Are you a student eager to apply your theoretical knowledge and fresh perspectives to real-world challenges? At Saab, we believe that innovation thrives on new ideas, and your master thesis project could be the spark that ignites our next technological breakthrough.
We recognize the immense value that students bring to our company. Your academic rigor, combined with your enthusiasm for cutting-edge technology, allows you to approach problems with a unique and insightful lens. At Saab, you’ll have the opportunity to collaborate with experienced engineers and specialists, gaining invaluable practical experience while making a tangible contribution to our growth and development.
Simulation of projectile firing involves several strongly coupled physical phenomena, including propellant gas generation, projectile acceleration, interaction between projectile and barrel, counter mass or gas flow, and recoil behavior. Capturing these effects in a single finite element model is challenging and requires careful selection of modelling principles.
In Ansys LS-DYNA, Structured Arbitrary Lagrangian-Eulerian, S-ALE, methods offer possibilities to model fluid-structure interaction and highly dynamic gas-driven events. For Saab Dynamics, it is of interest to investigate how S-ALE can be used to represent the complete firing event of a projectile in a recoilless rifle weapon system on a concept level.
The purpose of this thesis is not necessarily to validate simulation results against real-life experiments, but rather to investigate suitable modelling strategies and identify practical recommendations for how such simulations can be built and evaluated.
Description of the master thesis
The aim of this thesis is to set up a concept-level finite element model of a complete projectile firing event in Ansys LS-DYNA, using S-ALE methodology where appropriate.