Thesis Work: Prediction of Distortion due to Welding in Traction Converters

Bygg, teknik och hantverk · Bygg- och industriteknik · Maskinteknik

I korthet

This thesis project focuses on developing a computational method to predict welding-induced distortions in Alstom's traction converters. The work involves welding simulation, structural analysis, and validation, aiming to create a design tool for early prediction of weld distortion. The project is based in Vasteras, Sweden.

Ansvarsområden

Develop a finite element (FE) calculation method for predicting welding-induced distortion.
Integrate welding simulation with structural analysis.
Validate the computational approach through experimental measurements.
Create a design tool for engineers to predict weld distortion.
Conduct thermomechanical simulation to determine residual stresses.
Perform small deformation analysis and eigenvalue analysis for buckling load and distorted shape.
Carry out incremental large deformation analysis.
Potentially use the blinding hole drilling method to measure residual stress distribution.

Krav

Background in Mechanical engineering.
Understanding of structural design.
Understanding of weld joint analysis.
Familiarity with FEA tools.
Good analytical skills.
Systems thinking mindset.
Master's degree project (20 weeks).

Önskade kvalifikationer

Understanding of structural requirements of railway vehicle bodies, e.g. EN 12663-1.
Knowledge of weld modeling methods recommended by literature and across different industries.
Ability to scale weld load from weld simulation to structural analysis.
Ability to accurately determine both critical buckling load and distortion magnitude.
Thesis can be written in Swedish and/or English.

Förmåner

Possibility to work from our office.

Färdigheter

Finite Element AnalysisWeldingStructural AnalysisBuckling AnalysisResidual Stress AnalysisFEA

#thesis#engineering#welding#FEA#structural analysis#mechanical engineering#traction converters

Om Alstom

Rail has the power to shape how societies grow, connect, and decarbonise. At Alstom, we turn this potential into reality, moving over 100 million people daily with safe, smart, and sustainable mobility solutions.

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