Ph.D. student in Aeroacoustics/Nonlinear System Identification
KTH Royal Institute of Technology, School of Engineering Sciences
KTH Royal Institute of Technology in Stockholm has grown to become one of Europe’s leading technical and engineering universities, as well as a key centre of intellectual talent and innovation. We are Sweden’s largest technical research and learning institution and home to students, researchers and faculty from around the world. Our research and education covers a wide area including natural sciences and all branches of engineering, as well as in architecture, industrial management, urban planning, history and philosophy.
At the department of Aeronautical and Vehicle Engineering (www.ave.kths.se), research on different aspects of vehicle design is performed. One such aspect is sound and vibration in general and aero-acoustics in particular. At the department, the research within aero-acoustics has concentrated on internal flows, such as flows in exhaust and ventilation systems, respectively. This research is performed within the flow-acoustics group, consisting of five seniors and around ten Ph.D. students. A lot of the research is performed in close collaboration with Swedish or European vehicle industry. The project will be associated to the competence center for engine gas exchange CCGEx (http://www.kth.se/en/ccgex) within which there is close collaboration with the departments of Mechanics (fluid mechanics) and Internal Combustion Engines as well as the Swedish car and truck industry.
A Ph.D. position is available within the EU funded Marie Sklodowska Curie Initial Training Network SmartAnswer (Smart mitigation of flow-induced acoustic radiation and transmission for reduced aircraft, surface transport, workplaces and wind energy noise). SmartAnswer is focused on the development of innovative technologies for flow and acoustic control, in a view to providing better passenger comfort and reduce the environmental impact in air and surface transportation, for quieter domestic appliances and systems on our homes and working places, and more sustainable wind energy production. SmartAnswer is offering its young researchers an unprecedented training platform combining laboratory experiments, theoretical modelling, numerical simulations and optimization. They will be confronted with the constraints (manufacturing, economic, …) that apply in an innovation process through strong interactions with industrial stakeholders from the aeronautical, automotive, wind turbine and cooling/ventilation sectors.
The project at KTH will focus on the effect of high level acoustic excitation and combinations of grazing/bias flow (“complex loads”) on the impedance of perforates. Of special interests are small sized holes so called micro-perforates that can be very efficient for damping of sound. Expected Results are: methods to analyze non-linear impedance; new validated models for micro-perforate impedance under “complex loads”; input to design optimization for micro-perforates; new databases of acoustic properties of micro-perforates under complex loads.
The potential candidate must have a master’s degree in Mechanical Engineering, Vehicle Engineering, Engineering Physics or a corresponding degree. Basic knowledge in acoustics or fluid mechanics is required. Experience of experimental work is a merit. The candidate should be highly motivated for doing scientific research and should have well developed analytical and problem solving skills as well as an interest and curiosity for different aspects of engineering design and mechanical constructions. The applicant should have a good level in English, both written and spoken.
The SmartAnswer partners strictly adhere to the ethical standards of the European Charter for Researchers and Code of Conduct for the Recruitment of Researchers. Female scientists are particularly encouraged to apply. A strict equal opportunity, gender-neutral and internationally comparable recruitment procedure is implemented. Applicants must satisfy eligibility rules, in particular in terms of transnational mobility, including not having resided or carried out his/her main activity (work, studies, etc.) in Sweden for more than 12 months in the 3 last years.
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|Type of employment||Temporary position longer than 6 months|
|Contract type||Full time|
|First day of employment||2017-06-01|
|Salary||Monthly salary according to KTH's Ph.D. student salary agreement|
|Number of positions||1|
|Last application date||01.May.2017 11:59 PM CET|