Scania

30 credits - FEM simulation of EEE components

Rekryterare
Scania
Plats
Sodertalje, Stockholm
Annonserat
den 8 oktober 2019
Stängs
den 30 november 2019
Ref:
20193954
Kategori
Övriga jobb
Anställningsform
Tillsvidare
Sysselsättning
Heltid
Background:
The complexity of electrical systems on commercial vehicles are continuously increasing, and as a consequence the amount of EEE-components (Electronic, Electric and Electro-mechanical) increases. At the same time the demands on life length and reliability are raised to higher and higher levels.

Traditional testing of EEE-components involves physical tests on component level with well-established and standardized test methods, as example vibration and temperature changes. Some of the test involves a long test time and this can be a problem regarding development time.

For mechanical parts on the other hand, the simulations are more widely used and often done early in the development process. The results gives input if physical testing is needed and/or if any dedicated test needs to be done in order to verify the calculation/simulation results.

Scania has done a few calculations/simulations on EEE-components from a vibration/temperature damage point of view with good results. The challenge is that the EEE-components usually are designed of a lot of different materials and often with a complex structure.

Target:
Build a model and run a FEM simulation on a selected part of a PCB (Printed Circuit Board) with some soldered components and compare the results with results from already performed physical tests. Investigate difference between simulation and actual test results, identify critical parameters and see if the simulation can be transferred to a larger part of the PCB with other types of electronic components.

Assignment:
Based on the already made physical tests and simulations on a specific component:
  • Build a model and run a FEM simulation on a limited part of the PCB with limited number of components (surface mounted resistors that failed in the physical tests).
  • Compare simulation with actual test results, both for the first design and the updated one that included component changes.
  • Evaluate the result with other types of loads applied to the PCB, temperature changes, vibration and so on.
  • Evaluate if the results can be transferred to other types of PCB mounted electronic components.

Candidate profile:
  • Close to MSc Engineering degree in Mechanic, Material or Engineering physics.
  • Committed, self-starting, taking responsibility, high focus and interest to create new technique.
  • Solution and result driven approach.

Number of students: 1.
Start date: 2020
Estimated time needed: 20 weeks

Contact persons and supervisors:
Dan Magnusson, supervisor, 08-553 80538, dan.magnusson@scania.com
Jon Lindholm, group manager, 08- 553 89136, jon.lindholm@scania.com

Scania is a world-leading provider of transport solutions. Together with our partners and customers we are driving the shift towards a sustainable transport system. In 2018, we delivered 88,000 trucks, 8,500 buses as well as 12,800 industrial and marine engines to our customers. Net sales totalled to over SEK 137 billion, of which about 20 percent were services-related. Founded in 1891, Scania now operates in more than 100 countries and employs some 52,000 people. Research and development are concentrated in Sweden, with branches in Brazil and India. Production takes place in Europe, Latin America and Asia, with regional production centres in Africa, Asia and Eurasia. Scania is part of TRATON SE. For more information visit: www.scania.com.

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