Counter-intuitive quasi-periodic motion in the autonomous vibration of cracked Timoshenko beams

✍ Scribed by J.A. Brandon; O.N.L. Abraham

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 890 KB
• Volume: 185
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1995.0389

✦ Synopsis

The time domain behaviour of a cracked Timoshenko beam is constructed by alternation of two linear models corresponding to the open and closed condition of the crack. It might be expected that a response which is composed of the alternation of two systems with different properties would extinguish the periodicities of the constituent sub-models. The numerical studies presented illustrate the perpetuation of these features without showing any evidence for the creation of periodicities based on a common assumption of the mean period of a bilinear model.