滑動反力 的英文怎麼說

中文拼音 [dòngfǎn]
滑動反力 英文
sliding reaction
  • : Ⅰ形容詞1 (光滑; 滑溜) slippery; smooth 2 (油滑; 狡詐) cunning; crafty; slippery Ⅱ動詞(貼著物...
  • : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
  • : 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...
  • 滑動 : slither; slippage; slipping; slide; sliding; run; sliding movement [motion]; glide; slump滑動閘門...
  1. So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys

    本文利用對摩擦和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震應。同時,文中從研究單質點結構的慣性入手,進而對多質點結構體系應進行探討,分別給出了結構隔震的自身穩定條件。最後,本文利用ansys對基礎固定和基礎移隔震兩種工況進行了模擬模擬分析,進一步證實了基礎移隔規律。
  2. Apply computer chip to control the circuit ; omron opto - elecrtonic control - ler and panasonic and mitsubishi inverter have stable performance, high precision, rapid reaction and long life - span ; the controlling plate applies tactile operation board which is handled easily ; vertical structural screen is easy to adjust the vertical printing pressure so as to ensure the quality of printing ; the frame lift is driven by electrical motor and installed with imported linear guide rails, of which the speed - adjust device, scraper and scraping blade can be adjusted within15 to 45 and can be set for many times so as to repeatedly printing with good precision and output, the flat bed is made of 2mm stain - less steel plates which are flat, smooth and indeformable ; it is also equiped with micromatic setting device in order to ensure the precision of multi - color overprint and auto air - intake device to ensure strong adsorption

    採用電腦板控制電路,歐姆龍光電控制器,松下,三菱變頻器,行直穩定.精度高,應快,壽命長,控制面板採用觸摸式操作面板,操作方便,六式結構型網版垂直升降印刷壓可調保證印刷質量,機架升降採用電機驅安裝進口直線導軌,刮刀、回墨刀可在15一45角調整,可設置多次,重復印刷保證產品精度.平臺板採用2毫米不銹鋼板製作,平整光不變形配有微調裝置,確保多色套印精度,配自吸氣裝置,確保強有的吸附。
  3. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦隨上部結構荷載變化的規律; (二)通過單柱承載試驗,測定了古建築中木柱的受變形特徵、破壞模式、及模型材料的變形模量、極限承載、極限變形等參量; (三)通過柱架低周復荷載試驗,測定了柱架的抗側移剛度、柱架恢復特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載和極限變形、及榫卯減振參數; (四)通過斗?低周復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復特性及滯回曲線,斗?抗壓極限承載及受變形規律; (五)通過抬梁式殿堂間架模型振臺試驗,測定了殿堂木構架結構自振周期,地震應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震應採用多點同步測量,對柱根移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  4. Nevertheless, in these approaches the contact intethee are charactered sboly ed stiffeess k. and k. " which is not perfect and rigorous in thc vitw of solid mechanics and rather rough for the description of the behavior of the idtfores. in collbet, taken as a contact problem, the principal chatrs of the idtcthees can be reflected : ( l ) the cbntact inifore is of shear strength which implies tha a generic pair of contact points on the inidse will displace coincidentally if the tangential fbrce at this point has not reahed the 1imit resistance, else, relative s1ide betwee the points will occur along the tangental direction. ( 2 ) no matter the relative slide occurs or not, the contact bodies cannot invade each other in any wise

    本論文在對這兩種方法進行認真的分析后,說明它們對不連續面的描述並不合理,也無法映出不連續面的主要學特性,同時指出,將帶有不連續面的巖土工程問題作為接觸問題計算更為合理,它可將不連續面受變形的主要特點映出來,即: ( 1 )接觸面具有相應的「抗剪強度」 ,即當接觸面上某一點處的切向應小於該點處的抵抗強度時,點對共同變形;達到強度時,則沿切向發生相對; ( 2 )在整個變形過程中,發生接觸的變形體不能相互侵入。
  5. Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability

    闡述了鍍液中各組分的作用:絡合劑能有效地改變銅、錫的電位,促使初期的置換應順利進行;還原劑能加快化學應速度,對學有積極的促進作用;抗氧化劑能有效地防止鍍液中sn ~ ( 2 + )的氧化;添加劑a能提高鍍液的穩定性,添加劑b對鍍層能有細化和光亮作用,擴大了鍍層光亮區的范圍;添加劑c作為平劑,不僅能增強鍍層表面的平整性,而且能提高鍍液的分散能;表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題,提高了鍍層的表面質量和鍍液的穩定性。
  6. The ultra amusing ultra q remote control sweeps clear the vehicle, 1 to 8 proportions, 8 channels entire directions remote control, when advance backlash on the automobile body work lantern festival glitters, is concurrent music, the careful design remote control conforms to the kinesiology, the unique double throwout lever remote control way, on about remote control two throwout levers each control two powers wheels, slightly cause the vehicle the radius of turn to be more nimble, and marches forward when the vehicle simultaneously opens sweeps the plate to sweep clear and to turn fights controls remotely into the reality, sweeps the plate starts when also can send out delightful music, sweeps the plate also to be able control during rotation rocks, behind in the automobile body work theater box puts has continuously may skid and may open the cover the trash can, the trash can also may take out, turns fights may independently control remotely, the handling room vehicle door may start, the remote control is away from in the city surpasses 30 meters, the spacious area may achieve above 50 meters, holds controls nimbly is convenient, the luminous automobile body paint surface, works first - class, the use industry packs the ni - cd battery to take the power supply, may repeatedly charge 300 above time

    超好玩超q的遙控清掃車, 1比8比例, 8通道全方向遙控,前進後退時車身上的工作燈會閃爍,並發出音樂聲,精心設計的遙控器符合人體工學,獨特的雙推桿遙控方式,遙控器上的兩個推桿各控制左右兩個輪,使得車的轉彎半徑更小更靈活,並且在車行進時同時開啟掃盤清掃和翻斗遙控成為現實,掃盤啟時也會發出悅耳的音樂聲,掃盤在轉的同時還會左右晃,車身後部的工作廂內放有一直可並可開啟蓋子的垃圾桶,垃圾桶還可以取出,翻斗可以獨立遙控,操作室車門可開,遙控距離在城市中超過30米,空曠地區更可達到50米以上,操控靈活方便,光亮的車身漆面,做工一流,使用工業包裝ni - cd電池組作為源,可復充電300次以上。
  7. In order to develop and consummate the analysis theory and calculation method of base - isolated structures, based on the research on restoring force model of isolation systems and the analysis on the nonlinear seismic response of base - isolated structures, the analysis on multi - dimensional and lateral - torsional coupled seismic response of base - isolated structures is developed in this paper. according to the mechanical performance of isolation systems, detailed analysis and improvement of the present research, an unilateral and a bilateral coupled visco - elastic hysteretic model for rubber bearings, an unilateral and a bilateral coupled visco - elasto - plastic differential hysteretic model for lead rubber bearings, an unilateral and a bilateral coupled modified visco - plastic differential hysteretic model for sliding friction bearings are proposed

    為進一步發展和完善基礎隔震結構分析理論和計算方法,本文以隔震系統恢復模型研究及基礎隔震結構非線性地震應分析為基礎,對基礎隔震結構的多維地震應及平?扭耦聯地震應開展了以下幾方面的研究工作:根據隔震系統學性能的特點,在現有研究成果的基礎上,對隔震系統恢復計算模型進行了改進和創新,提出了普通疊層橡膠支座單向及雙向耦合粘彈性恢復計算模型,鉛芯疊層橡膠支座單向及雙向耦合粘彈塑性微分型恢復計算模型,摩擦支座單向及雙向耦合修正粘塑性微分型恢復計算模型。
  8. Copper - nanosized tibi composites were prepared by in - situ process. the microstructure, mechanical and electrical properties, and dry sliding wear behavior and electric sliding wear of cu - nanosized tib _ 2 in - situ composites was investigated ; mostly task as follows : the thermodynamic data for the reactions between b and ti in the molten liquid of copper were analyzed, the copper matrix composites reinforced by in - situ tibi nanoparticles were prepared by reactions of 8263, carbon and titanium in copper - titanium melt, and copper - titanium, copper - boron in alloy melt, respectively, which controlled the reaction temperature, reaction time and solidification process. the rnicrostructure and mechanical and electrical properties of the in - situ composites were investigated by using optics microscope, tem and xrd

    本文採用原位應法制備了cu -納米tib _ 2原位復合材料,在此基礎上分析了原位復合材料的微結構,進行了干摩擦磨損和電接觸磨損實驗,完成的主要工作如下:從熱學的角度出發,分析了陶瓷tib _ 2顆粒在銅基體中原位生成的熱學條件,並用電解銅、工業純鈦、 b _ 2o _ 3 、 c (還原劑)以及cu - ti 、 cu - b等合金為原料,通過控制適當的應溫度、應時間和快速凝固等工藝手段,制備了cu -納米tib2原位復合材料。
  9. With the development of automobile industry and road transportation , the traffic accidents happen every day in the world and become a serious society problem the vehicle collision accidents are over 2 / 3 times as much as all traffic accidents they cause a large amount of social infuence and serious economic loss therefore , it is urgent to study vehicle collision accidents comprehensively and systematically , and the research also is the academic foundation to analyze and deal with traffic accident it is difficult to authenticate car velocity after traffic accident to dig over locate witness is right way mechanics is avaid tool in this field it is important to establish math model and this is precondition to calculate vehicle velocity firstly on the basis of summarizing the research results , this paper deeply discusses the calculating model to analyze the instantaneous motion state in the vehicle collision, the interrelation among the every moving mechanics parameters in the every phase of the collision secondly , according to the collinear collision and two - dimension collision and the restitution coefficient , the paper estabishesthe post collision movement models it proves that these models are correct and valid thirdly , this paper try to research reconstruction of road traffic accident and put forward the method on it

    對交通事故的科學分析應是建立在正確的數學模型與計算機模擬技術基礎上的定量分析,其基本條件就是要有能正確描述事故過程中汽車狀態的數學模型,只有建立正確的數學模型,才能較準確地推定事故車輛的碰撞速度。所以建立正確地車輛碰撞模型和運模型正是汽車事故再現的關鍵問題。本文首先在總結前人研究的基礎上,深入地研究汽車碰撞理論,分析了車對車碰撞作用瞬間狀態的計算模型及碰撞恢復系數與碰撞前、后速度的關系;其次,根據交通事故中最普遍的一維和二維碰撞的不同情況,採用恢復系數和摩擦系數等概念,分別建立了碰撞后車輛學模型;第三,對汽車碰撞事故再現進行了初步研究,確定了車對車碰撞事故模擬計算和推計算方法,並給出相應的模擬程序流程圖。
  10. The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it

    結果表明:南天山東段中強震震源斷錯以傾逆斷為主,主壓應p軸由西到東呈扇形分佈;相距較近的庫車與拜城地區地震活存在較大差異,但均存在明顯的成叢性分佈特點;拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂,小震群活則可能映了局部中強震對周圍次級小構造的影響。
  11. In order to analysis the contact problem between elasticity roller and rigid plane, another iterative process is raised. supposing the right contact point has been known, the left contact point has to be found and the distribution of stick zone and slip one have to be determined in each iterative process. the outer load is evaluated according to the solved force distribution in contact zone

    針對彈性滾柱與剛性平面的穩態滾接觸問題,採用已知接觸區右端點來搜索接觸區左端點以及區內粘連區、移區分佈的迭代搜索方法,並根據搜索得到的接觸區內分佈壓求出外部載荷。
  12. In this dissertation, the development survey, research actualities and application prospect of vamt are introduced at first, and the models of kinematics, dynamics and linear motor servo are analyzed then. currently the dynamics model is complex or established mechanically, which restricts the study of control theories. thus this dissertation present a simple and easy - realized control idea, namely, the fore and torque of every leg determined by the inverse - solution of mechanics are regarded as changeable load force ( disturbance ) applied in motor, the elongation of the leg or displacement of sliding is regarded as the output of linear servo system

    本文首先介紹了虛擬軸機床的發展概況、研究現狀和應用前景,然後對其運學、學、直線伺服系統模型進行分析,針對目前學模型過于復雜或完全從機構學角度建立不便於控制的問題,提出了簡單、易於實現的控制思想,即將虛擬軸機床的學方程解所確定的各桿受(矩)視為電機的可變負載,以桿長伸縮量或塊位移為伺服系統輸出,從此構成位置閉壞,實現軌跡跟蹤控制。
  13. The models are obtained by simulating and simplifying the big curve at the arch of aorta and opposite curve of branching vessels. the original conditions of simulation calculating are the entrance velocities and the exit pressures. the boundary conditions are the wall non - slippery flow conditions and the symmetry conditions

    它是基於主脈弓處的大彎曲和分叉血管的彎曲進行模擬簡化,模擬計算的初始條件是進口速度和出口壓,邊界條件是壁面無流條件和對稱性條件。
  14. The control theory of chaotic dynamical system mainly contain learning control with distal teacher, adaptive state feedback control, sliding - mode synchronous control and passive equivalence control, with which we can realize the stable control of chaotic system

    針對連續混沌學系統,採用遠程學習控制、自適應狀態饋控制和模態同步控制以及等效無源控制等控制策略,實現連續混沌學系統的快速穩定。
  15. 3. sliding bearing and isolation cover are the key parts which influence magnetic force pumps " safely running, pump ' s interior pressure and cooling holes are induced through analyzing outer and inside alnicos, sliding bearings " cooling flux

    軸承和隔離套是影響磁泵可靠性的關鍵部件,通過分析冷卻內外磁鋼和軸承的冷卻流量,推計算出泵內壓場,給出冷卻孔設計的方法。
  16. On the basis of displacement - time series of the slope, a nonlinear dynamic model is set up according to backus generalized linear inversion theory in this paper. due to the equivalence beween autonomous gradient system and catastrophe model, a standard cusp catastrophe model can be obtained through variable substitution. the method is used in analysis of displacement data of huangci landslide and wolongsi landslide and in understanding how slopes evolve before sliding. the result shows that the nonlinear dynamic model can make satisfactory prediction result. is it most important that there is a sudden fall of d, which indicates the occurrence of catastrophe ( when d = 0 )

    研究表明,坡變形失穩過程具有混沌和分維特性,可以用分形理論來研究坡預測問題,基於對任一連續函數,至少在較小的鄰域內可以用多項式任意逼近的數學理論,運用改進的backus廣義線性演理論,以斜坡位移時間序列為基礎,演了斜坡演化的非線性學模型。並利用自治梯度系統與突變模型的等價性,通過變量代換得到標準的尖點突變模型。
  17. The fem results indicated that as to the rough surfaces in sliding contact, the value of the contact pressure was very high which coursed a high value of the heat flow rate, meanwhile the sliding time was not enough for the frictional heat to transfer, thus the highest value of the body temperature occurred just on the sliding surfaces, which possessed a sharp thermal gradient in direction perpendicular to the sliding surface. so the great thermal stress was caused just by the sharp gradient and the thermal elastic distortion with which the contact pressure changed occurred simultaneously, thus this change of the contact pressure would affect the temperature distribution in return

    對于相對的粗糙表面,因實際接觸面積小而導致接觸壓很大,這樣使得熱流密度會很大,同時由於時間很短,熱來不及傳導,最高溫度發生在摩擦表面,在垂直於摩擦面的方向有很大的溫度梯度,使得熱應很大,且最大應發生在表面,同時產生熱彈性變形,這種變形使得接觸區域內的壓分佈發生變化,這種變化又過來影響了接觸區域的溫度分佈。
  18. On the basis of these conclusions, the stability of natural 2 # landslide body of hongjiadu hydraulic power plant is analyzed with this finite element iteration method and the uniform value off on the sliding surface of the landslide body is inversed. meanwhile, the stability of scaled 2 # landslide body of hongjiadu hydraulic power plant is analyzed and downslide force of scaled 2 # landslide body and normal stress and shear stress on the sliding surface are obtained. in addition, the results provide a reference for reinforcing structure ' s layout

    在此基礎上,文中用該方法對天然狀態的洪家渡水電站2 #塌體進行了穩定分析,演了塌面上均化的f值,對部分削坡后的洪家渡水電站2 #塌體進行了穩定分析,獲得了部分削坡后塌體的下面上的正、剪應分佈,為加固結構布置提供了依據。
  19. The model can reflect the multi - sets feature of the rock masses in practice, consider the influence of the joint orientation and strength to the rock masses deformation feature, and simulate the simultaneous sliding, tension and close behaviors of the multi - sets jointed rock masses extending the joint surface, and reflect the plastic deformation induced the rotation of the principle stress axes. the result can be extended to fractured rock masses with arbitrary set joints

    該模型能映實際工程中巖體的成組節理特性,考慮節理產狀和強度對巖體變形特性的影響,可用來模擬巖體中多組節理同時存在、張開、閉合的行為,並能應由於應主軸旋轉所產生的塑性變形的影響。
  20. In contrast, taken as a contact problem, the principal characters of the interfaces can be reflected : ( 1 ) the contact interface is of shear strength which implies that a generic pair of contact points on the interface will displace coincidentally if the tangential force at this point has not reached the limit resistance, else, relative slide between the points will occur along the tangential direction. ( 2 ) no matter the relative slide occurs or not, the contact bodies cannot invade each other in any wise

    同時指出,將樁土相互作用按接觸問題來處理,可以更好地映出該接觸面的主要學特徵,即: ( 1 )接觸面具有相應的「抗剪強度」 ,即當接觸面上的某一點處的切向應小於該點處的抗剪強度時,該處樁土共同變形;達到其抗剪強度時,則沿切向發生; ( 2 )在整個變形過程中,樁與土不能互相侵入。
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