Multi-objective optimization of hydro-viscous flexible drive for dynamic characteristics using genetic algorithm
- 27 August 2021
- journal article
- research article
- Published by Emerald in Industrial Lubrication and Tribology
- Vol. 73 (7), 1003-1010
- https://doi.org/10.1108/ilt-12-2020-0472
Abstract
The purpose of this study is to investigate the flexible dynamic characteristics about hydro-viscous drive providing meaningful insights into the credible speed-regulating behavior during the soft-start. A comprehensive dynamic transmission model is proposed to investigate the effects of key parameters on the dynamic characteristics. To achieve a trade-off between the transmission efficiency and time proportion of hydrodynamic and mixed lubrication, a multi-objective optimization of friction pair system by genetic algorithm is presented to obtain the optimal combination of design parameters. Decreasing the engagement pressure or the ratio of inner and outer radius, increasing the lubricating oil viscosity or the outer radius will result in the increase of time proportion of hydrodynamic and mixed lubrication, as well as the transmission efficiency and its maximum value. After optimization, main dynamic parameters including the oil film thickness, angular velocity of the driven disk, viscous torque and total torque show remarkable flexible transmission characteristics. Both the dynamic transmission model and multi-objective optimization model are established to analyze the effects of main design parameters on the dynamic characteristics of hydro-viscous flexible drive.Keywords
This publication has 14 references indexed in Scilit:
- Modeling and analysis of wet friction clutch engagement dynamicsMechanical Systems and Signal Processing, 2015
- Dynamic Transmission Characteristics during Soft-Start of Hydro-Viscous Drive Considering Fluid-Inertia ItemTribology Online, 2015
- Parametric analysis for a paper-based wet clutch with groove considerationTribology International, 2014
- Three-Dimensional Thermohydrodynamic Analysis of a Wet Clutch With Consideration of Grooved Friction SurfacesJournal of Tribology, 2010
- Variation in Fractal Properties and Non-Gaussian Distributions of Microcontact Between Elastic-Plastic Rough Surfaces With Mean Surface SeparationJournal of Applied Mechanics, 2005
- Analytical and Numerical Modeling of Engagement of Rough, Permeable, Grooved Wet ClutchesJournal of Tribology, 1997
- A Fractal Theory of the Interfacial Temperature Distribution in the Slow Sliding Regime: Part I—Elastic Contact and Heat Transfer AnalysisJournal of Tribology, 1994
- Fractal Model of Elastic-Plastic Contact Between Rough SurfacesJournal of Tribology, 1991
- Fractal character of fracture surfaces of metalsNature, 1984
- An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic LubricationJournal of Lubrication Technology, 1978