Gumang
Subscriber
Hey Erik (ekoston), nBut I actually get rigid body movement for certain frequencies in Modal Acoustics. For example: as shown in the Screenshot below at 152,04 Hz. nSo in order to find the natural frequencies of a structure surrounded by a fluid one has to look for pure structural modes and ignore the acoustic and coupled modes? nThank you very much for replying.nRegards nUmangnn