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Faculty of Engineering
Department of Marine Technology
PhD position within Marine Hydrodynamics (IV-136/17)
We have an open PhD position related to design and hydroelastic analysis of propellers and azimuth thrusters.
Ship propellers are traditionally made of metal and are rather stiff, such that their elastic deformation is usually negligible. In this project, we aim at developing flexible propellers, which adapt their shape to different load cases and flow fields through elastic deformation imposed by the hydrodynamic loads. On the other hand, it has been found that the housing of azimuth thrusters can undergo elastic deformation that is problematic for the durability of the thrusters, so there is a clear need to take the flexibility into account in a constructive manner at the design stage. To optimize the design of flexible propellers and azimuth thrusters, it is necessary to accurately predict the hydrodynamic loads, the elastic deformations, and the interaction between these two fields, referred to as Fluid-Structure-Interaction (FSI), through numerical analysis.
The goal of this PhD project is to develop efficient numerical methods to perform FSI analysis and shape optimization of flexible propellers and azimuth thrusters. The implementations will be based on isogeometric analysis (IGA), a novel form of finite element analysis with splines as basis functions. The primary focus of the work will be to develop and implement isogeometric boundary element methods (panel methods) for the hydrodynamics and to couple them to existing codes for isogeometric structural analysis. In this way, both the structural and the hydrodynamic analysis will be performed directly on the CAD model of the structure, leading to a significantly more efficient workflow for design, analysis, and shape optimization. The research work also includes experimental work on propellers and thrusters in model scale, which will be performed in the laboratories of SINTEF Ocean.
The PhD project is part of the KPN research project Fleksprop, financed by the Norwegian Research Council and Rolls-Royce Marine AS. The project is managed by SINTEF Ocean, and NTNU Department of Marine Technology and Rolls-Royce Marine are participating in the project. The PhD work will take advantage of collaboration with researchers at NTNU, SINTEF Ocean and Rolls-Royce Marine AS.
The position requires a Master’s degree in marine technology, mechanical or civil engineering, industrial mathematics, or a similar relevant area, with an average grade of B or better according to either NTNU’s or the ECTS grading system. Candidates from universities outside Norway are kindly requested to send a Diploma Supplement or a similar document, which describes in detail the study and grade system and the rights for further studies associated with the obtained degree: http://ec.europa.eu/education/tools/diploma-supplement_en.htm
Candidates should have good knowledge in hydrodynamics and structural mechanics as well as in numerical methods like boundary element methods (BEM) and/or finite element methods (FEM). Candidates should further have good programming skills and be interested in participating in physical testing in the laboratories. Good English skills are also required. The successful candidate must be enthusiastic and highly motivated and be willing to work both independently and with other researchers.
PhD Candidates are remunerated in code 1017, and are normally remunerated at gross NOK 432,300 before tax. There will be a 2 % deduction to the Norwegian Public Service Pension Fund from gross wage.
Engagement as a PhD Candidate is done in accordance with “Regulation concerning terms and conditions of employment for the posts of post-doctoral research fellow, research fellow, research assistant and resident”, given by the Ministry of Education and Research of 19.07.2010. The goal of the positions is to obtain a PhD degree. Applicants will engage in an organized PhD training program, and appointment requires approval of the applicants plan for a PhD study within three months from the date of commencement.
The position is of 3 years duration.
For further information about the position, please contact Prof. Sverre Steen email firstname.lastname@example.org or Assoc. prof. Josef Kiendl email: email@example.com , Department of Marine Technology, NTNU, Trondheim.
See http://www.ntnu.edu/ivt/phd for more information.
The engagement is to be made in accordance with the regulations in force concerning State Employees and Civil Servants. The positions adhere to the Norwegian Government's policy of balanced ethnicity, age and gender. Women are encouraged to apply.
The application must contain information of educational background and work experience. Certified copies of transcripts and reference letters should be enclosed. Applications with CV, grade transcripts and other enclosures should be submitted via this webpage at www.jobbnorge.no. Mark the application with IV-136/17.
Start-up date may be discussed, but tentatively late August 2017.
Application deadline is 01 June 2017
According to the new Freedom of Information Act, information concerning the applicant may be made public even if the applicant has requested not to be included in the list of applicants.
- Søknadsfrist1. juni 2017
- ArbeidsgiverNTNU - Norwegian University of Science and Technology
- ArbeidsstedDepartment of Marine Technology
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