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Please help me .

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- Thread starter anoopsrikanth
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- #1

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Please help me .

- #2

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Please help me .

Number of modes depends on number of degrees of freedom.

- #3

AlephZero

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You need all the modes in the frequency range that you are interested in, plus a safety margin. Including modes up to 2x or 3x the highest frequency you want to study is often a reasonable choice. If you have many modes with closely spaced frequencies, you need to be careful about this - for example run the model with different numbers of modes and check the results are similar.

The total number of degrees of freedom in the model (or the real-world structure) is irrelevant. The number of modes used is often much smaller. One of the advantages of modal models is that they can give good accuracy with a small model size, once you have found the mode shapes and frequencies (and that only needs to be done once).

- #4

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what is g-load analysis doing a chassies g-load analysis for condition lcf 5g-x,5g-z and 4g-y help me what actually it means.

possiblly with somw simple example

- #5

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I need the MATLAB code for modal analysis of a MDOF system.please help me

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