔震效果,提供設計參數,為工程設計提供依據。It indicts that, in the deep & thick soft ground improved by preloading or surcharge loading with sand drain partially penetrating, post - construction settlement mostly results from the dissipation of remained excess pore water pressure and the proportion of compress occurred in under - lying soft layer to total post - construction settlement is becoming larger with the time
而後,結合工程實例,分析了超載預壓時間、超載大小以及豎井處理深度對深厚軟土末打穿豎井地基有效應力面積比r的影響,探討用r作為深厚軟土未打穿豎井超載預壓地基卸載控制標準的可行性。The model consists of a stress analysis and a failure analysis. the types and extent of damage in the woven composites are predicted by a failure analysis which including a set of proposed failure criteria and material degradation models
提出了相應的應力分析模型、失效分析模型、失效準則、剛度折減模型,計算出載荷與時間的關系和最後的破壞載荷。分享友人