頻差共振 的英文怎麼說
中文拼音 [bīnchāgòngzhèn]
頻差共振
英文
frequency difference resonance-
E., the carrier frequency of a gaussian beam deviates from the resonant frequency of a fabry - perot etalon ), variations of the peak intensity, the position of the peak intensity and the dwdm systems, has received considerable attention. in this work, after taking into account the wavelength - depended reflectivity distribution profile of a fiber bragg grating, the oscillation wavelength # _ ( 1 ) of long external cavity fiber bragg grat
與共振情況（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率一致）相比，非共振條件（即高斯光束的載波頻率與法布里一拍羅濾波器的諧振頻率存在偏差）一透射光束的峰值強度、峰值強度所對應的位置、以及光斑的大小隨入射角的變化都發生了顯著的改變。Accurate simulation of switch circuit is needed in pin switch design, while limited by assembling techniques, serial resonance and channel inter - coupling exist in the common joint that bring a lot of difficulties for simulation. 2 - dementions simulation software can not establish accurate circuit mode for pin diode switch which gives simulation error, and it costs much more time with 3 - dementation simulation software, which is not applicable in practice for pin switch design
Pin開關的設計中需要對開關電路進行準確模擬，然而高頻、寬帶、多擲pin開關受裝配工藝的限制，開關公共結點附近存在著串聯諧振和相互耦合，給pin開關的準確模擬帶來了困難:二維模擬軟體很難對電路進行準確建模，模擬誤差較大;三維模擬軟體耗時過長，難以在實際設計中應用。To reproduce the narrow - band response, based on the thought of kanamori etc., the damping ratio and natural period are modified. through this adjustment, the narrow - band response can be reproduced, but for some natural periods the adjustive damping ratio has become negative. the negative damping is strange and can not be explained by the equation of motion for sdof system
為了生成窄頻帶反應，本文根據kanamori等人的方法調整了計算時的阻尼比及自振周期，調整后的單邊差分方法能在共振區域生成很好的窄頻帶反應，但是對一些周期點的阻尼比調整成為了負值，這從系統的動力平衡方程是難以解釋的。The influence of various waterpower and configuration parameters on heat transfer is analysed and the rules of convective heat transfer coefficient and the ratio of heat transfer enhancement with mass flux are obtained. at the same time, we gain important results as below : as for resonance chamber with certain configuration, self - oscillation can be generated under suitable configuration and waterpower parameters. for the same configuration resonance chamber, the intensity of the self - oscillation is changed by the waterpower parameters
當流量及壓差降低至一定程度時，共振腔還可能削弱換熱；加熱功率的提高會增加流體（水）的溫度，流體的粘度會隨著降低，這會減少對流體脈動的阻礙，使脈動衰減得更慢，而脈動幅度的增加會增強換熱，故加熱功率對有脈動的對流換熱是有影響的；自振腔產生的流體脈動頻率是自振腔固有頻率或其整數倍，流體脈動頻率過高或過低都不利於對流換熱，存在一有利於強化換熱的頻率范圍。Firstly, the strain gauge method was used to measure the time difference of stress wave passing through two gauges adhered on the surface of test piece and also their main frequencies secondly, a 3 - component dynamometer was used to measure the resonant frequency of timber six kinds of full size timber were used for test
本研究旨在研發兩種新的應力波計測技術，其一為利用應變規來測定兩標點間之應力波傳遞時間差及試材之共振頻率，藉以計算試材之音速及動彈性系數，其二為利用三向動力計來測定試材之共振頻率。Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function
分析中可以發現，中心差分方法， newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的，中國地震局工程力學研究所頃土學位論文一但是中心差分方法， newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大，系統的固有自振周期被改變，其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。By the method of double - frequency acoustic excitations, experiments were conducted on the influences of phase differences between the fundamental and subharmonic waves upon the " subharmonic resonance " - the nonlinear interaction between the waves
用雙頻聲激勵方法，實驗研究了剪切流中基波及其亞諧波的相位差對「亞諧共振」非線性過程的影響。Different vibration characteristics between the two models are discussed. geometry mismatch in a turbine blade root, which arose in manufacturing process or caused by wearing out during service, leads to contact conditions changed in fir - tree attachments
汽輪機葉根製造尺寸誤差或運行磨損造成的尺寸改變會導致葉根與輪盤接觸狀態變化，進而引起葉片固有頻率發生漂移，並有可能接近共振頻率而導致葉片事故。In experimental, static response and frequency response of coupling acoustic / vibration optic fiber sensor have been analyzed. the results indicate that the response of the sensor to static pressure has high sensitivity. because the resonant frequency of different materials and structure is different, the sensor has maximum sensitivity in specific frequency
試驗研究中，對耦合型聲振動光纖傳感器的靜態響應特性和頻率響應特性進行了試驗分析，分析結果表明該類型傳感器對應變的響應非常靈敏，而對頻率的響應則由於材料及結構本身的共振頻率的差異有不同的峰值響應頻率。分享友人