Fourier modal analysis on photonic structures with time-dependent perturbations

2012 ◽  
Author(s):  
Joonsoo Kim ◽  
Hyeonsoo Park ◽  
Hwi Kim ◽  
Byoungho Lee
Keyword(s):  
Modal Analysis ◽  
Time Dependent ◽  
Photonic Structures

scholarly journals Quantitative modal analysis of optical power flow and energy loss in photonic structures with a dipole emission source

2014 ◽  
Vol 22 (15) ◽  
pp. 18499
Author(s):  
Sujin Choi ◽  
Seungin Baek ◽  
Dajeong Im ◽  
Hyun Kook Kahng ◽  
Hwi Kim
Keyword(s):  
Energy Loss ◽  
Modal Analysis ◽  
Power Flow ◽  
Optical Power ◽  
Emission Source ◽  
Photonic Structures ◽  
Dipole Emission

Structure Response of Cable-Stayed Bridge that Is Used with a Known Earthquake Spectrum

2011 ◽  
Vol 250-253 ◽  
pp. 3397-3400
Author(s):  
Yong Bin Ma ◽  
Yong Feng Du
Keyword(s):  
Modal Analysis ◽  
Spectrum Analysis ◽  
Time History ◽  
Time Dependent ◽  
Wave Loads ◽  
Jet Engine ◽  
Structure Response ◽  
Cable Stayed Bridge ◽  
Engine Thrust ◽  
History Analysis

A spectrum analysis is one in which the results of a modal analysis are used with a known spectrum to calculate displacements and stresses in the model. It is mainly used in place of a time-history analysis to determine the response of structures to random or time-dependent loading conditions such as earthquakes, wind loads, ocean wave loads, jet engine thrust, rocket motor vibrations, and so on. The paper is to analysis displacements and stresses of a cable-stayed bridge that is used with a known earthquake spectrum.

Marine Riser Vibration Response Determined by Modal Analysis

1979 ◽  
Vol 101 (3) ◽  
pp. 159-166 ◽  
Author(s):  
D. W. Dareing ◽  
T. Huang
Keyword(s):  
Modal Analysis ◽  
Natural Vibration ◽  
Finite Difference Methods ◽  
Time Dependent ◽  
Vibration Modes ◽  
Analysis Method ◽  
Marine Riser ◽  
Eigenvalues And Eigenfunctions ◽  
Single Degree Of Freedom ◽  
Dependent Part

Marine riser response calculations are usually based on finite element or finite difference methods. This paper outlines the modal analysis method as an alternate approach for calculating marine riser time-dependent stresses. An example problem shows that five natural vibration modes give acceptable convergence and engineering accuracy. Dynamic response calculations are, therefore, greatly simplified as only a limited number of eigenvalues and eigenfunctions are needed. In addition, the time-dependent part of the solution can be determined from elementary single-degree-of-freedom-type equations.

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