Abstract
The SEA (statistical energy analysis) program developed at VTT’s Ship Laboratory is based on the network formulation equations presented in [1, 2]. The principles of the finite element programs have been applied in describing the steel structure of a ship. At present the program is able to handle two types of elements: a 2D flat plate element and a 3D acoustical space element. Different element types such as a beam and a stiffened plate element will be later added to the program under development. Structure-borne sound transmission is calculated in 1/3 octave bands with centre frequencies 50 Hz … 10 kHz. Cabin noise is calculated in octave bands with centre frequencies 63 Hz … 8 kHz. Input data is assumed to be available in the same frequency bands. Number of elements and cabins is only restricted by the computer system used.
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