Use of computational fluid dynamics in hydrodynamic lubrication

PYP Chen, EJ Hahn - Proceedings of the Institution of …, 1998 - journals.sagepub.com
This paper demonstrates the suitability of using computational fluid dynamics software for
solving steady state hydrodynamic lubrication problems pertaining to slider bearings, step …

Multiple-objective design optimization of squirrel cage for squeeze film damper by using cell map** method and experimental validation

W Zhang, B Han, X Li, J Sun, Q Ding - Mechanism and Machine Theory, 2019 - Elsevier
Squirrel cage is commonly used in aero-engine compressors serving as a centering spring.
The cage is supposed to be optimally designed in order to provide reliable service under …

Squeeze film dampers supporting high-speed rotors: rotordynamics

S Hamzehlouia, K Behdinan - Proceedings of the Institution …, 2021 - journals.sagepub.com
This work develops a finite element based multi-mass flexible rotor model for theoretical
investigation of the influence of the squeeze film damper lubricant inertia on the unbalance …

[HTML][HTML] The effect of lubricant inertia on fluid cavitation for high-speed squeeze film dampers

T Fan, S Hamzehlouia, K Behdinan - Journal of Vibroengineering, 2017 - extrica.com
This work studies the effect of lubricant inertia on the fluid cavitation for partially sealed high-
speed squeeze film dampers (SFDs) executing small amplitude circular-centered orbits …

Observations on the nonlinear fluid forces in short cylindrical squeeze film dampers

J Zhang, J Ellis, JB Roberts - 1993 - asmedigitalcollection.asme.org
Recent theoretical work by Tichy and Bou-Said (1991) and El-Shafei and Crandall (1991)
has resulted in new theoretical expressions for the nonlinear inertia forces for both short and …

A study of lubricant inertia effects for squeeze film dampers incorporated into high-speed turbomachinery

S Hamzehlouia, K Behdinan - Lubricants, 2017 - mdpi.com
This work proposes a numerical model that incorporates the effect of lubricant inertia on the
hydrodynamic pressure distribution, fluid film reaction forces, and the fluid velocity …

Vibration response analysis of rotor system coupled with a novel 4-DOF SFD hydrodynamic model considering the influence of rotational displacement

Y Xu, H Cao, J Shi, S Pei, H Li - Tribology International, 2024 - Elsevier
As a dam** structure, squeeze film dampers (SFDs) are commonly employed in
turbomachinery. Aiming at the problem of hydrodynamic modeling and solution, this paper …

Squeeze Film Dampers Executing Small Amplitude Circular‐Centered Orbits in High‐Speed Turbomachinery

S Hamzehlouia, K Behdinan - International Journal of …, 2016 - Wiley Online Library
This work represents a pressure distribution model for finite length squeeze film dampers
(SFDs) executing small amplitude circular‐centered orbits (CCOs) with application in high …

Squeeze film dampers supporting high-speed rotors: fluid inertia effects

S Hamzehlouia, K Behdinan - Proceedings of the Institution …, 2020 - journals.sagepub.com
This work represents closed-form analytical expressions for the operating parameters for
short-length open-ended squeeze film dampers, including the lubricant velocity profiles …

Multi-objective system optimization method and experimental validation of a centralized squeeze film damper using a cell map** method considering dynamic …

W Zhang, B Han, X Li, J Sun, Q Ding - Engineering Optimization, 2021 - Taylor & Francis
This article presents a multi-objective optimal design method for a squeeze film damper
(SFD) with centring spring. The proposed method is able to obtain the optimal design …