input bridge 中文意思是什麼
input bridge
解釋
輸入電橋-
Then novel circuit structure of bi - directional voltage mode ( based on forward converter ) inverters with high frequency link, are proposed, which is constituted of input cycloconverter, high frequency transformer, output cycloconverter, input and output filter ; the circuit topologies family of this bi - directional voltage mode inverters with high frequency link include six circuit topologies, such as push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controlled bi - directional voltage mode inverters with high frequency link is introduced
本文首先論述了dc / ac逆變技術的應用前景及發展現狀。基於正激forward變換器的雙向電壓源型高頻環節逆變器電路結構，由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成;雙向電壓源高頻環節逆變器電路拓撲族，包括推挽全波式、推挽橋式、半橋全波式、半橋橋式、全橋全波式、全橋橋式六種電路。 -
The voltage of bridge capacitor will become unbalanced, when inverter ' s input side is a single source. this phenomenon is inherent with the control of voltage feedback. a balance winding can overcome this shortcoming and widen the application of this circuit
採用單電源供電的半橋電路，如僅採用電壓反饋控制方案無法克服橋臂電容電壓的不平衡，通過加入平衡繞組可以克服這一缺陷，擴大電路的應用場合。 -
Output voltage and current is often distorted in half bridge converter because voltage unbalance of input capacitors though its application is very abroad
摘要半橋逆變器應用廣泛，但存在直流分壓電容不均壓，使分壓電容中點電壓漂移，導致輸出電壓和電流畸變的缺點。 -
Based on the inductive analysis to theories, aimed at perfection to software development, the paper expands three modules to the bridge software bridge master about to be developed - - data input system, creep and shrinkage analysis model and pre - stress analysis model
本文以理論歸納分析為基礎，以軟體開發完善為目的，對擬開發的橋梁軟體bridgemaster擴充了三大模塊? ?數據輸入系統、徐變收縮分析模塊及預應力分析模塊。 -
The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization
其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。 -
Concrete elastic modulus and concrete creep and shrinkage variety at different time are reckoned in by using time increment analysis method and concrete creep and shrinkage secondary force is calculated by using effective elastic modulus. bridge stability analysis program is developed on the base of structure matrix displacement method, the program adopts visual basic language, has friendly interface and visual data input windows. the buckling safety factor of currently finished structure is given as result
為計入混凝土彈性模量的變化及混凝土徐變收縮隨混凝土的齡期與外荷載加載時間不同而變化的影響，採用時間增量法對每個計算階段根據其階段內時步數進行循環，以計算時段內彈性應力、應變增量和徐變、收縮產生的應力應變增量，利用有效彈性模量法計算混凝土徐變收縮次內力，在此基礎上，結合結構矩陣位移法的基本理論編制開發了計入混凝土時效效應的高墩大跨徑橋梁穩定分析程序。 -
In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training
本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中，編制了計算程序，成功地以現有12座典型橋梁的基礎數據為樣本，以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數，以船撞橋概率為輸出參數，經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。 -
Compared with full - bridge or half - bridge converter, a two - transistor forward converter has no risk of direct break - through in the two transistors of the same leg, it is suitable for high voltage input high power output application
另外，和全橋變換器或是半橋變換器相比，交錯並聯雙管正激變換器不存在橋臂直通的缺陷，因而比較可靠。因此，它適合於高壓輸入大功率輸出的應用場合。 -
The series h - bridge multilevel converter has the advantages of high output voltage, high power, lower harmonic content in line and motor sides and high input power factor
串聯h橋多電平變頻器具有輸出電壓高、功率大，輸入側和輸出側諧波含量小，輸入功率因數高等特點。 -
2, design a structure makes the liner output higher to 160mv with a liner input about 150 in bridge of spin - valve gmr. in comparison of some typical mr angular sensors it ' s output make a great progress
2 ，設計了一種結構使自旋閥gmr晶元組成的橋路輸出電壓信號線性區達到約150 ，輸出幅度達到了160mv ；相比一些典型的磁阻非接觸式角度傳感器，量程獲得了可觀的擴展。 -
( 3 ) based on the hierarchy assessment model, a neural network method to assess the damage in bridges is put forward. the scores of assessment factors being made the input value and the score of damage assessment the output value, a multilevel assessment model for bridges came into being, which in turn could come to the final result of the bridge as a whole and get the damage rating according to the given standard
（ 3 ）在橋梁損傷評估層次結構模型的基礎上，提出了基於神經網路的橋梁損傷評估方法，以評價指標的評分值作為輸入，以損傷評估值作為輸出，建立了橋梁損傷多級評估模型，從而得出橋梁損傷的評估結果，並根據給定的標準，確定橋梁的損傷等級。 -
By using phase shifting control between right bridge leg and left bridge leg, the output cy cloconverter commutating while the bi - polarity three - state high frequency ac volage from the input cycloconveter is zero, . and commutation overlap of the output cycloconverter and polarity selection of the input voltage, the leakage inductance energy and the output filtering inductance current are naturally commutated, and zvs switching of the output cycloconverter are realized, the surge voltage and surge current of the output cycloconverters are overcome
通過輸入周波變換器右橋臂相對左橋臂的移相，讓輸出周波變換器功率開關在輸入周波變換器輸出的高頻交流電壓為零期間進行換流，並藉助輸出周波變換器換流重疊和輸入電壓極性選擇，從而實現了變壓器漏感能量和輸出濾波電感電流的自然換流、輸出周波變換器的zvs開關，解決了輸出周波變換器固有的電壓過沖和環流問題。 -
First, based on the analysis to the development condition of computer and property of the input data of bridge, this paper, taking convenience and practicability as principle, develops the multi passages data - in system made up with human - computer interactive interface and excel import model. second, after comparing and analyzing to the calculation theories and methods of creep and shrinkage, clearing up the key steps of creep and shrinkage analysis, the paper takes incremental method to establish program to analyze secondary inner force caused by creep and shrinkage. third, the paper puts some optimal or simplified treatment to the contents of pre - stress and develops relative program ; in addition, through analysis to the different methods used to calculate the secondary inner force caused by pre - stress, the paper combines equivalent load method with finite element, carries out some simplified treatments, and establishes program to calculate secondary inner force caused by pre - stress
首先，在分析當前計算機的發展狀況及橋梁結構輸入數據特點的基礎上，以方便、實用為原則，採用人機交互界面和excel輸入方式聯合的多通道數據輸入系統；其次，通過比較分析徐變收縮計算的各種理論及方法，澄清了徐變收縮分析的關鍵過程，並採用增量法編製程序，實現徐變收縮次內力分析；再次，對預應力的相關計算內容進行適當優化或簡化處理，並編制相應程序；另外，本文還在比較預應力次內力各種計算方法的基礎上，將等效荷載法結合有限元進行一些簡化處理，編製程序實現預應力次內力的計算；最後以三個算例來校核計算方法及程序運行結果的可靠性，取得了預期效果。 -
The zero - voltage - switching ( zvs ) pwm hybrid full - bridge three - level ( h - fb tl ) converter can operate in both three - level mode and two - level mode, the output rectified voltage is close to the output voltage over the entire input voltage range, thus the output filter can be reduced significantly, leading to high power density and fast dynamic response. so the zvs pwm h - fb tl converter is very attractive for the applications such as fuel cells, photovoltaic cells, and telecom power supplies, where the voltage varies in a wide range
零電壓開關復合式全橋三電平（ zero - voltage - switchingpwmhybridfull - bridgethree - level ， zvspwmh - fbtl ）變換器可以工作在三電平模式和兩電平模式，在很寬的輸入電壓范圍內，輸出整流電壓都接近輸出電壓，從而可以減小輸出濾波器，因此可以提高變換器的功率密度和改善動態性能。 -
Since reform and opening up, especially since 1995, with the construction of diversified sources of funding ( both former national funding for non - road toll charges after ; now for the various forms of financing, loan fees owing on the loan after construction ) and the rapid development of bridge - building technology, a large number of high input, high - tech, big began the yangtze river bridge, like everywhere have built up, as of 2006 3, yangtze river to shanghai jiang yibin, a 42 bridges have been built into the large blocks, 18 blocks in the construction of the bridge
改革開放后，特別是1995年以來，隨著建設資金來源的多元化（原均為國家撥款，建后不收過橋費；現在為各種形式的籌資、貸款，建后收費還貸）及造橋技術的迅猛發展，大量的高投入、高技術、大跨徑的長江大橋如雨後春筍一樣紛紛修建起來，截止2006年3 ，長江宜賓至上海江段有已建成通車的特大型橋梁42座，在建的橋梁18座。 -
A topology of asymmetrical half bridge soft switching is researched in this thesis, which has inherent zero voltage switching ( zvs ) capability and thus potentially higher efficiency by its resonating of the leakage of power transformer with the parasitic capacitances of the power mosft switches, whereas it does n ' t raise the expense of the converter these studies in the thesis have been done as follows : ( 1 ) the topology of asymmetrical half bridge is introduced, and its principle and the relation of duty cycle and input voltage and output voltage discussed, the method of eliminating the deflection magnetism is also brought forward
雖然，軟開關技術能夠實現功率變換器的小型化、模塊化等，但是，電路變得更加復雜，使得中小功率的變換器的成本增加，往往不利於商業競爭。本文研究了一種零電壓的不對稱半橋拓撲結構，它可以在不增加電路成本的基礎上，利用電路自身的特點，實現軟開關。本文所做的主要工作如下： （ 1 ）對不對稱半橋主電路工作原理進行分析，給出了占空比與輸出電壓、輸入電壓的關系以及消除變壓器偏磁的方法。 -
Usually the bridge circuit has a relatively high input impedance so that it has an insignificant effect on the signals in the transmission line
通常橋接電路具有較高的輸入阻抗，因此傳送線上的信號將不受影響。 -
To reduce the emi, reverse reset of the diode are studied, and design way about spike - killers and saturable inductors witch can suppress voltage and current spikes are showed. in this thesis, a transformer clamping full - bridge dc / dc converter is presented to salve the high input voltage. in this chapter, the operating principle is analyzed and experimental results have been showed on the 2kw converter
在處理高壓問題上，本文又提出了變壓器箝位高壓大功率dc dc全橋變換器拓撲方案，文中對其工作原理進行了分析，文中以一臺2kw的原理樣機對其工作原理進行了驗證，很好地解決了輸入電壓高的問題。 -
Experimental modal analysis based on ambient vibration is mainly to deal with the engineering problems from with we can hardly achieve the input signals, such as the operational modes of a flight vehicle during the flight or the dynamic behavior of a large - scale structure like an offshore platform, a bridge as well as a skyscraper on which we can ’ t exert a heavy kick
基於環境振動的實驗模態分析主要針對一些激勵不可測的工程問題，如研究飛行器在飛行中的運行模態，或諸如海洋平臺、橋梁、摩天大樓之類難以施加激勵的大型結構的動態特性。本文重點研究了隨機子空間方法在環境振動模態分析領域的應用。 -
Small signal model of one cycle controlled bridge switching power amplifier is established. the theory research results of one cycle controlled switching power amplifier show that the output signal follow the input signal linearly, and the control performance is decided by output filter
理論分析結果表明，單周控制開關功率放大器的輸出信號與輸入信號成線性變化關系，其控制性能由輸出濾波器決定。
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