I am looking for a purely experimental method to determine the mass matrix of a ship in three degrees of freedom using manoeuvres in open water.
I just found:
Skjetne, Smogeli, Fossen:
The zero frequency added mass coefficents can be found from semi-empirical formulas, simple engineering rules of thumb or strip theory.
Do Thanh Sen, Tran Canh Vinh:
For a particular ship, it can be obtained by experimental method. However, the experimental method is limited and cannot solve all added mass components.
I am looking for a practical method which is better than estimating all 9 parameters at once by non-linear optimization.
I would be very happy if you have any suggestions.
If you are thinking about model scale, I would advise to perform experimental forced oscillation tests at the frequencies of interest and DoF.
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