A review of machine-tool vibration and its influence upon surface generation in ultra-precision machining

SJ Zhang, S To, GQ Zhang, ZW Zhu - International journal of machine tools …, 2015 - Elsevier
Vibration in ultra-precision machining (UPM) is an intrinsic physical phenomenon, which is a
key factor influencing surface generation. With a focus on passive vibration, this paper …

Whirl and whip instabilities in rotor-bearing system considering a nonlinear force model

HF De Castro, KL Cavalca, R Nordmann - Journal of sound and vibration, 2008 - Elsevier
Linear models and synchronous response are generally adequate to describe and analyze
rotors supported by hydrodynamic bearings. Hence, stiffness and dam** coefficients can …

Dynamic behaviours of a full floating ring bearing supported turbocharger rotor with engine excitation

L Tian, WJ Wang, ZJ Peng - Journal of Sound and Vibration, 2011 - Elsevier
The rotor dynamic behaviour of turbochargers (TC) has been paid significant attention
because of its importance in their healthy operation. Commonly, the TC is firmly mounted on …

Dynamic characteristics of an aerostatic bearing spindle and its influence on surface topography in ultra-precision diamond turning

SJ Zhang, S To, CF Cheung, HT Wang - International Journal of Machine …, 2012 - Elsevier
In ultra-precision diamond turning (UPDT), aerostatic bearing spindle vibration plays the
major part in many factors that influence surface topographies. In this paper, a five-degree-of …

Effects of eccentric phase difference between two discs on oil-film instability in a rotor–bearing system

H Ma, H Li, X Zhao, H Niu, B Wen - Mechanical systems and signal …, 2013 - Elsevier
The operating speed of the rotating machinery often exceeds the second order or even
higher order critical speeds to pursue higher efficiency. Thus, the second mode whirl/whip …

A model establishment and numerical simulation of dynamic coupled hydraulic–mechanical–electric–structural system for hydropower station

Q Wu, L Zhang, Z Ma - Nonlinear Dynamics, 2017 - Springer
A nonlinear dynamic coupled model for hydropower station system, which contains the
model of water-carriage system, water turbine system, speed governor system, generator's …

Bifurcation analysis of self-acting gas journal bearings

CC Wang, CK Chen - J. Trib., 2001 - asmedigitalcollection.asme.org
This paper studies the bifurcation of a rigid rotor supported by a gas film bearing. A time-
dependent mathematical model for gas journal bearings is presented. The finite differences …

Nonlinear effects of unbalance in the rotor-floating ring bearing system of turbochargers

L Tian, WJ Wang, ZJ Peng - Mechanical Systems and Signal Processing, 2013 - Elsevier
Turbocharger (TC) rotor-floating ring bearing (FRB) system is characterised by high speed
as well as high non-linearity. Using the run-up and run-down simulation method, this paper …

Vibration attenuation of a rotor supported by journal bearings with nonlinear suspensions under mass eccentricity force using nonlinear energy sink

S Bab, SE Khadem, M Shahgholi - Meccanica, 2015 - Springer
This paper studies the effect of a number of smooth nonlinear energy sinks (NESs) on the
vibration mitigation of a rotor supported by journal bearings with nonlinear suspensions …

Nonlinear coupled dynamics of flexible blade–rotor–bearing systems

L Wang, DQ Cao, W Huang - Tribology International, 2010 - Elsevier
The nonlinear dynamic behavior of a rotor–bearing system with interaction between blades
and rotor is addressed in this paper. Using the Lagrange equation, a time-dependent …