Dear sirs, find attached this post by Lorenzo Asín, Mechanical Engineer, about his Undergraduate Project related to develop a Simulation Software of the Lubrication Regimes. You can know more about this project in this web.
Nowadays it is important to have precise control of the lubrication regimes in order to reduce costs (either reparations or an excessive energy consumption due to the usage of more lubricant than necessary) and to improve the useful life of mechanic components.
Nowadays it is important to have precise control of the lubrication regimes in order to reduce costs (either reparations or an excessive energy consumption due to the usage of more lubricant than necessary) and to improve the useful life of mechanic components.
This software has been developed with the idea of
allowing the designers to obtain a clear and concise idea about the lubricants
behavior under the variation of the most important parameters that take part
during lubrication.
In this software, created trough the MATLABTM
programming language, the user can choose between a variety of different
mechanical elements to simulate the lubrication in. These elements can be
bearings (ball, cylindrical and spherical rollers), gears (parallel axis
helical, spur, bevel and planetary gears) and cam-follower systems (sliding and
roller systems). If the user knows it has also the option to introduce the
contact area manually.
A great database of mineral
and synthetic lubricants of different trademarks (Repsol, Shell, Cepsa, bp and
Exxon Mobil) has been added in order to facilitate the user the selection and
comparison of different products. The manual introduction of the lubricant
characteristics are also included, in case that the lubricant is not included in
the database.
Other data, as the surface of the mechanical element roughness, the mechanical elements materials or the speed and loads that these
mechanisms suffer will be necessary to do a correct simulation.
The software will execute a simulation obtaining the
lubricant film thickness for the given parameters. Comparing these thicknesses
with the surface roughness, the software will be able to determine the kind of
lubrication regime that it is taking place (boundary, mixed or elastohydrodynamic)
and to inform the user about it.
The user can also choose between various graphic representations to observe the lubricant film thickness change as a function of the variation of the three main parameters that take part in lubrication: the relative speed, load, and temperature. The user will be able to use 2D (graphs relating one of the parameters with the thickness) and 3D graphs (relating two of the parameters with the thickness).
For subsequent analysis of the results the user also
will be able to save the generated graphs as images and to export the
simulation data to an Excel file.
This is a user-friendly software that allows the
obtaining a great amount of data about lubrication and gives a potential
save money and time for the user.
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