波導橋 的英文怎麼說

中文拼音 [bōdǎoqiáo]
波導橋 英文
bridge hybrid
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 橋 : 名詞1. （橋梁） bridge 2. （姓氏） a surname
  • 波導 : [物理學] （用在微波波段傳輸電磁波的裝置） waveguide; duct
  1. So it can reduce the light leaking loss of a 2 - d photonic crystal defect waveguide

    本論文對空氣橋結構光子晶體帶隙限制光波導及其接續光波導的製作工藝進行了研究。
  2. The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage, resulting in the pulsating waveform of the input ac line current, low power factor ( generally 0. 65 ) and high harmonic line current

    傳統的開關電源設備通常採用二極體橋來進行整流和一個較大的電解電容來進行濾波以實現輸入電壓的交直流轉換，導致輸入電流為一個很窄的脈沖波並含有較多的諧波分量，功率因數變低（通常只有0 . 65 ） 。
  3. This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved

    本文提出了一種採用修補spwm正弦表值的方法，用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變；逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器，提高了系統的動態響應指標；系統設計了完善的保護措施，並具有市電電網的故障診斷功能。
  4. This thesis work has researched the fabrication technics of photonic crystal defect waveguide with air - bridge structure and collecting waveguide ; suggested using uv - lithography and wet etching to fabricate traditional waveguide, after that, using eb - lithography and dry etching to fabricate photonic crystal holes, so can reduce the fabrication cost by a big range ; designed the moulding board, which can fabricate the air - bridge structure and is convenient for recognizing position in eb - lithography ; the structure consisted of traditional waveguides and etching grooves are fabricated on soi successfully, then an successful eb - lithography is realized on the structure, the defect waveguide collected with the traditional waveguide quite well ; used the etching grooves to do the sacrificial layer etching experiment, which grounded etching sacrificial layer by photonic crystal holes in next step

    提出採用紫外光刻工藝製作傳統波導結構之後，通過電子束曝光和干法刻蝕製作光子晶體小孔的工藝方案，大幅度減低了製作成本；設計出可形成空氣橋結構、並且適用於電子束曝光位置識別的光刻模板，在soi材料上成功製作出帶有空氣橋刻蝕預留槽以及接續光波導的結構，在該結構上成功實現了光子晶體帶隙波導的電子束曝光，帶隙波導與接續光波導位置接續良好；最後利用預留槽進行了刻蝕犧牲層的實驗，為下一步利用光子晶體小孔刻蝕犧牲層形成空氣橋結構打下了基礎。
  5. On one hand, the internal forces and displacement formulas of csbcs were deduced by using the matlab program, on the other hand, taking out of one wavelength of csbcs and soil from the actual project as the analysis object, simulation numeric calculation was carried out by using big - style fem ( finite element member ) software, ansys

    一方面，用matlab編程，推導了波紋鋼板橋涵的內力和位移公式，另一方面，取一個波紋長度的波紋鋼板橋涵和土作為分析對象，用大型有限元軟體ansys對湖北洪沙線豐收渠橋涵工程的靜載試驗進行了模擬數值計算。
  6. A detailed model of non - linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non - linearity are considered, is proposed in this paper. based on several numeric examples investigated by the galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived

    本文創新地提出了斜拉橋拉索-橋面耦合參數振動模型，推導了索-橋耦合非線性參數振動方程組，聯合galerkin法及數值積分方法，對各種特性的拉索進行了數值求解，得出了影響拉索參數振動的各種因素；提出了斜拉索受軸向端激勵參數振動模型，導出了模型的非線性振動方程，使用諧波平衡法得出了產生參數振動需要的最小激勵幅值、共振時瞬態及穩態的振動幅值及索拉力的變化特性，並用數值積分方法對實際斜拉橋拉索進行了計算，分析了拉索阻尼對參數振動的影響。
  7. According to the finite element method result, the parametric vibration of cables in cable - stayed arch bridge becomes prone to be exhibited. then a model of non - linear parametric excitation vibration coupling the stayed cable and the girder, namely, the mode of cable - stayed beam, is proposed in the thesis. and the nonlinear dynamical

    3 、首先利用有限元分析方法，得出了斜拉索發生參數共振的可能，然後建立了斜拉拱橋拉索-橋面耦合參數振動模型，即索-梁組合結構模型，推導了索-梁組合結構非線性運動方程，利用多尺度方法研究斜拉索的參數共振和亞諧波共振，並對穩態解的穩定性進行了分析。
  8. Usually series mode is used in low frequency circuit while bypass mode is used in high frequency circuit, series mode micro - switch with cantilever structure is similar to an fet, when voltage is applied on gate, and the fet will be turned on between source and drain

    有靜電電壓作用在梁和底面電極時，梁發生偏轉，在源極和漏極之間實現導通，常用於自控和通信系統的信號通路空氣橋旁路開關主要用於微波段信號的通路。
  9. Based on the research on one - cycle control theory, one - cycle control is applied to three - phase four - wire apf with four - leg in this paper. analysis for the average model of the apf in switching period is performed and the control equation is derived

    本文在研究單周控制理論的基礎上，將單周控制用於四橋臂三相四線制有源電力濾波器，通過分析其開關周期平均模型，推導出它的控制方程。
  10. The equation of selecting filter capacitor is derived to make the feedback energy which is produced by the inverter to be minimum. the value of the capacitor has been decreased from 20u. f to 7. 6fif and the efficiency has been improved by 1. 5 %. the maximal filter inductor value has been given on the base of the hysteresis control principle

    推導出了使逆變橋的無功回饋能量最小的濾波電容取值公式，原理樣機的濾波容因此從20 f減小到7 . 6 f ，減小了62 ；系統的效率提高了1 . 5個百分點，重量也有所減小。
  11. The thesis analyses the effect of phase shift control and the utilization of the transformers primary sides saturable inductor to the transformers secondary sides voltage duty cycle, and basic on the buck converter s small signal ac model the converter s model is deserved, and infers control to output transfer function

    論文通過分析移相控制方式和高頻變壓器一次側的飽和電感對高頻變壓器二次側方波電壓占空比的影響，在buck變換器小型號模型的基礎上建立了帶飽和電感的移相控制零電壓開關全橋變換器的小信號模型，推導出控制到輸出的小信號傳遞函數。
  12. Thirdly, the snubbers are designed to compress the switching voltage transient. when igbt is abruptly turned off, trapped energy in the circuit stray inductance is dissipated in igbt, causing a voltage overshoot and damaging igbt. this paper analyzes the principle of the snubber and discusses the impact of the parameters of the snubber on voltage overshoot

    針對igbt工作過程中出現的電壓尖峰、電流尖峰和大的開關損耗問題，本文首先從理論上詳細分析了igbt逆變橋緩沖電路的工作原理，推導出緩沖電路各元件的參數計算公式，討論了緩沖電路各元件參數對關斷電壓波形的影響並進行了模擬分析。
  13. The influence such as the arranging of measurement sensors, wavelet ’ s resolution ( related to sampling frequency ) is also discussed. conclusions are : ( 1 ) there is critical resolution existing in moving force identification. when the resolution is lower, large local error arises, and when higher, good results will be present

    本文還研究了小波解析度（與信號采樣頻率關聯） 、測點排布等因素對識別結果的影響，得出如下結論: daubechies （ 1 ）在車橋系統的移動載荷和預應力識別過程中存在臨界解析度，低於此解析度會導致產生局部較大誤差，高於它時識別效果良好，且隨著解析度的增大會有微小改善。
  14. The main idea makes use of daubechies orthonormal bases to transform the differential equations into linear equations in wavelet space, and then solve the set of simultaneous equations to get the solution, transform the solution back into physical space to identify the moving loads or the prestressing force. numerical simulations demonstrate the efficiency of the method using selected measurements

    該方法的思路是先對車橋系統進行有限元建模，再利用小波基將動力學方程導入小波空間，求解關于響應與載荷的小波系數的線性方程組得到載荷小波系數，重新導入到物理空間求得所需識別移動載荷。
  15. First, this paper analyzes the principle of the snubber circuit of igbt inverter in detail, and the parameter of the snubber circuit components are derived. it also analyzes the twice voltage peak of the snubber circuit during the period of turnoff and discusses the impact of the parameter of the snubber circuit components on the waveform of turnoff. the reference materials for the snubber circuit design are proivided theoretically in this paper. futhermore. it analyzes a soft switching circuit that suits pulse power supply

    本文首先從理論上詳細分析了igbt逆變橋緩沖電路的工作原理，推導出緩沖電路各元件的參數計算公式，分析了緩沖電路在關斷過程中的兩次電壓尖峰，討論了緩沖電路各元件參數對關斷電壓波形的影響，為緩沖電路的設計提供了理論上的依據。
分享友人
分享到 Line

分享到臉書