Master Thesis - FEM the wood revolution

Personality / Commitment

MODVION develops tall towers to keep up the development of increasing cost-efficiency in Wind Power. A demanding and rewarding architectural as well as engineering task requiring ingenuity and an ability to think outside the box. Conventional tower construction have reached the end of the road. Using the development in Engineered

Wood Products (EWP), Modvion have been able to design towers with steep cost advantages and that also reduces CO2 in the atmosphere while being produced.

Project

A design for a 150m tall wind turbine tower constructed from wood has been proposed. The design is modular and comprised of several panels fitted together to form a tower. This thesis aims at in depth analysis of the joints holding the panels together. Several aspects must be taken into consideration in this work such as: wind turbine load cases, fatigue life, joining technology, composite mechanics, etc. Both transverse and longitudinal joints will be in the scope. Optionally the work can be extended to include connections to the foundation as well as the turbine nacelle.

Strength tests, including fatigue, have been carried out at RISE (former SP) institute facilities in Borås with excellent results. This thesis will develop an advanced FEM method for in-depth analysis of inner joint mechanics. The ultimate goal will be to reproduce the laboratory test results and describe what is going on inside the joint. This knowledge will be used to propose design improvements.

Keywords; Wind turbines, wood, complex material modelling, FEM, Structural simulations, static and dynamic loading, joints.

Job / Skills

Recommended qualifications
- Interest in modern wood construction, renewable energy and sustainability.
- Master of Science studies in Mechanical Engineering / Civil Engineering / Architecture / Architectural Engineering. The student's qualifications can preferably be complementary to each other.

Preferable but not essential
- Practical experience of construction.
- Knowledge in FEM, structural dynamics and/or structural mechanics and/ or structural engineering.
- FEM methods of composite structures.

Interested in this Thesis and have any questions?

Contact Mikael Almquist (ALTEN), Mikael.almquist@alten.se or Erik Dölerud (Modvion), Erik@modvion.com

Information

Ansökningstiden : 05/11/2018
Kontakt : Fanny Strömberg
Region : Sweden - Västra Götaland - Gothenburg

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