摩擦阻尼 的英文怎麼說
中文拼音 [mócāzǔní]
摩擦阻尼
英文
frection damping-
( 2 ) increasing of wind is mainly induced by shf and affecting of lhf is very little. ( 3 ) effect of terrain increases ground rough and tonsure of terrain press and fiction correspond enhance frictional damp effect
( 3 )地形作用相當于增加了地面粗糙度,地形壓力梯度項與摩擦項地疊加,相當于使摩擦阻尼作用增大,地形強迫作用使下邊界層從上至下風速減小,風向向左偏轉。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。( 4 ) parametric studies for control performance of the sma incorporated friction dampers in long - span canopy roof structures are carried out. by analysis, practical engineering suggestions are presented
( 4 )系統進行了sma復合摩擦阻尼器在挑篷結構中的減振控制參數研究,通過對比分析,給出了實用性的工程建議。In this thesis, the behavior of sma incorporated friction dampers is studied through experiments. and the vibration control theory and control effectiveness of the dampers in long - span canopy roof structures are studied
本文在sma復合摩擦阻尼器理論模型的基礎上,對sma復合摩擦阻尼器進行了試驗研究和參數影響分析,並研究探討了其在大跨度挑篷結構中的減振控制理論與控制效果。Based on the structural feature of long blade with friction damper, pretwist beam element and space straight beam element were adopted to discrete the blade, and the numerical model of damper link element was established, then the gross finite element motion equation of the blade was obtained
針對帶摩擦阻尼器長葉片的結構特點,採用扭曲梁與空間直梁單元模化葉片,推導葉片阻尼連接單元的力學模型,由此建立葉片總的動力特性分析方程。For the use of vibration protection, hysteresis loop is often applied to descript and calculate the parameters of dry friction damping characteristics of metal rubber
在振動防護領域,通常用金屬橡膠阻尼元件的遲滯回線來描述金屬橡膠的干摩擦阻尼特性。Adding damped structure can decrease dynamic stress of blade and avoid blade fatigue failure from forced vibration
摘要為了防止透平機械長葉片因振動而導致的疲勞損壞,目前普遍採用的方法是在葉片上增加摩擦阻尼結構。Dynamic characteristic of various dampers of blades can be analyzed by the numerical model, and it may be usable for optimization of damped blade
分析結果表明,該數值模型可以應用於多種摩擦阻尼器長葉片的振動特性分析及優化設計,將為阻尼葉片的設計提供實用工具。Speed of mass driven by random thrust and dryfraction dumping
作用有干摩擦阻尼的質量塊受隨機推力時的速度分析Fluid friction damping
液體摩擦阻尼It is shown that the sma incorporated friction dampers possesse a significant performance of energy dissipation
驗證了sma復合摩擦阻尼器具有優越的減振耗能性能。As a kind of material with dry friction damping characteristics, metal rubber is used in many fields
摘要金屬橡膠作為一種干摩擦阻尼材料,其阻尼特性在很多領域得到了應用。The mechanism of vibration reduction and support characteristics are analyzed and a friction damper is designed
分析了該支承的減振機理和支承特性,設計了摩擦阻尼器,研究了其對轉子系統不平衡響應的影響。According to the results of test, the dissipation mechanism of friction - viscoelastic damper ( f - ved ) is studied and its theoretical hysteretic curve is obtained
摩擦阻尼器的耗能機理進行了研究,並在理論上獲得了它的滯回曲線。By changing these parameters and the z - directional stiffness of the outer - ring, the stiffness and the damping characteristic of the damper can be varied
在轉子系統支承中引入摩擦阻尼器能夠降低支承剛度,從而降低系統的臨界轉速,避開工作轉速。To reduce the excessive vibration of a high - speed rotor system at the critical speed, a friction damper with a flexible support structure is introduced
摘要為了抑制高速滾動軸承轉子系統在通過臨界轉速時的過大振動,本文採用了摩擦阻尼彈性支承結構。Firstly, the dynamical performance of friction damper ( frd ) and viscoelactic damper ( ved ) is tested in this paper. the work, which gets the rules that the two dampers " hysteretic curve and performance - parameters change follows the changing of excitement, lays the foundation for designing new kind of edd
論文首先進行了摩擦阻尼器和粘彈性阻尼器的動力性能試驗,獲得了兩種阻尼器的滯回曲線和性能參數隨激勵性質變化的規律,為進一步開發新型的耗能阻尼器提供了基礎。Through the research, following achievements have been made : ( 1 ) a detailed experimented study has been carried out to investigate the performance of the sma incorporated friction dampers. the effects of displacement amplitude and frequency are taken into account in experiments. good agreement between theoretical and experimental results is obtained
通過研究主要取得如下成果: ( 1 )首次進行了sma復合摩擦阻尼器的性能試驗研究,根據試驗結果分析了位移幅值、加載頻率等對阻尼器的等效剛度、單位循環耗能和等效阻尼比的影響,並與理論分析結果進行了對比分析,兩者吻合較好。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。( 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