Current aircraft noise models for multi-events do not include effects of urban environment (shielding and reflection). But shielding by an elongated object is included in at least of one the models.
In collaboration with NLR, possibly at NLR facilities, you will investigate how well shielding for a non-elongated building can be modelled. For validation, results can be compared to a ray-tracing implementation or available commercial software extend for diverse source point on a trajectory.
Tasks to be foreseen and project goals:
- Assessment of aircraft noise models and tooling capable of accounting for urban environment. Primary focus is on shielding, but reflections, for instance using gpu accelerated hardware may be an interesting approach as well.
- Implementing a feasible option (e.g. the effect of shielding for building) based on available models.
- Comparison of model predictions with standard ray-tracing (commercial) urban acoustic models.
- Outlook on further validation with audio recordings or implementation in NLR real-time noise simulator.
- Documentation of the results.
This internship starts preferably as soon as possible. The start date can be negotiated as well as fulltime or part time employment. The duration of this assignment will be 5 to 6 months (shorter or longer is possible). We offer an inspiring high-tech aerospace-oriented working environment and an informal culture with room for personal initiative although you have to work remotely (because of COVID-19). You will receive a compensation for general expenditures.
During your internship you live in the Netherlands. It is not possible to do your internship from abroad. We do not support the intern in finding a place to stay during the internship.
- Higher professional education (HBO or WO) student
- Good knowledge in acoustics, signal analysis and flight operations
- Good programming skills (Matlab, Python, etc)
- High level of motivation
- Good communication and writing skills
- Team player
For more information, please contact Dr Barbara Ohlenforst, (Barbara.email@example.com; +31 88 511 31 44).
What we offer
- A challenging graduation project in a high-tech result orientated work environment
- Weekly supervision and availability of the technical staff for support
- An internship allowance
The royal NLR is a leading international research centre for aerospace. Its mission is to make air transport safer, more efficient, more effective and more sustainable. Bolstered by its multidisciplinary expertise and unrivalled research facilities, NLR provides innovative and comprehensive solutions to the complex challenges of the aerospace sector. NLR’s operator performance group has a wide range of both academic and practical knowledge on operator performance and human factors (HF) in complex environments. Operator-in-the-loop studies are performed to measure the manner in which personnel conduct themselves in an operational setting (either simulated or realistic). The assessment includes operator performance aspects such as (crew) workload, (team) situation awareness, usability, visual perception, vigilance, and (eye) fatigue. Data is gathered objectively (e.g. heart rate and eye-tracking) and subjectively (e.g. through interviews, workshops and questionnaires).
Bezoek ook ons NLRmedia kanaal op YouTube voor een goed beeld van de organisatie.
Send your application, together with your motivation letter and CV to Barbara.firstname.lastname@example.org, attn. Dr Barbara Ohlenforst. A first selection of candidates will be made ASAP. However more internships related to, and in continuation of, the current one are foreseen. Therefore late responses are also appreciated.
Locatie : Amsterdam
Uren : 40
Opleidingsniveau : HBO-WO
Werkniveau : Stage
Achtergrond : HBO-WO