TY - GEN
T1 - Effect analysis of dimensional tolerances on the dynamic characteristics of hydrodynamic journal bearing system
AU - Wei, Yuan
AU - Chen, Zhaobo
AU - Xu, Wubin
AU - Jiao, Yinghou
PY - 2013
Y1 - 2013
N2 - According to the exist of dimensional tolerances on hydrodynamic journal bearing system, a nonlinear oil film force model was developed, emphasis on the different dimensional tolerances in the system, the tolerances of dynamic viscosity, bearing width, bearing diameter and journal diameter along with its interaction effect to the dynamics characteristics of the hydrodynamic journal bearing system were analyzed. By using the eccentricity corresponding to the stability threshold velocity, the effects of the stiffness and damping coefficients, carrying capacity, system stability and friction power loss brought by the dimensional tolerances of the dynamic viscosity, bearing width, bearing diameter and journal diameter was quantitative analyzed. The results show that in contrast to the impacts of the tolerances in bearing diameter, dynamic viscosity and bearing width, the journal diameter tolerance would lead to a negative effect, and the dimensional tolerances have different degrees of impacts on the journal bearing system. The energy decreased as the eccentricity increased, when the eccentricity is 0.6948 the friction energy reach to a minimum. It provides a theoretical basis to select reasonable parameter, find the best solution and control varieties of nonlinear dynamical behavior.
AB - According to the exist of dimensional tolerances on hydrodynamic journal bearing system, a nonlinear oil film force model was developed, emphasis on the different dimensional tolerances in the system, the tolerances of dynamic viscosity, bearing width, bearing diameter and journal diameter along with its interaction effect to the dynamics characteristics of the hydrodynamic journal bearing system were analyzed. By using the eccentricity corresponding to the stability threshold velocity, the effects of the stiffness and damping coefficients, carrying capacity, system stability and friction power loss brought by the dimensional tolerances of the dynamic viscosity, bearing width, bearing diameter and journal diameter was quantitative analyzed. The results show that in contrast to the impacts of the tolerances in bearing diameter, dynamic viscosity and bearing width, the journal diameter tolerance would lead to a negative effect, and the dimensional tolerances have different degrees of impacts on the journal bearing system. The energy decreased as the eccentricity increased, when the eccentricity is 0.6948 the friction energy reach to a minimum. It provides a theoretical basis to select reasonable parameter, find the best solution and control varieties of nonlinear dynamical behavior.
UR - https://www.scopus.com/pages/publications/84903433090
U2 - 10.1115/IMECE2013-62535
DO - 10.1115/IMECE2013-62535
M3 - 会议稿件
AN - SCOPUS:84903433090
SN - 9780791856253
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
BT - Dynamics, Vibration and Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013
Y2 - 15 November 2013 through 21 November 2013
ER -