CEVT is an innovation and development company at the forefront of mobility. Modular development, ground-breaking virtual engineering, software development and continuous innovation enable us to deliver world-class technology. Today we deliver to different automotive brands in the Geely family such as Geely Auto, Volvo Cars, and Lynk & Co and are based at Lindholmen in Gothenburg.
Master Thesis Project
Title: Modeling the acoustic of the vehicle compartment at high frequency
Audio and NVH engineers are aiming to control the sound field inside the vehicle compartment, where the requirements are not only limited to having a quiet vehicle but also to having comfort, clear communication between the passengers and high audio quality.
These requirements need to be achieved at the early design phase of the vehicle using simulation tools. Calculations are mostly performed within the frequency domain by solving the Helmholtz equation mainly using FEA. However, the FEM calculation becomes very expensive at a higher frequency making it only feasible for low/mid frequencies.
This master thesis is about working on and simulating mid/high frequency using Ray acoustics. The ray-tracing capabilities compared to other high-frequency simulation methods (i.e., Acoustic Diffusion) can provide a detailed picture of a high frequency including the direct sound and early reflections. The model will also be used to study the effect of trim and absorption materials in the vehicle.
- Perform a literature study
- Study the interior acoustics simulation
- Become familiarized with CEVT simulation tools
- Evaluation and optimization of interior noise
- Interest in vehicle NVH
- Interest in NVH simulation methods
- Strong background acoustics
- Strong background in analytical mathematics and linear algebra
- Basic knowledge in MATLAB or Python
Number of students: 1 or 2, please apply with CV and cover letter.
Starting date: January 2022. The duration of the thesis work is 20 weeks
For more information please contact:
Amr Abboud, NVH Attribuet Leader +46 721999865, firstname.lastname@example.org
Last application date: 2021-10-29
Apply today. We will perform ongoing selection during the application period. We look forward to hearing from you!
Please note that due to GDPR regulations we can only accept applications sent through the recruitment system, not via email or other channels.