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Vibrations: Eigen Frequency Analysis

Posted Jan 16, 2014, 3:46 p.m. EST Version 4.3a 2 Replies

Shahid Saghir
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I understand that Eigenvalue=(Eigenfrequency)^2 , where eigenfrequency is is in Rad/second i.e angular velocity. To get cyclic frequency we divide eigenfrequency by 2 PI i.e. f (Hz)= eigenfrequency/2 PI .

Question1: What are the numbers COMSOL gives in Eigen frequency Analysis? are they Eigen values , Eigen Frequencies or cyclic frequency in Hz ?

Question2: How do I get Nondimensional Frequency of a plate using COMSOL?
2 Replies Last Post Jan 21, 2014, 4:33 a.m. EST
RVN
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Posted: 1 decade ago Jan 20, 2014, 4:57 a.m. EST

Question1: What are the numbers COMSOL gives in Eigen frequency Analysis? are they Eigen values , Eigen Frequencies or cyclic frequency in Hz ?


The Eigenfrequency study solves the eigenvalues for the system and gives the corresponding frequencies as solutions.

Hope this helps
--
/RVN
[QUOTE] Question1: What are the numbers COMSOL gives in Eigen frequency Analysis? are they Eigen values , Eigen Frequencies or cyclic frequency in Hz ? [/QUOTE] The Eigenfrequency study solves the eigenvalues for the system and gives the corresponding frequencies as solutions. Hope this helps -- /RVN
Shahid Saghir
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Posted: 1 decade ago Jan 21, 2014, 4:33 a.m. EST
ThankS /RVN, Could you please tell me if the frequencies are Rad/Sec or in Hz ?


Thanks
Shahid S
ThankS /RVN, Could you please tell me if the frequencies are Rad/Sec or in Hz ? Thanks Shahid S

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