equations of motions for 3DOFs obtained.(adsbygoogle = window.adsbygoogle || []).push({});

but how do i solve for e 6 unknows: m1 m2 m3 k1 k2 k3 using the ECP system?

Equations formulated as below:

[A] { m1 }

{ m2 }

{ m3 } = [F]

{ k1 }

{ k2 }

{ k3 }

where [A] is a 6 by 9 matrix: first 3 rows at freq w1, next 3 rows at w2, last 3 rows at w3

[F] (1 by 9 matrix) : is the applied force for each sinosindual excitation under 3 diff frequencies.

Natural freq of this 3DOFs was obtained and excited with sinosindual by input-ing at each of these 3 natural frequency (hence able to find amplitude of these vibrations, but so many amplitudes, which 1 to select???). And how should I go about solving the 6 unknowns?

Can anyone help me?

Thanks.

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# How to solve 3DOFs using ECP system?

Can you offer guidance or do you also need help?

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