mode shape 中文意思是什麼

mode shape 解釋
振蕩形式
  • mode : n 1 法，樣，方法，方式。2 模，型；樣式，體裁，款式；習慣。3 風尚；〈the mode〉流行，時髦。4 【語...
  • shape : Shape＝Supreme Headquarters Allied Powers in Europe （北大西洋公約組織的）歐洲盟軍最高司令部。n 1...
  1. Structure damage detection based on mode shape

    基於模態振型的結構損傷識別
  2. 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。
  3. B 、 analyzing the vibration properties ( mode shape 、 frequency. etc ) of the structure. at first, for examining the influence of soil reaction to structure the analysis was made up of two parts that one is taking account of soil - structure reaction in analysis and the other is the opposition. next, when structure suffer different earthquake shaking the modes of structure is different due to unequal restraint of soil to structure movement

    首先，為了考察土體結構的作用對結構的動力特性影響程度，分析了不考慮土體對結構作用和考慮土體對結構作用兩種情況下結構的模態；其次，在不同強度的地震作用下，土體對結構的約束作用大小不同，因此結構在不同強度地震荷載作用下具有不同模態。
  4. To reduce the number of design variables, the sensitivity of both natural frequency and mode shape vector to component geometry parameters were derived respectively

    為優選設計變量，分別推導了固有頻率和振型矢量對其幾何參數的靈敏度公式。
  5. This system has a post - processing module which can generate natural mode shape

    系統還配有較強的后處理圖形生成模塊，可以形象逼真地繪制出振型圖。
  6. However, it is found that the second or the third order mode shape rather than the first order, are responsible for the seismic responses on free surface under many case in this paper

    然而採用等效非線性化直接分析士層地震反應的實例計算結果表明在很多情況下，對場地地震反應起主要作用的不是第一振型而是第二、三階振型。
  7. The mode shape equation for the case with bottom fixed and top simply supported can not be presented in simply periodic forms. therefore, a program msewz with matlab6. 1 is presented by author to determine and select the rational mode shape equations

    對於一端固定、一端簡支的邊界條件，因變形函數不能用簡單的周期形式表示，筆者用matlab6 . 1編制了程序msewz ，通過判斷確定出合理的變形函數。
  8. Analysis of fundamental mode shape expressions of tall buildings for evaluating wind loads

    高層建築風荷載計算中的基本振型表達式分析
  9. Constracting the axial stiffness of arbitrary supported rod from fundamental mode shape

    由基模態構造任意支撐桿的多項式型軸向剛度
  10. Chapter 4 presents a detailed analysis of low frequency inter - area oscillations of the south china interconnected power system for the year of 2005 based on the eigenvalue analysis method. participation factors and mode shape diagrams of generators related to the inter - area oscillations are figured out, and locations of pss are determined accordingly, the parameter setting for the pss is studied as well

    採用特徵值分析法詳細分析了2005年夏大運行方式下南方電網的低頻振蕩特性，計算了對應主要振蕩模式的發電機參與因子和模態分布圖，並根據參與因子的大小研究了南方電網的pss配置方案及其參數整定。
  11. As a classical and practical method in ambient vibration experimental modal analysis, auto - cross spectrum density method replace the frequency response function with power spectrum and achieve its mode shape from transmissibility between the response signals and reference signal

    自互譜法作為環境激勵實驗模態分析的一種實用的經典方法，用響應點和參考點間的功率譜曲線來代替頻響函數曲線，並由響應點和參考點之間響應的傳遞率得出振型。
  12. Through analyzing the optimal ribs topological, the conclusion could be drawn that it will gain better result to place the ribs paralleled with the first bending mode shape of the bracket

    從加強筋的優化結果來看，在平行於一階彎曲振型方向上布置加強筋，可獲得較好的效果。
  13. Firstly, frequencies of each mode shape are gained through frequency spectrum analysis of time domain signals of key points. secondly, time domain signals, which correspond to structural mode shapes, are gained through band - pass filter technology. lastly, the corresponding mode shapes of each natural frequency are constructed by using time domain signals, which are processed by band - pass filter technology

    該方法的基本思想是先通過對關鍵點處時域信號進行譜分析得到結構各階振型對應的固有頻率，然後通過帶通濾波技術得到結構關鍵點在每階固有頻率下對應的時域信號，最後用濾波后時域信號構建結構在每階固有頻率下對應的振型。
  14. These phenomena are roots of the unsteady excitation. ansys was used to solve the structure dynamic equations to obtain the natural frequency of vibration and mode shape of the blade

    本文應用工程軟體ansys完成了葉片的振型和自振頻率分析，結合數值計算得出的氣動激擾，進行了葉片的共振分析。
  15. For vibration mode - shape, this affect is more severity on high rank stage vibration than low. with opened hollow and pier added on dam, the frequency of vibration decline. although the array of low rank vibration mode - shape is changed, the dynamic characteristic of the dam not in evidence change

    對于振型而言，這種影響對低階振型比高階振型大，考慮孔口和閘墩后，大壩的自振頻率有所降低；在低階振型中有一部分的排列順序（大小關系）發生了變化，但這些變化不致使大壩的動力特性發生顯著的改變。
  16. On basis of this property a new type of coherence function was proposed and a simplified method of analyzing structure ' s wind - induced response and equivalent load was proposed. wind tunnel experiments with the caarc standard tall building model was executed to verify the proposed method with the dynamic balance technique. the comparisons show the good agreement on the basis of linear mode shape assumption that is used in balance technique

    按照簡化方法計算的基底傾覆彎矩功率譜、基底彎矩響應、頂部加速度和位移響應等參數均能與高頻底座天平試驗的結果較好的符合，等效設計荷載的計算結果也與按照《建築結構荷載規范》的計算結果具有一定的可比性。
  17. In this paper, the method combined with curvature mode shape, finite element method ( fem ), artificial neural networks ( ann ) and genetic algorithms ( ga ) is applied. the optimization of a taper trunk beam of variable cross section under impact load can be obtained on the base of considering the objectives of minimum gross mass and the condition of constrain of dynamic stress

    本文採用了曲率模態、有限元、神經網路和遺傳演算法相互結合的方法，對承受沖擊載荷作用的變截面懸臂箱型梁，在動應力滿足材料許用應力的約束下，以質量最小為目標函數，做了優化設計方面的研究。
  18. The open research issues and projects are also pointed out in this field. then, wireless sensor network experiment system design draft is shown in the paper, which includes sensor node constitution, base station communication mode, shape of the meshwork topology, control center software and so on

    本文研究內容是根據網路化的戰場感知微型傳感器課題設計要求提出的，通過對無線傳感器網路技術動態與發展的掌握了解，在傳感器網路實現技術上進行探索與實踐。
  19. By using of the frequency, which is more accurate than the mode shape, the fully nonlinear identification algorithm using the frequency data was coupled with the flexibility projection method to estimate the magnitude of damage in a structure

    將結構損傷識別的完全非線性演算法與柔度投影法結合，利用頻率觀測數據較為精確的特點，使用混合法研究了數據誤差條件下的損傷識別問題。
  20. Muti - aperture overlap - scanning technique ( maost ) and target function can solve the problem of testing a large optical surface on the basis of ordinary digital interferometer of wavefront, and get the most information of wavefront in the end in the condition of big kr, muti - aperture overlap - scanning technique ( maost ) using target function is proved and we can get the most information of wavefront in the case of guarantee of high precision by the aid of simulation, experimental and tests, many influential factors, i. e., the apertureconnection mode, shape of mirror, error in subaperture test and kr are analysed contribute to controlling and testing large optical surface

    本文首先在較大孔徑放大系數（ 4 ）的情況下，論證了目標函數多孔徑拼接技術，保證了較高的精度，得到較完整的波前信息。然後，結合實驗結果，從拼接模式、被測面形、測量誤差、數字干涉儀解析度和不同孔徑放大系數等角度出發，分析了各種因素對精度的影響，並詳盡的探討了各種誤差源，包括靜態誤差、動態誤差、擬合誤差、拼接誤差。
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