Transmissibility matrix in harmonic and random processes

Article type: Research Article

Authors: Fontul, M. | Ribeiro, A.M.R. | Silva, J.M.M. | Maia, N.M.M.

Affiliations: Instituto Superior Técnico, Departamento de Engenharia Mecânica, Av. Rovisco Pais, 1049-001 Lisboa, Portugal

Note: [] Corresponding author. E-mail: jms@alfa.ist.utl.pt

Abstract: The transmissibility concept may be generalized to multi-degree-of-freedom systems with multiple random excitations. This generalization involves the definition of a transmissibility matrix, relating two sets of responses when the structure is subjected to excitation at a given set of coordinates. Applying such a concept to an experimental example is the easiest way to validate this method.

Keywords: transmissibility, random vibration, spectral density, modal analysis, structural dynamics

Journal: Shock and Vibration, vol. 11, no. 5-6, pp. 563-571, 2004