TY - JOUR
T1 - Effect of possible rotor deformation on the probability of face contact for a liquid film bearing
AU - Bailey, N. Y.
AU - Hibberd, S.
AU - Power, H.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - The possibility of face contact is examined for a coaxial rotor-stator bearing in dynamic motion constrained by a highly rotating very thin liquid film. A modified Reynolds equation for pressurised flow is coupled to the bearing structure leading to determination of the bearing gap from solving a nonlinear second-order non-autonomous ordinary differential equation. Periodic solutions are found via a mapping solver. Rotor deformation is parametrised by a coning angle and considered a random variable. The method of derived distributions is used to quantify variation in coning angle and examine the probability of rotor-stator contact. Additionally, effects of possible destabilising random aspects on the axial rotor oscillations are investigated. Exact solutions for probability of contact are obtained for various bearing configurations.
AB - The possibility of face contact is examined for a coaxial rotor-stator bearing in dynamic motion constrained by a highly rotating very thin liquid film. A modified Reynolds equation for pressurised flow is coupled to the bearing structure leading to determination of the bearing gap from solving a nonlinear second-order non-autonomous ordinary differential equation. Periodic solutions are found via a mapping solver. Rotor deformation is parametrised by a coning angle and considered a random variable. The method of derived distributions is used to quantify variation in coning angle and examine the probability of rotor-stator contact. Additionally, effects of possible destabilising random aspects on the axial rotor oscillations are investigated. Exact solutions for probability of contact are obtained for various bearing configurations.
KW - Face contact
KW - Method of derived distribution
KW - Probability density function
KW - Reynolds equation
UR - http://www.scopus.com/inward/record.url?scp=85008970231&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1016/j.triboint.2016.12.032
U2 - 10.1016/j.triboint.2016.12.032
DO - 10.1016/j.triboint.2016.12.032
M3 - Article
AN - SCOPUS:85008970231
SN - 0301-679X
VL - 109
SP - 297
EP - 310
JO - Tribology International
JF - Tribology International
ER -