vibration table 中文意思是什麼
vibration table
解釋
振動試驗臺-
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。 -
Usually, there are three kinds of vibration table - mechanical vibration table, hydraulic vibration table and electronic vibration table
通常使用的振動臺有機械式振動臺、液壓式振動臺和電動式振動臺三種振動臺。 -
( 3 ) in order to prove multi - point exciting experiment good, we employ traditional ergography ( hammering method ) to make experiment, peak value pick - up method to modal identification, and compare identification result by hammering method with vibration table experiment. the result revel that vibration table experiment can obtain larger energy and more adequately excite
在重頻、密頻時、在試驗試件的結構巨大，需要大的能量激勵才能充分激出完全模態時、在一激勵點為某階感興趣模態的節點時，都需要用多點激勵的方法。 -
In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project
在動態數值分析中，針對世紀塔變截面的塔身，曲線軸線的拱以及柔性拉索相互耦合時清況，建立兩種有限元計算模式，利用有限元軟體algorfeas得到動力數值分析的結果，如：自振頻率、振型、動位移、動應力等等，再和振動臺試驗研究成果作比較，得到一些重要的結論，從而為南京世紀塔工程的設計和施工提供強有力的依據，而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。 -
Vibration test table
振動試驗臺 -
The dropping test table, high temperature test cabinet, vibration test table and impacting table, which can simulate many dynamic test of frequency of 5 60hzdisplacement and amplitude of 5 mm
100 %等多種溫度條件，跌落試驗臺高溫試驗箱振動試驗臺沖擊試驗臺等均有中國國營西北機械廠生產，可模擬頻率5 -
Vibration table is a kind of standard experiment equipment which is used to provide classical vibration conditions, simulate and reappear the environment, test and evaluate the mechanical function of all kinds of engineering equipment
振動臺是一種在實驗室內提供典型振動條件或模擬再現環境、用以檢驗和評價各類工程裝置及設備機械力學性能的標準試驗設備。 -
Study of armature correction system of electrical vibration table with high - linear - acceleration
離心力場下電動振動臺及動圈糾偏系統動特性的研究 -
Consider to simplifying the process of calibrating dynamic error parameters of accelerometer and shortening the time of calibrating test, all dynamic error parameters are calibrated at one - time, based on the mathematic model of dynamic error of accelerometer and integrating the model and the testing theory of the three - axis turntable, meanwhile, the angle - vibration table is avoided
摘要為了簡化加速度計動態誤差系數的標定過程，縮短標定試驗時間，在建立加速度計動態誤差數學模型的基礎上，結合三軸轉臺模型及測試原理，一次性標定出加速度計動態誤差系數，同時避免了角振動臺的使用。 -
Based on the shaking table test of 1 / 4 scale two - bay rc frame modes strengthened with and without cfrp ( carbon fiber - reinforced plastic ), damaged and destroyed model strengthened with cfrp, the vibration properties and seismic response and destroying position of rc frame model with cfrp are analyzed
摘要通過對兩個縮尺比為1 / 4的兩層單跨鋼筋混凝土框架結構模型的加固、未加固及其震壞后再加固的3次振動臺對比試驗，探討了其動力特性、地震反應和損傷破壞情況。 -
Theoretical analysis and simulation experiment showed that this kind of controller can improve the dynamic characteristic of the positioning table with a short setting time, little overshoot and a fast dynamic response, and can also restrain disturbance and high frequency vibration
理論分析和模擬實驗證明，該控制器能較好地改善此類平臺的動態特性，具有調節時間短、無超調和動態響應準確快速等優點，並能夠有效提高系統的杭干擾和高頻振動能力，所得結論對此類平臺控制器的設計具有一定指導意義。 -
( 2 ) in order to verify derivation equation and corresponding code effectiveness, four - point exciting experiment of plate structure is set up by applying vibration table, then part correlation data is obtained
（ 2 ）對板結構做試驗驗證推導公式的有效性，應用振動臺採取4點激振試驗，並且獲得部分相關的輸入數據。 -
To compare with the results of the testing, acceleration time - histories outputted from table - board of vibration table
為了與試驗結果進行比較，有限元計算時採用振動臺臺面輸出加速度時程作為計算模型輸人地震動加速度時程。 -
At last of the paper, build the test table of the high speed bearing. test and collect the data of temperature and vibration of the bearing in high speed
本文最後通過試驗研究的方法對軸承在不同轉速、不同工作載荷下的工作溫度和軸系振動進行了測量和分析。 -
The dissertation is finished based on the fund 211 project " seismic simulation shaking table " of civil engineering structure vibration center
本課題來源於211項目「土木工程結構振動中心?地震模擬震動臺」 。 -
In view of this, the mathematical model of seismic simulation shaking table is deduced based on analyzing constitutes and mechanism of the seismic simulation shaking table in the civil engineering structure vibration center of wuhan university of technology
鑒於此，在分析電液伺服地震模擬振動臺的設備構成及其物理機理基礎上，針對武漢理工大學土木工程結構振動中心的地震模擬震動臺，推導出了電液伺服地震模擬振動臺的數學模型。 -
The modal analysis of the model is done by using the software - ansys. the first ten natural frequencies and vibration modes of swing movable teeth reducer are obtained. the transmission efficiency experiment table of swing movable teeth reducer is designed
把該有限元分析模型輸入到大型有限元分析軟體ansys中，選用合適的計算、處理方法對摘要其進行了模態分析，得到了該減速器的前十階固有頻率和振型。 -
The chief disturbances are the ripple of direct current power supply to scan pzt, resonant box effect of usual optical table using to weaken the environmental vibration disturbances, and the effect of air flow
主要干擾為掃描pzt直流電源的波紋系數、減震光學平臺的共振箱作用以及氣流的影響。尤以共振箱影響最大。 -
An approach has been made upon problems of tuning natural frequency of variable stiffness elastic support of 3d vibration strengthening polishing vibration table
對三維強化、拋光振動臺變剛度彈性支承調諧固頻的問題進行了探討。 -
In chapter three, the importance of maintaining the equal optical path between measuring beam and reference beam in measuring horizontal and vertical vibration table are analyzed, and the factors having effect on contrast degree of interference fringe are introduced. for improving the accuracy of laser - vibration - measuring - system, the phase - modulation - multi - period - average method and the vibration isolated of system are analyzed
第三章分析了光路設計中的等光程問題的重要性，以及影響干涉條紋對比度的相關因素；並從提高測量精度的角度分析了調相多周期平均法和系統的隔振。
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