The department of Mechanics and Maritime Sciences (M2) was founded at Chalmers University of Technology on May 1, 2017. The department consists of seven different divisions within the areas of engineering and maritime sciences, and one division of administration and support. The department is characterized by an international environment with employees and students from around the world, as well as outstanding research and world class education. The department holds one of Sweden’s most extensive simulator centre for navigation and propulsion of ships, as well as world class laboratories within combustion engineering and wind tunnels. M2 conducts basic and applied research in areas such as increased security, energy efficiency and material optimization of sustainable technology solutions across all modes of transport. The department contributes to bachelor and master programs in engineering and the maritime education programs (Master Mariner, Marine Engineer, and Shipping and Logistics). In addition, further education is performed on both a national and international level, with specially designed mission training for different social actors, within our ambition for a lifelong learning. The department continuously strives to establish a cooperation between academia, industry, and society, with a great focus on utilization.

Information about the division
The Division of Marine Technology at M2 offers a creative interdisciplinary working environment, which together with the Division of Maritime Studies covers most perspectives of shipping related research and education. At the Division of Marine Technology we carry out fundamental and applied research for enabling the development and improvement of the area. We make propellers last longer and be quieter, we reduce the drag and improve the seakeeping properties of hulls, we design structures that perform better in collisions and require lower maintenance. All our activities are best presented through our core competences: Renewable energy, Energy efficiency, Structural integrity, Hydrodynamics, Ship design, Safety and reliability, Propulsion systems, Wave dynamics and Numerical methods.

We are now looking for a talented and motivated PhD-student with an interest in marine technology. The PhD-position will be connected to one of two possible projects:

Project 1: Prevention of erosion and fatigue damages of marine propellers
Ships are becoming larger and larger and the installed engine power is therefore also increased. This results in larger propeller loading with an increased risk for erosion and fatigue damages of the propeller's blades. The purpose of the project is to explore the opportunities with surface-treated two-material propellers which are erosion resistant and have low risk for surface-initiated fatigue cracks. Numerical simulations where CFD and the finite element method are combined will be required to simulate the fluid-structure interaction of marine propellers in cavitating flow. Material mechanics theory will be required to investigate the thickness of the extra surface material and other required material characteristics. Cooperations with the shipping industry and propeller manufacturers are planned.

Project 2: Ship motions and added resistance in oblique seas
Modern ship hulls having a pronounced bow flare and wide flat transom sterns introduce wave loads that cannot be handled accurately by traditional methods. A new generation of computational methods to predict the exciting wave forces, ship motions and added resistance in waves is therefore needed. The most advanced methods available today (CFD) are very time consuming which limits their use in practical design work. A method that overcomes these limitations was presented in a previous PhD work at Chalmers University of Technology (Kjellberg 2013). The method fills a gap between traditional methods and the most advanced methods, but it was developed and validated for ships in head seas only. 

In the proposed project the method will be extended to handle oblique seas and coupled ship motions in 6 degrees of freedom. Due to the fully nonlinear representation of the free surface and the geometry, the proposed method is expected to give more accurate predictions of added resistance, motions, accelerations, synchronous and parametric roll as well as structural loads compared to traditional methods. 

In a first step the method is developed for a single ship in a sea state. The method is then in a second step extended to handle relative motions between two or more floating or fixed bodies in waves. Typical applications for the second part of the project is to study under which sea conditions and directions pilot boats can approach a ship or a supply vessel can approach an offshore installation for safe operations.

Please rank and motivate your interest with regard to these two projects. Your competence in relation to the selected project(s) will be evaluated and form the basis for the selection of candidate.

Major responsibilities
Your major responsibilities as a PhD student is to pursue your own doctoral studies. You are expected to develop your own scientific concepts and communicate the results of your research verbally and in writing. Your research will be supervised by well-reputed senior researchers at the involved department. PhD studies also include a number of doctoral courses, reviewing literature, designing research studies, interacting with industrial companies, collecting and analysing empirical data, and reporting research results.

Postition summary
The position generally also includes teaching on Chalmers’ undergraduate level or performing other duties corresponding normally to 10% of working hours. The position is a full-time temporary employment limited to a maximum of 4,5 years (assuming 10 % departmental duties). The starting date is tentatively after the summer of 2017, but somewhat flexible.

After completing PhD studies at Chalmers University of Technology, you will be in great demand from Swedish as well as international industry, and you will have an excellent basis for further academic research as well. Candidates with any nationality are welcome to apply.

A Master of Science degree in Naval Architecture, Marine Technology, Ocean Engineering or similar which include the subjects marine structural engineering and hydrodynamics. Meritorious courses in your MSc-exam are hydrodynamics, CFD, finite element method and, material mechanics.

Excellent ability to speak, read, write and present in English is mandatory. To be successful you have to be highly motivated, have a problem solving ability and enjoy working both by yourself and in close cooperation with others. If Swedish is not your native language, you are encouraged to learn it during your employment. Chalmers offers Swedish courses.

Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers.

Application procedure
The application should be marked with Ref 20170242 and written in English. The application should be sent electronically and be attached as pdf-files, as below:

CV: (Please name the document: CV, Family name, Ref. number)
• Include two references who we can contact; please note that It is highly recommended that you include letters of recommendation from your two references in your application, as we typically get a large number of applications and it is not feasible for us to request individual letters for more than two or three top candidates.

Personal letter: (Please name the document as: Personal letter, Family name, Ref. number) 
• 1-3 pages where you introduce yourself and present your qualifications.
• Previous research fields and main research results.
• Future goals and research focus. Are there any specific projects and research issues you are primarily interested in?

Other documents:
• Copies of master’s or bachelor's theses where appropriate (or URL link where we can retrieve it)
• If possible, please include shorter samples of other technical texts that you have authored or co-authored (e.g. a paper or a report on a smaller project).
• Attested copies and transcripts of completed education, grades and other certificates, eg. TOEFL test results.

Please use the button at the foot of the page to reach the application form. Please submit all of your materials as a single PDF file when possible, or failing that a small number of PDF files. Do not use zip files unless absolutely necessary. Submit no other document formats. 

Application deadline: 10 June 2017

For questions, please contact:
Professor Jonas Ringsberg, Division Head,
+46 31 7721489

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. *** 

Chalmers University of Technology conducts research and education in engineering sciences, architecture, technology-related mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our eight Areas of Advance; Building Futures, Energy, Information & Communication Technology, Life Science, Materials Science, Nanoscience & Nanotechnology, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!