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2 years 2 months ago - 2 years 2 months ago #12 by Swedish Wind Power Technology Centre
Comments from SWPTC was created by Swedish Wind Power Technology Centre
Comments below is written in the name of Swedish Wind Power Technology Centre. The Centre is organised in theme groups and we have written the comments in the same way.

Theme group 3 - Mechanical systems and structures
Theme group leader: Viktor Berbyuk, Dynamics, Chalmers University of Technology

From this theme group the following scientific challenges were highlighted as interesting.

Scientific challenge 1-2: To target the performance / cost ratio with new materials and manufacturing methods.

Scientific challenge 1-3: To better understand and predict the response of a (hybrid) joint under multi-axial fatigue loading.

Scientific challenge 5-1: To use the understanding of the physical limitations to shift or avoid these limitations and to enable assessment of the potential of the different possible drivetrain components.

Scientific challenge 5-2: To develop a thorough understanding of the key failure mechanisms of electromechanical drivetrain components to design more reliable drivetrains and to develop better methods for condition monitoring.

Scientific challenge 5-3: To develop experimentally validated integrated design models and tools allowing the evaluation of the multi-scale problem of the system dynamics to improve understanding of local loads and to enable the design of more reliable electromechanical drivetrains.

Scientific challenge 6-4: To strongly improve the structural failure modelling and to take initiatives to adapt structural failure models used in other areas of technology. To acquire detailed information about the design and the operational conditions of wind turbines. To define future levels of design, manufacturing, material and maintenance tolerances. To acquire more extensive information about the actual external conditions in which wind turbines and wind systems are operating.

Theme group 4 - Offshore
Theme group leader: Rasmus Rempling, Structural Engineering, Chalmers University of Technology

Within offshore research, the Agenda considers the environment and remoteness as fundamental parts of the challenges.

The environment creates a need for development of new material innovations used in all components of the energy system, in order to decrease the substantial costs for protective coating used at offshore structures. A big challenge is the foundation-soil interaction of offshore wind sub-structures. This together with the largely unknown soil properties and their degradation over time creates uncertainties in design that creates high risk levels in the investment.

The remoteness of the energy system calls for a development of robust systems that can minimise or even eliminate unexpected failures. Another approach is to develop preventive/predictive maintenance processes with use of new hardware and software. In addition, the costs of construction of remote wind energy offshore is a huge hinder, which calls for new innovative construction processes and design procedures that can decrease these costs.

The offshore theme group consider the conclusions in the agenda to be well supported and justified. The research proposed is in line with the analysis of the group.
Last edit: 2 years 2 months ago by Swedish Wind Power Technology Centre.

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