振動阻尼 的英文怎麼說
中文拼音 [zhèndòngzǔní]
振動阻尼
英文
absorption of vibration-
Damping wakes possible finite steady-state vibration amplitude at resonance.
在共振時，阻尼可能限制穩定振動的振幅。Bifilar vibration absorber
雙線振動阻尼器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。In the semi - active damper of high - speed train, piston ' s velocity should be measured conveniency and accurately for succeeding in calculoting and adjusting the damp parameter
摘要基於天棚原理的高速列車半主動減振器中，為實現對實際安裝減振器阻尼系數的計算和調整，需方便、準確地測量活塞運動速度。Active damping suspension systems have been one of the major trends in the recent development of suspension systems. this paper reports a study on the active damping suspension system to reduce vehicle vibration
主動阻尼懸架技術是當今車輛懸架技術發展的趨勢之一，本論文從汽車振動力學的角度對車輛懸架進行了研究。Tang yong - jie ， yan li - tang ， hu xuan - li ， et al. research on piezoelectric damping technology in structural vibration : ( 2 ) piezoelectric active damping technology j. piezoelectics & acoustooptics ， 1996 ， 18 ( 1 ) : 2831
唐永傑，晏礪堂，胡選利，等.結構振動控制中壓電阻尼技術研究： （二）壓電主動阻尼技術j ] .壓電與聲光， 1996 ， 18 （ 1 ） : 2831Theoretical analysis and computer simulation studies show that performance comparable to that of electro - control active damping suspension systems can be achieved with the hydraulic network model which can self - adaptingly adjust the damping of suspension to realize the optimal control by virtue of response of vehicle. in chapter 5, the effects of time - variant factors in the new active damping suspension system on reduction are investigated
第五章研究了主動阻尼系統中的時變因數對減振系統的減振效果的影響（包括路況、車速、載重阻尼油的粘度系數隨油溫變化而引起的變化，油液的彈性模量等） ，並分析了模型簡化時一些被忽略的非線性因數對系統性能的影響。Overhead lines - requirements and tests for stockbridge type aeolian vibration dampers iec 61897 : 1998 ; german version en 61897 : 1998
架空線.架空線型的風振動阻尼裝置的要求和測試Usually only select states are available and output feedback is used. it is shown that output feedback, while not as effective as full state feedback, is still able to damp vibration. thirdly, virtual vibration measurement and control instrument is developed using lab view and homemade daq, then experiments are performed to validate the conclusion of analysis results
最後，為了驗證在理論分析和數值模擬中得到的結論，利用虛擬儀器軟體labview和國產數據採集板開發了虛擬振動測控平臺，然後對附加主被動混合阻尼的懸臂梁結構，實現了結構振動控制，實驗結果表明主被動阻尼分離結構對低階模態振動具有更顯著的控制效果。Laboratory measurement of the composite vibration damping properties of materials on a supporting steel bar
支撐鋼棒上的器材的組合振動阻尼性能的實驗室測量Second, the influence of vibration parameter, such as amplitude, frequency, exciting force, damping, on the velocity of material transportation is discussed. it can be referenced in engineering design
文中討論了振幅、頻率、激振力、阻尼等振動參數對物料輸送速度的影響，在輸送機設計過程中選取參數時可供參考。Test methods for vibration - damping property in laminated damping steel sheets of constrained type
限定型層壓減震薄鋼板的振動阻尼特性的試驗方法The research work focuses on the following four main investigations : 1. theory of fluid system design for adjustable linear oil damper by use of dynamic mathematical models and dynamic - parameter - compensat ing method, the first research of this item has established the generalized optimiz - - ation mathematical model of the fluid system of an adjustable linear oil damper ; by use of the mechanical generalized optimization theory and platform, the first research has also made a multi - objective and overall - performance optimal design to the fluid system which gives the damper both the best damping performances and the best economic capacities ; by modeling the whole damper and analyzing it by numerical method, the second research of this item has solved the problem of the damper ' s dynamical damping characteristics calculation, simulation and analysis
主要涉及以下四個方面的內容： 1 、可調式線性油壓減振器阻尼系統的設計理論採用動態數學模型和動態參數補償的方法對可調式線性油壓減振器的阻尼系統進行了廣義優化設計建模；運用機械廣義優化設計理論和平臺對可調式線性油壓減振器的阻尼系統進行了多目標、全性能的優化，實現了其技術性能和經濟性能的綜合優化設計；通過對整個油壓減振器進行建模與數值分析，解決了工程上對多級擬合線性油壓減振器的阻尼性能進行求解、對其動態特性進行分析的難點。In the recent years, a new smart damper, magnetorheological ( mr ) damper, is developed for vibration control, which is made of smart mr fluid. mr damper has an excellent variable damping property and its damping force can be changed by adjusting voltage applied to damper. therefore, semi - active control can be implemented with the damper
近年來，一種由高科技亞納米材料?磁流變體製成的磁流變智能阻尼器（ magneto - rheological （ mr ） damper ）問世並用於實際工程減振，該阻尼器的阻尼特性隨輸入電壓的變化而改變，具有良好的可變阻尼特徵，可實現半主動控制。To improve the stability, one common method is to install dampers at the roots of blades. however, commonly used dampers can hardly meet different demands when helicopter working in different conditions
為提高旋翼/機體耦合動穩定性，一般採用在槳葉根部安裝減擺器的方法，但目前常用的減擺器很難滿足直升機不同工作狀態下對擺振器阻尼的不同需求。The solution of undrived damp oscillator equation of motion with duplicate changes number
用復變數求未受驅動阻尼振子運動方程的解And physical embodiments of the concept are proposed, which are hydraulic damping networks established according to inner force feedback principle combined with semi - active control scheme
首先提出了該主動阻尼懸架的實現模型，該模型是在傳統的液力減振器的基礎上，應用半主動控制的思想結合力反饋的原理建立起來的內部液壓反饋阻尼網路模型。In addition, aerodynamic stiffness and aerodynamic damping on the system are already obtained in the condition of fluid - structure interaction. it is known that aerodynamic loads are associated with blade vibration. the systematic eigenvalues are used to judge whether the flutter occurs so as to find the stable operating range of a wind turbine
本文把風力機葉片簡化為懸臂梁，對梁截面的二維葉型建模，完整推導了二維葉型的線性運動微分方程和流構耦合條件下系統的氣動剛度和氣動阻尼，此時氣動載荷與結構的位移矢量以及速度矢量是相互耦合的，再利用系統的特徵值來判斷葉片顫振是否發生，從而獲得風機的穩定工作范圍。Abstract : based on the bouncing dynamic model & amp; vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative
文摘:該文在建立振動動力學模型和運動方程的基礎上，通過對車輛懸架阻尼比分析，就減振器阻尼等效為零或為負時，對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線Based on the bouncing dynamic model & vibration equation established in paper we analyse the damping ratio of vehicle suspension. we discass the stabilation of vibration system when the equivalent damping of shock absorber is zero or negative. we also provide the technology order which makes the system stable and un - corservative
該文在建立振動動力學模型和運動方程的基礎上，通過對車輛懸架阻尼比分析，就減振器阻尼等效為零或為負時，對振動系統穩定性影響及產生原因進行了探討.提出設計和製造過程中有效控制系統穩定和非保守特性的技術路線分享友人