JOURNAL OF SOUND AND VIBRATION, vol.290, pp.1322-1332, 2006 (SCI-Expanded)
This communication is concerned with torsional vibrations of an elastic bar of given length and torsional rigidity to which several discs are attached. For fixed-free and fixed-fixed cases, formulas for the sums of the squared reciprocal eigenfrequencies of the vibrational system are established. (c) 2005 Elsevier Ltd. All rights reserved.