Yuan Kang

TL;DR: In this article, the steady state responses of subharmonic, superharmonic and synchronous vibrations of a flexible rotor supported by bearings of power nonlinearity (i.e., the bearing force satisfies a power law of the deflection) are studied.

TL;DR: In this article, a modified unified balancing method for unsymmetrical rotor bearing systems is proposed, where two trial masses in different directions are required in the two trial operations for each balancing plane, and the modal influence coefficients are correlated with forward precession and unbalanced forces when asymmetry of bearings is considered.

TL;DR: In this article, the restriction effects of capillary and orifice on the stability of the rigid rotor-hybrid bearing system were investigated and the Routh-Hurwitz method was used to determine the stability threshold.

TL;DR: In this paper, the authors studied the tribological properties of liquid paraffin with SiO2 nanoparticles as an additive, which are made by surface-modification method, and the mechanism of the reduction of wear and friction was investigated by scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and atomic force microscope (AFM).

TL;DR: In this paper, the authors derived the transfer matrix of shaft segments by considering the state variables of shaft in a continuous system sense to give the most general formulation, where shaft unbalance, axial force, and axial torque are all taken into consideration so that the completeness of transfer matrix method for steady-state analysis of linear rotor-bearing systems is reached.