amplitude coefficient 中文意思是什麼

amplitude coefficient 解釋
振幅系數
  • amplitude : n. 1. 廣闊，廣大。2. 豐富，充足。3. （思想的）廣度。4. （天體出沒時偏離正東或正西的）角度距離。5. 【物，電】振幅。
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull

    本文的研究分為二個部分：首先利用frank源匯法計算水動力系數，計算包括不同吃水時的附加質量和阻尼系數，吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水；然後建立和求解船舶大幅度運動方程，在實際計算時一方面考慮了運動模態之間的耦合，另一方面在計算水動力時，考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化，靜浮力的計算精確到船體瞬時濕表面積，最後用四階龍格?庫塔方法在時域內求解船舶運動方程，並進行了載荷計算。
  2. The resuts showed that the annual average temperature had an increasing trend ; summer, autumn and winter average temperature also had an increasing trend and the amplitude in winter was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients of skewness were positive value during summer and autumn ; the kurtosis coefficients were bigger during winter

    得出如下結論：和田地區年氣溫有增加的趨勢；夏季、秋季、冬季氣溫也有增加的趨勢且冬季氣溫值增幅較大；標準差及變差系數都是冬季變化較為劇烈；偏度系數在夏季及秋季為正值；峰度系數值在冬季較大。
  3. The results indicated that the generation of trailing - vortex of downstream adjacent vanes could be restrained effectively by upstream wake when the passing frequency and the amplitude of wake defect satisfy some conditions, associated with a significant enhancement of time - averaged aerodynamic performances : loss coefficient reducing 40. 2 % and the ratio of loading coefficient and loss coefficient increasing 93 %

    研究表明：滿足一定通過頻率和虧損幅值條件的尾跡能夠有效抑制下游相鄰葉排尾緣渦的生成，達到控制或是推遲附面層非定常分離的目的，從而使得流場時均性能大幅度的提高，損失系數降低了40 . 2 % ，功損比增加93 % 。
  4. A method is put forward which selects modal dofs in a few points according to element strain energy coefficient. therefore, the selected modal dofs in a few points usually have large amplitude, which is conducive to be measured and the network training

    在選取少數節點的振型分量用於網路訓練時，提出根據單元應變能系數的大小來選擇節點，這些節點一般來講在振動中振幅較大，易於實測和用於網路訓練。
  5. This paper deals with seismic analysis of an immersed tunnel using the travelling wave method the objective of the analysis is to obtain the maximum stresses in the tunnel body and the relative displacements at the joints for design purpose in analysis ， the axial and transverse input waves are treated as two independent waves with different amplitudes and periods the method has been found to have the advantages of simplicity and clearness in physical concepts however ， reasonableness of the prediction by the method depends largely on the input data ， such as the wave amplitude ， the wave length ， the propergation speed of the travelling wave as well as the reaction coefficient of the ground thus ， determination of the input data is discussed in detail finally ， the method is applied to analysis of huangsha - fangcun immersed tunnel across the pearl river in guangzhou

    將行波法應用到剛度較大、分段較多的水下沉管隧道的地震分析中，提出把軸向、橫向兩個輸入波處理為兩個獨立的行波的方法行波法是否符合實際，與輸入地震波的有關參數及地基系數選取有很大關系，作者對此進行了比較深入的討論，使輸入參數的選取簡單、明確，便於對計算結果進行分析與判斷最後應用此法對珠江水下隧道的工程實例進行了計算
  6. A new kind of generalized energy is proposed as the lyapunov function, and thereby resulting in a new criterion of generalized nonlinear symmetric stability. it shows that not only must the dissipative coefficient be greater than a certain critical value but the initial disturbance amplitude must be synchronously smaller than another marginal value as well

    從含摩擦耗散的f平面上boussinesq近似下的非線性方程組出發，提出了一種新的廣義能量作為lyapunov函數，導得了一種新的非線性對稱穩定性判據：即不僅耗散系數大於某一臨界值而且同時初始擾動振幅小於另一臨界值。
  7. The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one

    在前人研究的基礎上，本文基於陳龍珠等曾提出的一組實用飽和土波動方程，用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉振動問題，主要工作有：對于飽和地基上剛性圓板的扭轉振動，作者首先採用hankel變換求解了動力控制方程，得到了該控制方程在hankel變換域內的通解，然後由混合邊值條件建立了飽和地基上剛性基礎扭轉振動時的對偶積分方程，並將其化為易於數值求解的第二類fredholm積分方程，用數值方法計算了基礎的動柔度和扭轉角幅值與振動頻率的關系曲線，並將其與單相彈性介質情況進行了對比分析。
  8. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。
  9. Fatigue test indicates that strain multiplier have not been damaged for fatigue in the service life of fatigue life gage, fatigue response of fatigue life gage can be derived from the strain amplitude equal to specimen strain multiplied by amplification coefficient of strain multiplier

    疲勞實驗研究表明，在疲勞壽命計工作壽命內，應變倍增器無疲勞破壞情況，疲勞壽命計疲勞響應可由靜載標定放大倍數乘試件表面應變后所對應的等幅應變值得到。
  10. Based on equivalent four - terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied

    摘要在負載為純力抗的狀況下，利用縱振型變幅桿等效四端網路，對頻率方程和放大系數進行了研究。
  11. The formulas of three kinds of loaded ultrasonic transformers are presented ; then, the graphs of resonance frequency and the amplitude magnification coefficient, following the change of load, are charted by the programs of matlab

    得到了三類常用變幅桿頻率方程和放大系數的表達式；並通過matlab編程，分別繪制了三類變幅桿共振頻率及放大系數隨負載變化的曲線圖。
  12. The relationship between mutual coefficient errors and the amplitude and phase errors of channels

    互耦系數誤差與通道幅相誤差的等效關系
  13. Abstract : the optical admittance of a single - layer film is derived from the characteristic matrix of the film pile. based on the single - layer, recurring layer by layer, supercomposing one by one, deriving the equivalent admittance of the film pile and calculating the reflect coefficient of the amplitude, the reflectivity and transmissivity of hte whole film system is derived at last

    文摘:根據膜堆的特徵矩陣，求出單層膜的光學導納，在單層膜的基礎上，進行層層遞推，疊加起來，求出膜堆的等效導納，計算振幅反射系數，最後求出整個膜系的反射率、透射率。
  14. These are correlation characteristic parameter, fourier spectrum characteristic parameter, power spectrum characteristic parameter, time domain amplitude characteristic parameter, linear prediction coding coefficients, instantaneous characteristic parameter, absorb and decay coefficient, velocity characteristic parameter and wavelet packet transform characteristic parameter. the parameters contain the surface relatively wide, the prediction which is suitable for the goal of many kinds of seism needs

    分別為：自相關特徵參數、付立葉譜特徵參數、功率譜特徵參數、時域振幅特徵參數、線性預測編碼系數、瞬時特徵參數、吸收衰減系數、速度類特徵參數和小波包變換特徵參數，參數涵蓋面較寬，適用於多種地質目標的預測需要。
  15. The study shows that rock stress sensitivity has the following characteristics : rock property has little sensitivity to stress, of which porosity has the least, permeability less, and compression coefficient most ; the rock property decreases with formation pressure decrease ; in the same formation pressure drop, decrease amplitude of the rock property is not a continuous function of permeability but related to distribution scope of permeability

    研究得出，巖石的應力敏感性特徵主要有：巖石物性對應力的敏感性總體上不大，其中以孔隙度最小，滲透率次之，壓縮系數最大；巖石物性隨地層壓力的下降而下降；在同一地層壓降下，巖石物性下降幅度不是滲透率的連續函數，而是與滲透率分佈范圍有關，高滲透率范圍，巖石物性下降幅度小，低滲透率范圍，巖石物性下降幅度大。
  16. With increase of the climate variability, the amplitude of increased yield simulated would be reduced. and the variation coefficient ( vc ) of the simulated yields and their instability would also increase

    但隨著氣候變率的增大，模擬產量的增幅明顯變小，產量變異系數增大，穩產性變差。
  17. Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are

    其次，我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動，主要結論如下：影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數；耦合系數越大，軸向應力、軸向力以及軸向彎矩越小。
  18. One of the inequalities is that the initial disturbance amplitude is more than a critical value, and the other is that the frictional coefficient is more than another critical value

    初始擾動振幅大於某一臨界值； （ 2 ）摩擦系數大於某一臨界值，前者對後者有很強的約束。
  19. After introducing fractal theory and its foundation, the feasibility and advantages of fractal analysis for surface characterization were presented. the calculation and physical properties of fractal dimension d and amplitude coefficient c were also presented

    本文首先介紹了分形理論及其數學基礎，指出了用分形方法來描述機加工表面的可行性和優越性，並重點闡述了分形維數和尺度系數的計算方法及其各自的物理意義。
  20. Three different compensators are discussed respectively by means of both parameters of reflective amplitude coefficient ratio

    引入反射振幅系數比的兩個參數分別對這3種不同結構組成的補償器進行討論。
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