VIBRATION AND STABILITY OF ROTATING POLAR ORTHOTROPIC ANNULAR DISKS SUBJECTED TO A STATIONARY CONCENTRATED TRANSVERSE LOAD

✍ Scribed by D.-S. LIANG; H.-J. WANG; L.-W. CHEN

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 293 KB
• Volume: 250
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.2001.3951

✦ Synopsis

In the present paper, natural frequencies and stability of a spinning polar orthotropic disk subjected to a stationary concentrated transverse load are investigated. The analysis of the free vibration of a spinning disk is performed "rst to "nd natural frequencies and corresponding vibration modes. The resulting eigenfunctions obtained from the free vibration are used as de#ection functions of the forced vibration of a disk where the load is modelled as a mass}spring}dashpot system "xed in space. By using the Galerkin approximation method, eigenvalues of the whole system are determined. Results show that disks with higher values of modulus ratios or the Poisson ratios have higher natural frequencies, and the stability of the whole system can be improved by raising the value of the modulus ratio or lowering that of the Poisson ratio.

2002 Elsevier Science Ltd.