Qingkai Han

TL;DR: In this paper, a general approach is presented for the vibration studies of rotating cylindrical shells having arbitrary edges, which is based on the Sanders' shell theory and the effects of centrifugal and Coriolis forces as well as initial hoop tension due to rotating are all taken into account by taking the characteristic orthogonal polynomial series as the admissible functions, the Rayleigh-Ritz method is employed to derive the frequency equations of rotating cylinders with classical homogeneous boundary conditions.

TL;DR: In this paper, the fault characteristics of a single span rotor system with two discs are investigated when the rubbing between a disc and an elastic rod (a fixed limiter) occurs, and the simulation results show that different rotor motions appear, such as period-one motion (P1), P2 and P3 with increasing rotating speeds, which are in agreement with the experimental measurements.

TL;DR: In this article, the nonlinear amplitude-dependent material property of fiber-reinforce composites (FRCs) and partial bolt loosening boundary conditions are taken into account, where the Rayleigh-Ritz method is employed to derive the equations of motion for FRCCSs from which the natural frequencies, damping ratios, and forced response can be obtained.

TL;DR: In this article, an analytical model for fiber reinforced polymer composite cylindrical shells (FRPCCSs) accounting for material and geometric nonlinearities and thermal effect is proposed, which is capable of predicting natural frequencies, damping ratios, and resonant responses under different excitation amplitudes and temperatures.