damping reduction 中文意思是什麼
damping reduction
解釋
去阻尼、損耗補償-
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。 -
Theoretical 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。 -
Cab uses new steel structure, broadminded, secure, damping noise reduction
駕駛室採用新型鋼構，視野開闊，安全可靠，減震降噪。 -
This provides an increased damping rate and allows a slight reduction in camber angle
這樣就增加了減震度，並且可以稍微減少外傾角。 -
Abstract : it is the first time to use powder damping technique in reducing the vibration and noise of cold saw clamp. through measurement and analysls of the noise reduction effects and frequency spectrum, it is found that powder damping is a simple and practical technique, and influences on the strength and natural characteristics of the clamp are small
文摘:把粉體阻尼技術首次用於冷鋸機夾盤的減振降噪，通過對其降噪效果及頻譜的測量分析，發現粉體阻尼不但是一種簡單實用的技術而且對夾盤的強度和固有特性影響小。 -
This paper presents an investigation on a new type of rubber damper, that is, a rubber damper with honeycomb structure. the honeycomb structure will enhance the energy dissipation of a rubber damper and as a result increase the damping of the damper. the performances of honeycomb dampers are experimentally tested by a test rig. the results show that the diameter and the density of holes of the honeycomb structure are important parameters in the design of the damper. for a damper of given size, there are optimum values of both parameters with which the damper provides highest damping. additionally the honeycomb structure does not change the correlation of damping to frequency. a practical honeycomb damper is designe d and applied to inlet pipe of a screw compressor in a petroleum factory for vibration reduction. the vibration of the pipe is obviously suppressed by the damper, at least 25 %
本文採用理論分析和實驗相結合的方法，研究了蜂窩孔這種結構因素對橡膠阻尼材料阻尼性能的影響。在自行設計、製作的懸臂式阻尼測試實驗裝置上，對蜂窩式橡膠阻尼器的阻尼性能進行了大量的實驗測試，初步找出了蜂窩孔孔徑、孔數以及預壓縮量等因素與阻尼器阻尼性能的關系。本文利用實驗研究的結論，設計了一種專用的蜂窩式橡膠阻尼器，並應用於某廠螺桿壓縮機進口管道的減振，取得了明顯的減振效果。 -
The course keeping and the course tracking are well. through observing, analyzing and comparing the simulated curves with damping and those without damping, the roll reduction can reach 25 % or so
運用simulink工具箱得出加風、浪后系統的輸出曲線，通過觀察，可以看到舵角在有效范圍內變化，航向跟蹤和保持得很好。 -
The results indicate that while variable dampers significantly reduce the response as compared to the case with no control, no reduction or the worse situation is observed when compared to the same device acting as a passive damper with the upper limit of the damping of the corresponding variable damper
在大多數情況下，粘性變阻尼控制與無控相比可以顯著減小結構的動力反應，但與相應的被動上限阻尼控制相比並不能進一步改善控制效果，甚至有所不及。 -
This paper summarizes the results of researches on track vibration damping and noise reduction for tianjin metro line 1, such as the new - type high - elastic vibration damping fastening and block sleepers with rubber - plastic boots
摘要在天津地鐵1號線軌道系統中，採用新型高彈性減振扣件、新型橡塑套靴彈性短軌枕等減振降噪的創新技術。 -
Now there ' re more attentions upon development, mechanics performance, computation module, dynamic analytic method of dampers at home and abroad for research on the energy - dissipation structures with viscous damped bracings, but research on conceptual design principles and additional damping ratio ' s determination are less and only localized in terms of the principle which restrict the expansion and application of the energy - dissipation earthquake - reduction technique
國內外對粘滯阻尼消能支撐結構的研究多側重於阻尼器的開發及其力學性能、計算模型、動力分析方法等方面，而對與實際工程應用直接相關的概念設計原則、附加阻尼比的確定等方面的研究則相對薄弱，一般僅限於原則性條款，這制約了消能減震技術的推廣應用。 -
Compared with other dampers, vdw has its specific advantages such as the full utilization of space, the provision of larger damping force, the convenience of installation, and the low cost of maintenance and so on. vdw not only can be applied in the earthquake - reduction design of new buildings, but also be used in the aseismatic retrofitting of existing buildings
與其它阻尼器相比，粘滯阻尼墻可充分利用墻體所提供的空間，產生足夠大的阻尼力；既適合新建工程的減振設計，又能用於現有結構的抗震加固，且安裝方便、維護成本低，是目前較為理想的阻尼消能元件。 -
The vibration - reduction principle of viscous damper is to consume most portion of the input energy by viscous damping material during the earthquake and wind so as to diminish vibration response of structures and insure structures " safety, and this technique has been becoming one of the main tendency of earthquake - resistant engineering research
粘滯阻尼器的控振原理是通過粘滯阻尼來耗散輸入結構的大部分振動能量，以減少結構的振動反應，保證結構在地震和風荷載作用下的安全；消能減震技術現已成為工程抗震研究的主要發展方向之一。
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