振動變換器 的英文怎麼說
中文拼音 [zhèndòngbiànhuànqì]
振動變換器
英文
vibratory converter- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 換 : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
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Taking a five - story frame structure as an example, the influence of the piston area, piston stroke, accumulator volume and oil elastic modulus on the systems control effect and energy transition efficiency are discussed in detail
詳細討論了四個主要參數的變化對振動控制效果和換能效果的影響,這些參數包括隔震換能系統的活塞面積,活塞最大行程,蓄能器體積和油液彈勝模量等。Keeping the self - adjusting of damping behavior when the controllability of semi - active damping is disable, or saving the unnecessary energy when the continuous modulation of damping is not needed, the composite structure for self - shifting between passive and semi - active structure is presented
摘要當磁流變減振器半主動功能失效時,為保持其阻尼性能仍具一定的自調節性或實際路況不需無級調節時,節省不必要的能耗,提出用於車輛半主動懸掛系統的被動與半主動功能自動切換的復合結構磁流變減振器。The ultrasonic motor is a kind of direct driver which is uses the converse piezoelectric effect of the piezoelectricity ceramics, by using transformation and the coupling of each kind of expansion and contraction vibration pattern enlarging the material microscopic distortion by resonate effect and transforming it to macroscopic movement of the rotor or the slide by the friction coupling
超聲波馬達是一種利用壓電陶瓷的逆壓電效應,通過各種伸縮振動模式的轉換與耦合,將材料的微觀變形通過共振放大和摩擦耦合轉換成轉子或者滑塊宏觀運動的直接驅動器。The thesis discussed a parameter extraction program for the mosfet level1 model. in the analysis and design of circuit, at first, the thesis described the system function of the new dc - dc switching converter. then several sub - circuits of converter ic such as oscillator, over - temperature shutdown circuit, auto - restart counter circuit and control circuit were completely discussed
在電路設計中,本文首先分析了開關電源電路的基本拓撲結構和psm調制模式,接著對開關電源變換器進行了系統的原理分析並設計了總體框圖,然後詳細設計了振蕩器電路,熱保護電路,自動重啟計數器電路和主控門邏輯等子電路並進行了功能模擬。There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量轉換角度出發,提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。Sam anlagentechnik engineering gmbh - our products and services are covered into the following ranges : low voltage switchgears, rectifiers and electrical supply system as well as transformer stations and / or inverters, dc / ac converters
Sam anlagentechnik engineering gmbh是一家知名的、誠信的生產商和服務商,該公司提供新型的、專門的產品,例如低壓配電裝置,整流器,變電站,供電設施,振動子換流器、反用換流器、逆變器。But to circular plate with large surface area, the vibrate modes generated is often so high that there is reverse phases existing, which result in a decrease in radiation impedance, electric - acoustic efficiency and the electric power, as well as poor directivity
然而對于輻射面積較大的彎曲振動圓盤,一般激勵的振動階數比較高,因此存在彎曲振動的反相區,導致換能器的輻射阻抗下降,電聲效率和聲功率降低以及指向性變差等問題。They act as an intermediary transducer, much as a tuning fork which when struck, and then being brought into proximity of another tuning fork, will start the second fork to begin vibrating also
他們擔當了中間媒介變換器角色,非常像受了敲擊的音叉,緊接著就引起了另一個音叉的共鳴,就會引起第二個音叉也同樣開始振動。First we collect signals by shake and infrared temperature sensor, transfer them to computer by a / d instrument, dispel zero excursion of sensor and in - linearity of a / d transformation, save them in the form of data file. then transfer them to matlab, analyze and dispose by wavelet function and toolbox. by lot of experiments and data analysis we find distinct change of the character in different fault states
然後,我們在現場對砂光機進行實驗,利用振動及紅外線溫度傳感器現場實時採集信號,通過a / d采樣卡送入計算機中,採用逆向建模的新方法來消除傳感器零漂及a / d轉換的非線性,再以數據文件形式保存,然後在matlab中調用數據文件,應用小波函數及工具箱對其進行處理分析,經過大量的實驗及數據分析發現在不同的故障狀態下,特徵量有明顯變化。A fem software as an important tool, work has been done as follows : the method using fem to design anomalous structure of transducers was adopted ; the vibration modes of the elastic pipe, ultrasonic transducers and system has been analyzed in piezoelectric coupled field. resonant frequencies of the transducers have been matched quite well with resonant frequencies of pipe, which can make it easy and accurate to design a transducer. the values of equivalent dynamic capacitors and dynamic inductances of ahead nine orders have been gotten derived by fem method, and fem equivalent circuit of the transducers has been built
以ansys有限元軟體為主要分析工具完成了設計工作;在經典換能器設計理論和前人經驗的基礎上,對不規則形狀的換能器採用了有限元的方法設計;在耦合場中分析了換能器、導管及整體裝置的振動情況,使換能器的諧振頻率與導管的諧振頻率達到了較好的匹配,使設計變得更加容易和準確;利用有限元方法建立了振子的等效電路模型,求出了其前6階模態的等效動態電容電感值,為阻抗匹配和驅動電路的設計提供了依據。Finally, the random vibration analysis of the signal transform device is presented. experimental modal analysis is discussed briefly. the reasons why the relays on the printed circuit board were destroyed under random acceleration excitations are found out
本文最後對信號變換裝置進行了隨機振動響應分析,簡要探討了實驗模態分析法,找出了裝在印製電路板上的繼電器在隨機振動試驗中被損壞的原因,也介紹了結構動力模型修正技術的發展。The mechanical impedance analyzing method utilized, the mathematical formula for the input impedance and transformer ratio of ultrasonic horn are built up, some vibration performance of ultrasonic horns are discussed under different load impedance, the relationship and applicational conditions between the transformer ratio of ultrasonic horn and the radiational impedance are analyzed
採用機械阻抗分析方法,建立了超聲變幅器的輸入阻抗和變幅比的數學表達式,討論了不同負載阻抗下超聲變幅器的振動性能,分析了超聲變幅器的變幅比與換能器輻射阻抗之間的關系及應用條件。For the signal transform device, a commonly met dynamic loading is random vibration, as met in the flight experiments, etc. therefore, analyzing the dynamic response of some key components under random vibration, and further minimizing its adverse consequences on the products is very important for the signal transform device designs
信號變換裝置在飛行試驗等試驗中常常要經受隨機振動。因此,對于信號變換裝置來說,分析隨機振動下關鍵器件的動力響應並進一步最小化不利影響是非常重要的。Research on adaptive damper system review the current er damper and active vibration control technology, the conception of converting vibration energy to energy damping vibration is presented. the adaptive er damper system has a rack and pinion mechanism which converts a linear motion of piston to a rotary motion
採用齒輪、齒條機構將車輛的往復直線運動變換為旋轉運動,再利用齒輪機構升高轉速驅動永磁直流發電機產生電能,把電壓升高後作用於電流變流體減振器,由此構成一個完整的自適應減振器系統。In chapter 3, according to the requirements of high voltage power supply used for charging capacitors with constant current, the series resonant converter ( src ) was chosen as the main circuit frame. the dynamic process of src was discussed by using mathematical analyses and numeric simulation to study the operational characteristics, the effects of parameters of resonant circuit on them and the relationship between switching frequency and out put power, which provided the bases of designing the power supply
第三章中根據高壓電容恆流充電電源的運行特點,選擇了串聯負載諧振變換器作為主電路結構形式,並對其動態過程進行了數學分析及數值模擬,討論了該電路的運行特點、諧振迴路參數對運行特性的影響以及開關工作頻率與功率輸出的關系,為電源的設計提供了依據。Presents the simple but highly reliable on - line detection of ultrasonic transducer clamping capacitance based on the impedance circuit model constructed through the impedance characteristics of the ultrasonic transducer under triple harmonics, and concludes from experimental results that this method can be used to effectively detect the variation of clamping capacitance while the transducer is operating, and the matching inductance can be dynamically regulated according to the results of detection, and dynamic matching can therefore be achieved in the real sense at the end of the transducer to improve the overall performance of the whole system
為了解決大功率超聲應用的換能器電端匹配問題,分析了超聲波換能器在諧振頻率三次諧波下的阻抗特性,給出了超聲換能器三次諧波下的阻抗電路模型.並根據阻抗電路模型建立了對超聲換能器的夾持電容實現在線檢測簡單、可靠性高的方法,實驗證明該方法有效的.該方法可以在換能器工作過程中隨時檢測夾持電容的變化,根據檢測結果對匹配電感進行動態調整,實現真正意義上的換能器電端的動態匹配,從而大大改善匹配質量,提高系統的工作性能The mathematical model of working process is built, and the theoretical analysis is accomplished, too. from the viewpoint of energy building and transform, another new method, named as additional resonant starting way, is presented. the principle of working and the structure of the circuit are described in detail
通過分析負載變化對串並聯逆變器啟動的影響,在預充初始能量研究的基礎上,從能量補償和能量轉換的觀點,提出了兩種新的啟動方法:負載充磁啟動方法和附加振蕩啟動方法。She was the only woman whose place was upon the machine so as to be shaken bodily by its spinning, and the decrease of the stack now separated her from marian and izz, and prevented their changing duties with her as they had done
她是唯一一個還在機器旁邊幹活的女人,機器不停地轉動,振動著她的身體,麥垛變矮了,從而把她同瑪麗安和伊茨隔開了,因此她們也不能像從前那樣互相替換一陣了。分享友人