Overview
The Division of Dynamics at the Department of Applied Mechanics is seeking a new PhD student to start in the spring of 2011. The research will be conducted within the project described below.
PhD project: Validation of Wind Turbine Structural Dynamics Models
In the analysis and simulation based optimization of wind turbines, it is crucial that the models that are used give a sufficiently accurate representation of real world characteristics. The reason for this is obvious. Since optimization relies on evaluation of gradients of objectives and constraints with respect to a set of design parameters, or ranking within a set of designs based on realizations of such parameters, it is of major concern that results are accurate enough for gradient evaluations.
The structural responses from transient and non-linear events are strongly dependent on the structural dynamics system characteristics. As turbines are progressively made larger, more slender and more flexible, the requirements of the dynamic characterization of turbine models increase.
One purpose of the research conducted within the newly established Swedish Wind Power Technology Center at Chalmers University of Technology is to better enable the design via simulation at system level. For reliable system simulations, it is important that the physics of the underlying subsystems are properly modelled and proved to be so by experimental validation. This project focuses on the structural dynamics modelling of the most critical and complex structure of a wind turbine, the blade.
When adding rotation and aerodynamics on a turbine the blade interacts with the air and deflects. Gravity and inertia loading contributes to a complex dynamic system with coupling to the rest of the structure. Structural and aerodynamic damping is different in different directions. Shear and torsional properties are increasingly more important to consider and understand the longer and more slender the blade gets. How advanced blade models can be incorporated into an efficient simulation environment is part of the scope in this project.
Required qualifications
A suitable background is a Master of Science (Swedish: civilingenjör) in mechanical engineering, engineering physics or civil engineering with emphasis on applied and computational mechanics. A strong interest in modeling, simulation and experimental validation of models is required.
Knowledge of the Swedish language is desirable but not a requirement. However, all PhD Students are expected to be able to teach in Swedish as well as in English after two years of employment. Those who do not have Swedish as their mother tongue are offered courses in the Swedish language.
Application procedure
The application shall be written in English and include the following items:
1.An application of a maximum of one A4 page containing your specific qualifications for the position
2.Attested copies of education certificates, including grade reports and other documents
3.Curriculum Vitae
4.Letters of recommendation and name of reference persons (optional)
The application shall be sent electronically as pdf or zipped documents. Please use the button at the foot of the page to reach the application form.
If any material is not available electronically or cannot be transferred to pdf format, the material can be sent as a hard copy to Registrar. The applicants name and the reference number (2010/272) must be written on the first page of the application.
Address:
Registrar
Chalmers University of Technology
SE-412 96 Göteborg
Sweden
Further information
Thomas Abrahamsson
Phone: +46-31-7721506
E-mail: thomas.abrahamsson@chalmers.se
Please kindly mention Scholarization.blogspot.com when applying for this scholarship
The Division of Dynamics at the Department of Applied Mechanics is seeking a new PhD student to start in the spring of 2011. The research will be conducted within the project described below.
PhD project: Validation of Wind Turbine Structural Dynamics Models
In the analysis and simulation based optimization of wind turbines, it is crucial that the models that are used give a sufficiently accurate representation of real world characteristics. The reason for this is obvious. Since optimization relies on evaluation of gradients of objectives and constraints with respect to a set of design parameters, or ranking within a set of designs based on realizations of such parameters, it is of major concern that results are accurate enough for gradient evaluations.
The structural responses from transient and non-linear events are strongly dependent on the structural dynamics system characteristics. As turbines are progressively made larger, more slender and more flexible, the requirements of the dynamic characterization of turbine models increase.
One purpose of the research conducted within the newly established Swedish Wind Power Technology Center at Chalmers University of Technology is to better enable the design via simulation at system level. For reliable system simulations, it is important that the physics of the underlying subsystems are properly modelled and proved to be so by experimental validation. This project focuses on the structural dynamics modelling of the most critical and complex structure of a wind turbine, the blade.
When adding rotation and aerodynamics on a turbine the blade interacts with the air and deflects. Gravity and inertia loading contributes to a complex dynamic system with coupling to the rest of the structure. Structural and aerodynamic damping is different in different directions. Shear and torsional properties are increasingly more important to consider and understand the longer and more slender the blade gets. How advanced blade models can be incorporated into an efficient simulation environment is part of the scope in this project.
Required qualifications
A suitable background is a Master of Science (Swedish: civilingenjör) in mechanical engineering, engineering physics or civil engineering with emphasis on applied and computational mechanics. A strong interest in modeling, simulation and experimental validation of models is required.
Knowledge of the Swedish language is desirable but not a requirement. However, all PhD Students are expected to be able to teach in Swedish as well as in English after two years of employment. Those who do not have Swedish as their mother tongue are offered courses in the Swedish language.
Application procedure
The application shall be written in English and include the following items:
1.An application of a maximum of one A4 page containing your specific qualifications for the position
2.Attested copies of education certificates, including grade reports and other documents
3.Curriculum Vitae
4.Letters of recommendation and name of reference persons (optional)
The application shall be sent electronically as pdf or zipped documents. Please use the button at the foot of the page to reach the application form.
If any material is not available electronically or cannot be transferred to pdf format, the material can be sent as a hard copy to Registrar. The applicants name and the reference number (2010/272) must be written on the first page of the application.
Address:
Registrar
Chalmers University of Technology
SE-412 96 Göteborg
Sweden
Further information
Thomas Abrahamsson
Phone: +46-31-7721506
E-mail: thomas.abrahamsson@chalmers.se
Please kindly mention Scholarization.blogspot.com when applying for this scholarship
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