Master Thesis, 30hp: S-ALE Simulation of Projectile Firing in Ansys LS-DYNA
Bygg, teknik och hantverk · Bygg- och industriteknik · Maskinteknik · Processteknik
I korthet
This Master Thesis project at Saab Dynamics involves setting up a concept-level finite element model of projectile firing in Ansys LS-DYNA using S-ALE methodology. The work focuses on investigating suitable modelling strategies and providing practical recommendations for representing complex physical phenomena in weapon systems.
Ansvarsområden
- Set up a concept-level finite element model of a complete projectile firing event in Ansys LS-DYNA.
- Utilize S-ALE methodology where appropriate for fluid-structure interaction and gas-driven events.
- Capture main physical phenomena including propellant burning, projectile propulsion, counter mass/gas flow, projectile-barrel interaction, and recoil.
- Study relevant modelling approaches and evaluate suitability for different parts of the firing event.
- Conduct a literature review on S-ALE methods and firing-event simulation approaches.
- Investigate Ansys LS-DYNA capabilities for coupled structural and gas-dynamic simulations.
- Develop a concept-level simulation model.
- Evaluate modelling strategies for propellant behavior, projectile motion, counter mass/gas flow, rifling interaction, and recoil response.
- Perform pre-processing and model preparation using Ansys Discovery and Ansys Mechanical.
- Post-process results in LS-PrePost and script using Python or MATLAB.
- Compare modelling approaches based on physical representativeness, numerical robustness, computational cost, complexity, and suitability for concept studies.
- Produce a structured assessment of suitable modelling principles and recommendations for Saab Dynamics.
Krav
- Student studying Mechanical Engineering, Engineering Physics, Applied Mechanics, Computational Mechanics, or a similar program.
- Approaching the end of master’s studies.
- Plan to start thesis work during spring 2027.
- Interest in numerical methods, finite element analysis, and structural mechanics.
- Ability to pass a security vetting.
Önskade kvalifikationer
- Experience with finite element method is beneficial.
- Experience with CAD geometry handling is beneficial.
- Experience or interest in Ansys LS-DYNA or similar simulation tools.
- Experience or interest in Python or MATLAB scripting.
- Experience or interest in CAD modelling.
Förmåner
- Opportunity to apply theoretical knowledge and fresh perspectives to real-world challenges.
- Collaborate with experienced engineers and specialists.
- Gain invaluable practical experience.
- Make a tangible contribution to company growth and development.
- Potential to contribute to technological breakthroughs.
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