harmonic expansion 中文意思是什麼

harmonic expansion 解釋
調和函數展開
  • harmonic : n 1 【音樂】泛音；和聲。2 〈 pl 〉【數學】諧函數，調和函數。3 【物理學】諧波，諧音。adj 1 和睦的...
  • expansion : n 1 張開，伸展。2 擴大；擴建；展開；發展。3 廣袤，遼闊。4 擴張物，擴大部分。5 （講題等的）詳述，...
  1. Quark medium is regarded as non - harmonic oscillator model, discussing its response to su ( 2 ) non - abelia field, the perturlation expansion method is used to find the first, second and third order approximate solutions to the response equation, and some nonlinear features of the response are preliminarily displayed

    將夸克介質視為非簡諧振子模型，討論了它對su （ 2 ）非阿貝爾場的響應，採用微擾迭代法解出了方程的一、二、三級近似解，初步得出了這種響應的一些非線性特徵
  2. Then experiment was processed to testify the calculated results. based on the theory of vibration mode, harmonic response and experiment, fea meshing, fea element and bound condition of expansion joint were analyzed. then a parametric fea modeling & post process software was developed by apdl and visual basic langrage

    本文採用有限元數值分析方法，利用大型商用有限元計算軟體ansys ，研究了基於結構參數化設計思想的波紋管膨脹節的振動模態和含波紋管膨脹節管系的振動響應分析方法，開展了波紋管膨脹節模態試驗驗證。
  3. Research methods of expansion joint ' s mode and harmonic response were systemically studied and a fea modeling & post process software for project designer was built in this article. and it may contribute much to theory and project practice for expansion joint

    本文工作不僅較系統地完成了波紋管膨脹節振動模態與響應分析方法的研究，還為工程設計人員提供了基於參數化的有限元建模及后處理軟體，具有一定的理論意義和重要的工程應用價值。
  4. Expansion joint was one of the most important parts of pipe system. it can close the vibration off in pipe system and absorb the displacement caused by stress, axial force, transverse force and temperature grads. based on fea parametric analysis, ansys was used to study the mode and harmonic response of expansion joint in this article

    波紋管膨脹節是管系中的重要組成部件，它不僅能夠吸收由壓力、軸向力、橫向力、彎矩以及溫差等原因引起的位移，還可作為隔振元件用於管系的減振隔振。
  5. Based on the assumption of periodic rubbing force in rotor system, the rubbing forces onto each node of rotor system are estimated by modal expansion technique and the sub - harmonic decomposition of residual matrix between faulty and faulty - free vibration signals of rotor system through fft ( fast fourier transformation )

    基於轉子系統碰摩力的周期性假設，利用模態擴展方法，對故障和健康轉子系統振動信號的殘差矩陣進行傅立葉級數的分頻諧波近似，估算得到轉子軸承各節點的碰摩力。
  6. The initial solutions of two - dimensional harmonic waves are given by landau expansion and the mean - flow - distortion is calculated by the approximation equation. furthermore, we employ iteration method and “ predictor - corrector approach ” to solve the nonlinear equations in order to implement the marching procedure, and the result of nonlinear two - dimensional stability is obtained precisely. the effect of pressure gradient is also studied here

    文中所發展的數值方法，包括採用landau展開給出二維諧波的初始解、模擬流場的均流變形以及採用迭代和預估校正方法實現非線性方程的求解和推進，得到了二維擾動的非平行非線性穩定性的精確結果。
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