徑向主應力 的英文怎麼說
中文拼音 [jìngxiàngzhǔyīnglì]
徑向主應力
英文
radial principal stress-
In this paper, the rotating machinery at high speed is studied. there are discussed about numerical calculating methods for non - linear dynamical system, the rotor system radial impact and rubbing dynamics behavior analysis having the nonlinear rigidity on the unsteady and non - linear oil film, the rotor system dynamics behavior analysis with bending - torsional - pendular coupling vibrations, application of wavelet, fractal and network in fault diagnosis. the main works in this paper are as follows : ( 1 )
本文以高速旋轉機械為主要研究對象,系統、深入地研究了非線性動力學系統的數值計算方法、具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學行為、轉子彎扭擺耦合振動的動力學分析、小波和分形理論及人工神經網路在故障診斷中的應用問題。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle
研究了地球在日月引潮力和表面負荷作用下的形變特徵,數值計算結果表明,在固體內核中的形變很小,由於在長周期核模本徵頻率附近的共振,液核中低階( n 10 )位移隨半徑的變化非常復雜,當負荷階數超過10時,地核中的形變和擾動位都很小,地球的響應主要表現為彈性地幔中的徑向位移,且隨深度增加急劇減弱,地表負荷love數與信號頻率的依賴關系很弱,給出了體潮love數計算的一種有效的近似處理方案。To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press
靜壓傳動技術在各類工程機械中得到廣泛的應用,對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要,為了能直接對這種馬達進行壽命估計,並能在相同工況下求得壽命最長的軌道曲線,本文從設計等接觸應力內曲線的角度對這類馬達作探討性的研究,主要從以下四個方面進行: ( 1 )綜合考慮徑向柱塞式液壓馬達工作時的各種主要受力狀況,對柱塞組件進行受力分析,並通過模擬分析影響軌道和滾動體間正壓力的各個因素,得到正壓力的簡化表達式。Based on integration of " high yield & benefit and good grain quality of modeled cultivation of foodstuff crop ( rice ) and its consultation system ", this thesis sets it ultimate goal to deal with the knowledge discovery in the consultation system of simulation - optimization decision making in quality and high - yielding rice cultivation. after a close study of the features of the database in rice cultivation, this thesis introduces the system engineering theory of agent aralysing and designing and offers a practical new way to promote the intelligence of the knowledge discovery system in rice cultivation database, to improve the efficiency of data mining and the human - computer interactive ability to realize the integrated knowledge - based combination between human and computer or among the sub - systems
本文以廣西「糧食作物(水稻)兩高一優模式栽培技術集成與咨詢系統研究」為背景,以基於專家系統( es )的水稻優質高產栽培模擬優化決策咨詢系統的知識獲取問題為導向,針對水稻栽培數據庫的特點,從系統工程角度引入面向agent的分析與設計思想,提出一種用多agent從水稻栽培數據庫中發現知識的人機合作、半自動的知識獲取方法,實現利用多agent的自主性、反應性和社會性,提高水稻栽培數據庫知識發現系統的智能水平、數據挖掘效率和人機交互能力,實現人機之間、各子系統之間基於知識的柔性綜合集成,為水稻栽培知識發現提供了一條新的可行途徑。It emphasized that one organization can impel their member to work harder and more consciously by rebuilding organizational structure and redesigning the management process. this operation process includes person - work designing, work - team constructing and organization objective decomposing so on
結構性激勵模式的主要實現途徑是建立激勵性組織,激勵性組織因為整體上具有一種激勵特性,可以實現組織和成員的雙贏,應是所有組織努力的方向。The bottleneck problem that has long obstructed possible breakthroughs in chinese language teaching is that the established subject - object thinking pattern reduces the teaching process to teachers " one - way conveyance of knowledge, and further on makes it a lifeless monologue. this to a certain extent goes against the basic law of chinese language teaching
長期以來困擾語文教學取得突破性進展的瓶頸問題是:以主? ?客單一的思維模式把語文教學看作是教師單向的傳輸過程,從而導致語文教學呈現出死氣沉沉的獨語狀態,與本應充滿生命活力、其樂融融的語文教學的本真狀態大相徑庭,在一定程度上背離了語文教學的本質規律。The thesis analyze the relation between the human and the nature, productivity and relationship of the productivity, the relationship between of the human being and the society economy and the layer level of productivity and relationship of the productivity. and the thesis concludes the society is in the transition period of the material production and the spiritual production. and finally the thesis points out the characteristic of the society and the socialism in china, and point a finger on the principle, guideline and the general plan of the construction of the primary state of the socialism in china
本文主要的思想邏輯是:從分析馬克思關於人和社會的本質、本性入手,然後確認人的全面發展和人的解放為主題,再進一步論述生產勞動是人和社會的本質、本性的必然表現,又是人的全面發展和人的解放的必然形式和途徑;在分析人們的生產勞動中分析人與自然和生產力與生產關系的橫向結構、人和社會經濟形式以及生產力與生產關系內部層次的不同歷史形態的縱向過程,然後歸結到人口、物質、精神三種生產的共時性結構和歷史性過程,明確人類社會正處於物質生產時代與精神生產時代的過渡時期;最後根據人類所處的時代的特徵和中國社會主義社會的特點,指出中國社會主義初級階段建設應有的指導原則、基本指針和發展戰略。The conclusion is that sheering and radial stress are dominant in viscosity shearing force, and that reynolds stress is larger than viscosity stress in turbulent flow, and the multiple is the reynolds number
由分析可知在粘性應力中,切向和徑向剪切應力佔主導地位;而在湍流條件下,雷諾應力是粘性應力的若干倍數,此倍數在量級上即為雷諾數。1. under the same kind of wall rock and the same condition, displacement of pipe liner is symmetry, for tunnel structure and suffered load are symmetry. as level terra stress is bigger, the maximum of displacement and the first main stress occur in tie - in of pipe liner structure, and its direction is radial and points in hole ; the direction of the third main stress is annular and its maximum occurs in top and bottom hole inner
1 、同一類圍巖在同一種工況下,由於結構和荷載的對稱性,管片襯砌結構的位移也表現出對稱性,因水平向地應力較大,位移最大值、第一主應力的最大值發生在管片襯砌結構的接頭處,方向為徑向指向洞內;第三主應力的方向為環向,較大值發生在洞頂和洞底內側。Bm12 t is a kind of medium sized orbital riveting machine and driving by hydraulic. its adopted the advanced orbital technology, process by cold rolling. the ascend and descend of power by screw pole and it can control the rough adjust effectively, and micro - adjust by screw cap of power head, the center hole of bench are coaxial with the spindle, and it put the holder available
Bm12t是液壓類中型徑向鉚接機,該機應用有第五代擺輾鉚接技術外,同時採用絲桿升降式動力頭機頭部分不固定,臺面具有夾具梯形槽,工作臺中心孔徑與主軸軸線同軸,可用於夾具定位。M12t is the small - size orbit riveting machine of hydraulic pressure, and the plum blossom removing to apply to have international advanced orbit riveting technology, this machine has been enlarged the bench, and possesses t - slot of clamping apparatus, bench centre aperture and axis coaxial, and available fixes a position in the clamping apparatus
Jm12t是液壓類中型徑向臺式鉚接機,除應用有國際先進的11瓣梅花徑向鉚接技術外,同時採用絲桿升降式動力頭機頭部分不固定,臺面具有夾具梯形槽,工作臺中心孔徑與主軸軸線同軸,可用於夾具定位。Ports and depots / stations provide multifunctional logistics services, so logistics center pattern and voluntary chain patten should be their choice. transportation agencies have the advantage of wide and professional business network and good costumer relationship, therefore they can use virtual managing pattern or incomplete vertical integration pattern to develop the logistics services. multimodal transportation companies are the most competent ones, so conglomeration pattern and supply chain cooperation pattern should be the shortcut for them to get into the advanced developing stage
車船運輸企業的物流特徵表現在貨物的位移上,其物流經營應遵循基於縱向一體化的物流配送模式或供應商/分銷商合作模式;港站企業由於其吸引式的多功能物流服務,物流中心模式或特許連鎖經營模式應是其發展的主要選擇;運輸代理企業的優勢則在於廣泛、專業的業務網路和良好的客戶關系,因此虛擬經營或不完全縱向一體化模式是其首選;而綜合運輸企業是最具物流競爭力的一類運輸企業,走集團化或供應鏈合作的道路是其邁入物流發展高級階段的捷徑。It can be concluded that the performance differences between the plate membrane and the hollow fiber membrane can be attribute to difference of the stresses in the membranes when they were under pressure and the difference of the strain caused in the membrane, besides the possible reason that the surface curvature difference between a plate substrate and a hollow fiber one may cause structure difference in the dense functional layer when coating. the stresses in a hollow fiber composite membrane under an outside pressure are quite different from that in a plate one in that they exert on the hollow fiber in both the radial and circular directions, and the compress strain of the hollow fiber is thus much more complex, which may cause the top layer crinkle and a decreased salt rejection
分析認為造成平板復合膜( )和中空纖維復合膜( )性能差異的主要原因,除了平板基膜與中空纖維基膜因表面曲率不同可能引起在塗覆時形成的緻密功能層結構上的差異之外,由於中空纖維膜受外壓時,膜內部承受的應力形式與平板膜不同,會同時在徑向(膜厚度方向)和環向(膜面內方向)兩個方向產生壓應力,因此,所發生的形變也較為復雜,可能造成表面復合層的起皺或脫落,引起脫鹽率下降。From the demonstration point of view, after analyzing the problems of consumer electronic industry in the slow increasing stage, this paper points out that there are many restricting factors for development of consumer electronic industry. of them, the main factors are the lag of the system reform, the same industry structure everywhere, no formed core technology and short of being supported by advanced correlation industries. on this base, integrating formula research, bringing forward and building complete diamond system is the direction of industry development
本文主要從實證的角度,在對進入慢速增長期的家電行業所遇到的問題進行分析后,認為:我國家電行業的發展受到了多種因素的制約,其中主要的因素有:體制改革的滯后、各地產業同構嚴重、核心技術尚未形成和缺乏先進的相關產業支持,在此基礎之上,結合規范研究,提出形成完整的鉆石體系是行業發展的方向,提高企業的戰略管理素質,力爭走上國際oem模式,是企業積極參與國際競爭,應對未來問題的一個有效途徑。It has the advanced radial technology that the movement path resembles 11 pieces plum blossom s shape. the handle makes the power head ascend and descend easily and t - slot on the bench are fixes the clamping tool available. the center hole on the bench is coaxial with the riveting spindle and it can put the jig on it at the accurate position
Jm12tq是汽動類中型徑向臺式鉚接機,除應用有國際先進的11瓣梅花徑向鉚接技術外,同時採用絲桿升降式動力頭機頭部分不固定,臺面具有夾具梯形槽,工作臺中心孔徑與主軸軸線同軸,可用於夾具定位。The soil ' s stress path has important effects on the retaining wall ' s lateral deformation and the soil ' s deformation during the excavation of foundation pit. an experiment simulating the soil ' s stress path behind the wall has been carried out with the stress - controlled triaxial instrument. the principle stress ratio keeps constant during consolidation and the soil samples are permitted to drain during unloading process
利用應力式三軸儀對基坑開挖過程中圍護結構后側土體變形影響較大的因素:土體的應力路徑進行了試驗模擬,試驗是在等主應力比固結后側向卸荷而軸壓不變的排水情況下進行的。The ways to promote the response ability of villages and towns government are mainly : compartmentalizing the obligation and right of different levels government ; grasping the direction of response ; changing the function of villages and towns government ; building up right response mechanism of villages and towns government and make scientific performance evaluation to the response of villages and towns government
提升鄉鎮政府回應能力的路徑主要有合理劃分各級政府的事權;把握好回應指向;轉變鄉鎮政府職能;建立健全鄉鎮政府回應機制和注重對鄉鎮政府回應進行科學的績效評估等。Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are
其次,我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動,主要結論如下:影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數;耦合系數越大,軸向應力、軸向力以及軸向彎矩越小。Secondly author calculates and analyses normal stress and shear stress of the girder for a assembling post - tensioned concrete skew girder bridge with a span of 40 m due to the actions of the dead load, temperature changes, shrinkage and creep of concrete and live loads, and calculates and analyses normal stress and shear stress of diaphragms due to the actions of the subordinate phase dead load, temperature changes, shrinkage and creep of concrete and live loads
其次重點對跨徑為40m標準設計的裝配式后張預應力混凝土斜梁橋在恆載、溫度變化、混凝土收縮和徐變、活載作用下主梁的正應力、豎向變形和恆載、活載作用下主梁的剪應力進行計算分析。計算分析橫隔板在二期恆載、溫度變化、混凝土收縮、活載作用下的正應力、剪應力。分享友人