SIMULATION FOR INSTABLE FLOATING OF HYDRODYNAMIC GUIDES DURING ACCELERATION AND AT CONSTANT VELOCITY
Journal Title: Journal of Machine Engineering - Year 2018, Vol 18, Issue 3
Abstract
High speeds and the resulting hydrodynamic pressure lead to significant floating of the linear guides. During this movement, the floating behaviour shows phenomena that can be explained by the Reynolds equation. This paper presents a dynamic model of the floating behaviour, which adds tribological approaches to the common Reynolds equation since the floating behaviour does not only depend on the speed, but also on numerous other conditions. This developed simulation method is based on the use of finite difference elements and was implemented using Simulink and Matlab, allowing flexible implementation of further influences such as lubrication cycles and geometry of the sliding surface. After adapting the simulation model and determining the parameters, the calculated floating behaviour corresponds well with the experimental results.<br/><br/>
Authors and Affiliations
Yingying ZHANG, Volker WITTSTOCK, Matthias PUTZ
Keywords
Related Articles
- EP ID EP376418
- DOI 10.5604/01.3001.0012.4602
- Views 63
- Downloads 0
MODELLING OF A GLASS GATHERER ROBOT ARM WITH A FRICTIONAL DAMPER
A numerical model of a friction damper used for damping vibration in glass gatherer robots was described. The damper with a lance was modelled using finite elements. Primary natural frequency of the system was determine...
IN-PROCESS CONTROL WITH A SENSORY TOOL HOLDER TO AVOID CHATTER
Hydro-, steam- and gas- turbines, aircraft components or moulds are milled parts with complex geometries and high requirements for surface quality. The production of such industry components often necessitates the use of...
NUMERICAL FLOW SIMULATION OF ROTATING CIRCULAR SAW BLADES FOR THE INVESTIGATION OF SOUND GENERATION MECHANISMS
Emission of airborne sound in the production industry is endangering the employees’ health and is lowering productivity. Circular saw blades in particular cause high sound pressure levels. Therefore, the tool geometry o...
APPLICATION OF COMPLEX GAME-TREE STRUCTURES FOR THE HSU GRAPH IN THE ANALYSIS OF AUTOMATIC TRANSMISSION GEARBOXES
In the article was discussed the possibility of structures and information systems complex game trees for the analysis of automatic gearboxes. The purpose of modelling an automatic gearbox with graphs can be versatile,...
INVESTIGATION OF A HIGH-FORCED COOLING SYSTEM FOR THE ELEMENTS OF HEAT POWER INSTALLATIONS
The studies of the ultimate thermal flows have been carried out in metallic and poorly heat-conducting porous structures, which operate when gravitational and capillary forces act jointly and cool various devices of ther...