Dynamic finite element model improvement of a PCB structure

Authors
Citation
Jh. Ong et Gh. Lim, Dynamic finite element model improvement of a PCB structure, J VIB CONTR, 5(1), 1999, pp. 57-74
Citations number
15
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF VIBRATION AND CONTROL
ISSN journal
10775463 → ACNP
Volume
5
Issue
1
Year of publication
1999
Pages
57 - 74
Database
ISI
SICI code
1077-5463(199901)5:1<57:DFEMIO>2.0.ZU;2-R
Abstract
The purpose of this research is to apply an eigensensitivity-based method t o develop an accurate representation of the in-service boundary conditions of structures. By implementing the method on a printed circuit board (PCB) supported on its three edges by two opposite wedge retainers and a plug-in connector, it is shown to be effective in producing an accurate finite elem ent model of the PCB structure. The result shows that the percentage error in the fundamental frequency of the PCB finite element model is substantial ly reduced from 22.3% to 1.3%. Furthermore, convergence to an accurate fini te element model is found to be rapid.