Bachelor / Master Thesis: Modelling and Simulation of the EHL Contact of Laser-Polished Surfaces in Python
Website Institute of Machine Elements and System Engineering
The Institute for Machine Elements and Systems Engineering researches the fundamental structural and tribological behavior of machine elements and represents this in experimentally validated model descriptions. These model descriptions are used to analyze and design the functional, loss, and noise behavior of entire technical systems with a focus on drive technology. The developed models also serve to research and develop methods of Model-Based Systems Engineering as a central element of future industrial product development processes.
Drive systems are optimized for efficiency. Surface roughness is a major factor in this regard, which is why the functional surfaces of machine components are treated using superfinishing. To reduce toxic components in the manufacturing process, the alternative, more energyefficient method of laser beam melting is being considered. However, the effects of the new surfaces on the performance of machine components are unknown.
Smooth surfaces rub less and save energy. In laser polishing, the beam briefly melts the roughness peaks and rounds them off, no material removed. How much friction this saves in a lubricated contact is an open question. To answer it, you develop our Python simulation model further and use it to compare ground and laser-polished surfaces. You validate the results against tribometer measurements.
Tasks:
- Numerical simulation of the lubricated contact on measured 3D surface topographies (Reynolds equation, half-space)
- Extending the contact model to include plasticity and running-in of the roughness peaks
- Comparing ground and laser-polished surfaces within the simulation model
- Comparing ground and laser-polished surfaces within the simulation model
Prerequisites:
- Independent and reliable working style
- Python skills
- Interest in drive technology and interdisciplinary issues
We offer:
- Flexible design of work focus areas
- Intensive supervision
- Prompt processing possibility and pleasant working environment
- Immediate start or by arrangement
We look forward to your application by email:
Benjamin Klinghart, M.Sc.
Institute for Machine Elements and Systems Engineering
Schinkelstraße 10, 52062 Aachen
Benjamin.Klinghart@imse.rwth-aachen.de
Um sich für diesen Job zu bewerben, sende deine Unterlagen per E-Mail an Benjamin.Klinghart@imse.rwth-aachen.de
