Thesis Worker- Controlled Multi-Body Dynamic Simulation for Structural Characterization

Thesis Worker at Volvo Cars
Welcome to explore the world of Volvo Cars by writing your thesis with us! As a thesis worker in our organization you are supported by a supervisor who follows you during your project. All thesis projects are arranged in business critical areas and therefore you will be able to contribute to our company purpose – providing freedom to move in a safe, sustainable and personal way – from day one!
 

About this opportunity - Background

The driveline's main purpose in a Battery Electric Vehicle is to deliver the required driving power to the wheels without experiencing critical failures. Additionally, to be competitive in the global market, the driveline must ensure high overall efficiency and drivability while minimizing noise and vibration. Designing such a complex system requires detailed knowledge of its structural parts and their mechanical connections, how they move and vibrate together during operation, and how they interact with distributed sensors, actuators, and control laws.
 

Virtual simulation is a core tool in the development of individual hardware and software subsystems. However, it is rarely used to find robust control parameter values with respect to system dynamic interactions. Active control functionalities are seldom included in simulations for mechanical system design analysis, and vice versa. To further develop high-performing, efficient electric driveline applications, it is crucial to consider the coupled control and structural system dynamics. Neglecting 3D elasticity, damping, and joint kinematics can lead to inaccurate control and unstable operation.
 

Scope of the thesis work

Current efforts in driveline design analysis aim to introduce active signal processing and actuator controls into system dynamic simulations. This thesis project will explore principles for incorporating a feedback controller into a multi-body dynamic system model. The specific example to be studied involves a rotating system, such as an electric machine connected to a transmission, with a torque and speed control system applied to the motor.
 

The primary focus will be on the development of simulation and analysis techniques for substructure dynamical characterization. Depending on progress and available time, the project may also explore how to utilize active controls to identify and track system resonance conditions during simulated rig-tests.
 

The expected outcome is the development and practical evaluation of alternative implementations of specified control functionalities into a multi-body dynamic model, to efficiently simulate and process responses to produce valuable results that are accurate enough for its purpose.
 

What you´ll bring

We are seeking highly motivated students enrolled in a master’s program in Applied Mechanics, Systems Control, Mechatronics, or a related field. The ideal candidate is both analytical and practical, with an interest in numerical simulation and mathematical analysis of nonlinear dynamical systems. Experience, whether theoretical or practical, in multi-body dynamics, and structural dynamics is a bonus. You are expected to be working on-site.
 

Duration

• The work will start in January 2025
• The duration for this thesis work is 20 weeks
• 30 ECTS (academic credits) if in agreement with your Thesis Advisor in university
• This thesis is to be conducted by 1-2 students

Be part of the change – apply today!

We would love to receive and review your application. Selection will be ongoing during the application period, so do not hesitate to send in your application. Attach your CV and personal letter stating your interests within the given area and your thoughts and credentials.

Apply as soon as possible but no later than 2024-10-31. Please note that applications via email will not be accepted.
 

If you want more information about the project or simply learn a bit more about the team, please contact:

• Manager, Henrik Nyberg at henrik.nyberg@volvocars.com
• Supervisor, Niclas Andersson at niclas.s.andersson@volvocars.com
• Co-supervisor, Ingemar Andersson at ingemar.andersson.2@volvocars.com

If you are applying as a pair If yes, let us know your colleague name.

Volvo Cars - Driving change together

Volvo Cars’ success is the result of a collaborative, diverse, and inclusive working environment. Today, we are one of the most well-known and respected car brands, with around 43,000 employees across the globe. At Volvo Cars, your career is designed around your skills and aspirations, allowing you to reach your fullest potential.