MODAL ANALYSIS OF A THICK-WALLED CIRCULAR CYLINDER

✍ Scribed by R.K. SINGHAL; W. GUAN; K. WILLIAMS

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 264 KB
• Volume: 16
• Category: Article
• ISSN: 0888-3270
• DOI: 10.1006/mssp.2001.1420

✦ Synopsis

The objective of this paper is to "nd true descriptors for the mode shapes of circular cylinders. The vibrational behaviour of a thick-walled circular cylinder is of considerable engineering importance as such elements have numerous applications in electrical machines, sti!ened cylinders, and gears. Mode shapes are also very important sources of information for understanding and controlling the vibration of a structure. Theoretical and experimental modal analyses were carried out using a thick-walled circular cylinder model to obtain its natural frequencies and mode shapes. The theoretical modal analysis was done using the "nite element method. The results for the frequency range from 20 Hz to 20 kHz were veri"ed using experimental modal analysis. The correlation between the analytical and the experimental results is very good. The largest error for all frequencies is 4.05%, and less than 2% for most frequencies.