Research Article
Nonlinear Dynamics of an Electrorheological Sandwich Beam with Rotary Oscillation
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 velocity | Natural frequency | Modal damping ratio | (r.p.m) | (Hz) | (Hz) | | |
| 0 |
Ref. | 20.15 | 104.0 | 0.0382 | 0.0235 |
Present | 20.14 | 103.9 | 0.0384 | 0.0233 | 600 |
Ref. | 20.58 | 106.8 | 0.0365 | 0.0220 |
Present | 20.53 | 106.6 | 0.0366 | 0.0222 | 1000 |
Ref. | 21.20 | 111.2 | 0.0340 | 0.0201 |
Present | 21.17 | 111.1 | 0.0340 | 0.0204 |
|
|