Table 2: Comparison of a rotating beam for natural frequencies and modal damping ratio obtained herein with those of [26] (  mm,  mm,  mm,  mm,  mm, .

Angular velocityNatural frequencyModal damping ratio
(r.p.m)  (Hz)  (Hz)

0 Ref.20.15104.00.03820.0235
Present20.14103.90.03840.0233
600 Ref.20.58106.80.03650.0220
Present20.53106.60.03660.0222
1000 Ref.21.20111.20.03400.0201
Present21.17111.10.03400.0204