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> Modal Analysis
gillesp
post Jul 20 2012, 12:07 PM
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QUOTE(Riddler7 @ May 27 2010, 05:35 PM) *

Hello everybody,

I have just finished to synthesize a model of an automotive drive train with Dymola (6.1). In order to validate my construction I would like to compute the first three Eigenfrequencies and Eigenvalues. Is there any preferably simple way to perform such a Modal Analysis?
Further details of my model: it mainly consists of twelve spring-damper-connected throwing bodies and contains some non-linear properties (characteristic spring curve, damping, backlash).

Thanks for any suggestions smile.gif


You can use the linearise function in order to get the ABCD matrix and then analyze them with Modelica linear library or with another software (Matlab...)
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Riddler7
post May 27 2010, 03:35 PM
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Hello everybody,

I have just finished to synthesize a model of an automotive drive train with Dymola (6.1). In order to validate my construction I would like to compute the first three Eigenfrequencies and Eigenvalues. Is there any preferably simple way to perform such a Modal Analysis?
Further details of my model: it mainly consists of twelve spring-damper-connected throwing bodies and contains some non-linear properties (characteristic spring curve, damping, backlash).

Thanks for any suggestions smile.gif
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