EIGENFREQUENCY ANALYSIS OF THIN-WALLED GIRDERS CURVED IN PLAN

✍ Scribed by L.T. STAVRIDIS; G.T. MICHALTSOS

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 157 KB
• Volume: 227
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1999.2350

✦ Synopsis

An analytical procedure is proposed for the evaluation of the eigenfrequencies of a thin-walled beam curved in plan in response to transverse bending and torsion with various boundary conditions. The analysis is performed through the introduction of four non-dimensionalized geometric parameters which govern the dynamic behaviour of the beam. These parameters lead to an equally non-dimensionalized eigenfrequency parameter through an appropriate treatment of the di!erential equations on the basis of a computer program specially developed for this purpose. This program is also applied to investigate the in#uence of the aforementioned parameters on the eigenfrequency behaviour of a thin-walled girder.