諧波響應法 的英文怎麼說
中文拼音 [xiébōxiǎngyīngfǎ]
諧波響應法
英文
harmonic response method- 諧 : Ⅰ形容詞1 (和諧) in harmony; in accord; in tune 2 (詼諧) humorous Ⅱ動詞(商量好; 辦妥) come t...
- 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...
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
-
First, the harmonic analysis method based on fft is discussed, and some practical issues in the application of fft are investigated. the factors which affect the calculation precision of harmonics, such as sampling and weighting of window function, are analyzed, and then the instructive conclusions for designing voltage monitor are obtained
首先闡述了基於fft的諧波分析方法,對fft實際應用中的問題進行了研究,通過實際算例探討了采樣方法、窗函數加權等影響諧波計算精度的因素,得到了對電壓質量監測儀的設計具有指導意義的結論。Because massive harmonic interference in the electrical network, it causes signal - sampling to include the very big harmonic in the measurement system, for eliminating measurement result influence by harmonic, the paper has an in - depth study of fourier transformation harmonics analysis measurement principle, analysis the forming reasons of frequency spectrum leakage and railing effect during measurement, achieves phase locked loop and frequency multiplier technique to realize integer - period synchronous sampling and eliminate impact of frequency spectrum leakage and railing effect in the result of measurement, and investigates in depth theory on phase locked loop and frequency multiplier technique, gives the method of realizing phase locked loop and frequency multiplier technique
由於電網中存在大量的諧波干擾,導致測量系統中取樣信號也含有很大的諧波,為了消除諧波對測量結果的影響,論文深入研究了傅立葉變換諧波分析法的測量原理,分析了測量中頻譜泄漏和柵欄效應形成的原因,提出了採用鎖相環倍頻技術實現信號的整周期同步采樣,消除頻譜泄漏和柵欄效應對測量結果的影響,並對鎖相環倍頻技術的理論進行了深入研究,給出鎖相環倍頻技術的實現方法。There is nearly no research on using active control method to reduce ship structural vibration stirred by slamming. this thesis studied theoretically on active cable and active tuned mass damper which were designed on the base of lqr theory. then the thesis studied concretely on the validity of active cable by an example
本論文對船舶結構波浪砰擊響應的主動控制方法進行了研究,主要對基於線性二次型最優控制原理設計出來的主動纜作動器和主動式調諧阻尼器兩種控制器做了理論原理和作動器構成上的探討,並進一步研究了主動纜作動器運用於船舶因波浪砰擊引起的結構振動控制的有效性。Due to temperature performance of fbg, a reference fbg is adopted to compensate temperature and the compensation principle is expounded. moreover, this scheme not only realizes temperature compensation but also reduces repeatability error of ffptf and errors from power fluctuation of light source, noise of pd and noise of electro - circuit. in the end, temperature and strain performance of fbg is tested and
基於光纖光柵的溫度響應特性,提出用一個參考光柵來進行光纖光柵傳感陣列溫度補償的設計方案,並論述了其補償原理,證明了該方法的可行性;同時可以看出,該方法不僅可以實現溫度補償,也可以減小光纖f - p可調諧濾波器的重復性誤差以及光源功率波動、探測器噪聲和電路噪聲等引起的誤差。It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast
通過對這四種小波的結構地震反應分析研究說明: littlewood ? paley小波不適合於用來作結構地震反應分析,因為在littlewood ? paley小波下的結構地震反應太小,不符合實際情況;用meyer小波作結構地震反應分析比較合適,和有限元法的結果比較接近;也可以用諧波小波來作結構地震反應分析,只是在諧波小波下的結果略為偏大;單邊指數小波下的結構地震反應分析比有限元法稍大一點,它通過小波變換大大簡化了結構地震反應分析。用小波變換方法來進行結構地震反應分析和以往方法不同的是:它不僅可以知道地震波的具體頻率段對結構反應的影響,而且同時考慮了地震波的幅值非平穩性以及頻率非平穩性;另外與以前方法得到的結果有差異的是,第二振型及以後的高一點的振型的反應沒有以前的方法衰減得快。With the fdtd method to solve the maxwell equations, with the finite - volume method to solve the n - s equations and with the single temperature local thermal equilibrium to solve plasma, first time to adopt the method of all numerical simulation, the coupling flow field of microwave plasma within resonant cavity of mpt was analyzed. for tm011 model and tem model, the matching relation between various parameters and its influence on the coupling flow field of microwave plasma within resonant cavity of mpt was studied separately. the reasonable selection of miniaturization design parameters was pointed out in the numerical simulation to be used in mpt miniaturization, i. e. throat, gas flux and microwave power should be smaller suitable after miniaturization
採用fdtd法求解maxwell方程、有限體積法求解n - s方程、單溫度局域熱平衡模型求解等離子體參數,首次用全數值方法對mpt諧振腔進行了微波等離子體耦合流場的數值模擬,分別分析了tm _ ( 011 )和tem兩種模式各自的參數匹配關系及其對微波等離子體流場的影響;應用於小型化mpt時,指出了小型化設計參數的合理選取,即:小型化后的mpt ,喉徑小、工質流量小,消耗的微波功率也小。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensation performance is not affected by the impedance of power grid, it has advantages as follows, fast response, high controllability and adaptability, etc. brief illuminations of advantages and disadvantages are performed to various harmful current detecting methods and control techniques
它可實現對諧波和無功的動態補償,其補償特性不受系統阻抗的影響,具有響應快、可控性高、自適應性強等優點。本文對有源電力濾波器的各種諧波電流檢測法及控制方法進行了簡要的優缺點說明。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensate performance is not affected by the impedance of the electric network, it has advantages as follows, fast response, high controllability and adaptability, etc. analysis is performed to existing main circuit topology, harmful current detecting method and current tracking control of apf in this paper
有源電力濾波器可實現對諧波和無功的動態補償,其補償特性不受系統阻抗的影響,具有響應快、可控性高、自適應性強等優點。本文對現有的有源電力濾波器的各種主電路拓撲、畸變電流檢測和電流跟蹤控制方法進行了分析。This paper is based on the pingpong bridge field ground protection, it presents one point to ground protection scheme which include the self - checking method of switches. the two point to ground protection scheme presents self - adapting fault location warp criterion after evaluating the effect on the calculation of fault location made by the change of transient resistance in the process of bridge switch. in order to make up the shortcoming of location warp criterion, this paper presents a comprehensive scheme into which integrate the second harmonic criterion
本文針對乒乓式保護,結合開關自檢方法提出了完整的一點接地保護方案:在兩點接地保護方案中估算了開關切換過程中過渡電阻變化對接地點位置計算的影響,提出了故障位置偏差式兩點接地的自適應判據,為了彌補該判據的缺陷,提出了結合二次諧波輔助判據的綜合方案。In the paper, by using the incremental harmonic balance method ( ihb ), the viscous damped bilinear hysteretic isolation system with cubic restoring force on flexible foundation is studied and the influnce of flexible foundation on displacement transmissibility is investigated
摘要本文運用增量諧波平衡( ihb )法研究了安裝于柔性基礎上的含有三次非線性粘性阻尼雙線性滯遲隔振系統,考察了基礎柔性對隔振性能的重要影響作用,為這類干摩擦隔振系統在工程上的實際應用提供了理論依據。Secondly, the modification function and resonance produced by running power capacitor increased the harmonic at the same time, which worsen the operation environment of itself. it is very important to analyze the reason of harmonic and conduct the valid measure to restrain its affect and guarantee the safely operation of power network. the author has present the point in this paper, based on the operation characteristic of modern power system, the author described the production and development of network harmonic with the consideration on the same kind of problem
本文以現代電力網路的運行特點為基礎,結合近年來對所涉及的同類問題的思考,對系統諧波的產生、發展的一般規律進行較為全面的理論闡述;以大量事故案例分析諧波所帶來的危害和影響;通過實地測試和對所得數據的分析研究,推導出一種應用matlab的fft的諧波分析方法,給出了該方法的程序流程框圖及結果界面顯示;在此基礎上進一步探討了利用現代通信網路建立電網諧波網路管理分析系統的總體構想和功能。Because of strong nonlinear constitute relation, the response calculation methods are noticed by many scientists. incremental harmonic balanced method ( ihb ) is one of the widely used methods
干摩擦隔振系統由於具有強非線性本構關系,它的響應計算問題被人們所關注,目前應用較多的是增量諧波平衡法( ihb ) 。The response calculation of labyrinth gas seals with damping sleeve is done by the time - frequency transition method, which includes of the merits of harmonic balance method, dynamic softness method and tracking motion method
採用一種將柔度系數法、諧波平衡法與求解摩擦力的數值跟蹤法相結合的時頻轉換方法,對帶阻尼套筒的蓖齒封嚴結構的響應進行計算。Sixth, low - order natural frequency has being obtained by the mode analysis experiment of machine tools, the dynamic parameters of combination surface jointed by bolts were identified by the synthesis of fea, optimal algorithm and harmonic response analysis
6 .研究了如何利用由實驗模態分析測得整機的低階固有頻率,通過將有限元分析和優化演算法、諧波響應分析相結合的方法,完成螺栓聯接結合面的參數識別問題。In order to decrease the harmonics in mc ' s input and output current, the svm method and sinusoidal hysteretic band method are introduced into the mc hysteretic control respectively. secondly, based on the predictive current control fundamental principle, the particular 27 vectors predictive current control strategy and current trend predictive control strategy are proposed. the simulation indicates that all of the current methods can improve the mc ' s output current quality and speed its dynastic response
提出了矩陣變換器的滯環電流控制策略,並針對滯環控制時輸入電流和輸出電流的諧波,分別提出了輸入電流空間矢量合成滯環控制方法和正弦環寬滯環控制方法;引入了矩陣變換器的預測電流控制新思路,在此基礎上,提出了矩陣變換器獨特的27矢量預測電流控制方法和趨勢型預測電流控制方法,模擬結果表明,各種電流控制方法提高了變換器的輸出電流品質,加快了變換器的動態響應性能。分享友人