摩擦減震 的英文怎麼說
中文拼音 [mócājiǎnzhèn]
摩擦減震
英文
damping by friction-
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力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反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?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。The results of test and theoretical calculation indicate that the friction device does not slide under minute earthquake, thus the control effort of f - ved corresponds with ved, and the action of frd is the same as pure brace. when disastrous earthquake occurs, the viscoelastic material reaches its shear limits and the friction device begins to slide, so the control effort of f - ved is the best
試驗結果和理論計算結果表明，在多遇地震下摩擦機構不起滑，粘彈性-摩擦阻尼器的減振效果和純粘彈性阻尼器相當，而摩擦阻尼器的作用相當于純支撐；在罕遇地震下粘彈性材料達到剪切極限，摩擦機構起滑，故粘彈性-摩擦阻尼器的減振效果最好。Compared the results of fea and the data of experiment, we can analyse that the distributing of the seismic stress of polymer - geogrid reinforced material is similar to that of the static stress, but the stress values of them is different ; the seismic similar friction coefficient between the earth and reinforced material fall with the increasing of earthquake acceleration, model acceleration respond along the height of the model, etc. thirdly, according to the comparison and analysis of the model seismic fea results and model experiment data, we can find the polymer - geogrid reinforced earth seismic fea is reasonable, which is composed by earth element, contact element and reinforced material element
通過對比有限元計算結果和試驗數據，分析得出塑料土工格柵筋材的最大動拉應力的分佈與靜拉應力的分佈沿筋材的埋深大致相同，只是應力的值大小不同；地震作用下土筋間的動似摩擦系數是隨地震加速度的增加而減小；模型沿墻高方向的加速度響應等。接著，根據模型動力有限元時程分析結果和模型試驗數據的比較分析，得出由土體單元、接觸單元和筋材單元組合的塑料土工格柵加筋土非線性動力有限元分析模式的合理性。The idea of passive control is to utilize additional facility within a structure to dissipate or absorb a large portion of the seismic energy, which has been applied to practical engineering extensively since its control devices - dampers are convenient and it does not need large energy supply and the structural system identification. now the main devices which have been developed in the passive control may be grouped into the following types : viscous, visco - elastic, metallic and frictional, and tuned mass damper ( tmd ) and tuned liquid damper ( tld )
被動控制通過附加阻尼裝置耗散或吸收大部分的地震動能量以達到減振的目的，由於其控制裝置簡單，不需要外界能源輸入和系統識別，容易在工程上實現並已得到廣泛的應用；目前被應用於結構被動控制的阻尼器主要有：粘滯型、粘彈型、摩擦型、調諧質量阻尼器（ tmd ）和調諧液體阻尼器（ tld ） 。Analysis of the inter - velution ship and its influence factor between loess landslide slope failure and charecterisitics of soil and rock mass show that the range of landslide slope failure enlarges with the development of earthquake intensity, coeffient of pore pressure and cohession. it delarges with the development of angle of internal friction ; use simplicity bishop method and computer to get simplicitely and quickly usable stability anlytic figures and data table
分析黃土滑坡與巖性的內在關系及其影響因素表明，滑坡范圍隨地震烈度、孔隙水壓力系數、粘聚力的增大而增大，隨土體內摩擦角的增大而減小;採用簡化畢消普法，藉助計算機，獲得了簡捷明快、使用方便的穩定分析圖表。Special - shaped column frame, its seismic behavior is studied and a new dissipating - seismic - energy structure, r. c. special - shaped column frame with viscoelastic friction damper ( f - ved ) is proposed and studied. a three - dimension solid element model is established for a special - shaped column frame to study its seismic behavior and time history responses under earthquake, some conclusion is drawn about its characteristics of force and displacement under horizontal earthquake action
為了進一步推廣和擴大異型柱框架結構的應用范圍，本文對異型柱框架結構在水平地震作用下的受力特點和抗震性能進行了研究，並提出在異型柱框架中設置粘彈性?摩擦阻尼器（ viscoelastic - frictiondamper ，簡稱f - ved ） ，對其進行了水平地震作用下的減震控制研究。The titanium alloy valve is more superior than ordinary steel valve in lighter, smaller expansion coefficient, improves the tightness in inletting and exhausting, helps in complete combustion, and at the same time reduces noise, friction, oil consumption, vibration, and gas waste
鈦合金汽門比一般鋼閥材質的產品更輕化、膨脹系數小，于進、排氣時可提升它的氣密動作，幫助完全燃燒，同時減少噪音、摩擦、油耗、震動及廢氣。By friction of liquids
液體摩擦減震氣管阻焰器Ustable friction damper
可調摩擦減震器On the basis of the wide investigation of the achievement home and abroad about the friction energy dissipation frame, this dissertation has completed a whole research process - from time - history response analysis of the structure with friction energy dissipation, to the theoretical research on the frame with friction energy dissipation, up to application of friction energy dissipation in structural seismic
本文在廣泛調研國內外對摩擦耗能框架結構的研究成果基礎上，從摩擦耗能框架動力時程分析的研究出發，逐步深入開展對摩擦耗能框架結構的理論研究，進而探討摩擦耗能減震技術在結構抗震加固中應用的設計方法。Fluid dynamic bearing technology - less friction means more reliability ; less heat, vibration, and noise
-液體動態方位fdb科技-減少摩擦力代表更可靠更少熱力震動，及嘈音。By ansys finite element program the seismic response of a five - story frame structure with friction dissipating braces is analyzed, and is compared with that of the pure frame structure without brace and the brace frame structure without friction dissipation devices
選取一五層框架作為算例，利用ansys程序，對摩擦耗能支撐框架、無支撐框架和普通支撐框架的地震反應進行了計算比較，分析了摩擦耗能支撐的減震效果。In the paper, friction energy dissipation is discussed mainly. using nonlinear spring element and combination element, the finite element model of friction energy dissipating brace frame is established
本文針對摩擦耗能這一減震形式進行討論，採用非線性彈簧單元、組合單元建立摩擦耗能支撐框架結構的有限元模型。Moreover, the influence of parameters, such as bracing stiffness, yielding displacement of the dissipater and different distribution of dissipating braces on the suppressive effectiveness of structure vibration is studied and some referential suggestion is presented for the design of passive energy dissipation system
此外，本文還對耗能支撐減震參數（斜撐剛度、耗能器屈服位移）的改變以及耗能支撐的不同布置方式對結構減震效果的影響進行了分析，為摩擦耗能支撐框架的設計提供一些參考性建議。A cushioning device, such as a bundle of rope or a piece of timber, used on the side of a vessel or dock to absorb impact or friction
緩沖裝置一種減小震動或沖撞力的裝置，如一捆繩子或一塊木頭，用在船或船塢的側面以承受撞擊或摩擦力The results show that the friction energy dissipating brace has obviously seismic vibrat ion - suppressed effect, and decreases maximum response of structure sharply when earthquake occurs, and dissipates a great deal of earthquake input energy
結果表明：摩擦耗能支撐具有明顯的減震效果，它大大降低了地震作用下結構的峰值反應，有效地消耗了地震能量。( 3 ) the sma incorporated friction damper is applied to long - span canopy roof structures to investigate its vibration control performance. the control effectiveness is analyzed with inputting three - dimensional el - centro earthquake waves in small, medium and large seismic intensity. the results show that control performance of the sma incorporated friction damper is superior to that of both the friction damper and the sma damper
通過輸入三向el - centro地震波，分別研究了結構在小震、中震和大震情況下的減振性能，並與結構在純摩擦阻尼器、僅sma阻尼器的控制效果進行了對比分析，表明sma復合摩擦阻尼器具有卓越的耗能減振性能。分享友人