Objective
The objective of this project is to establish a rationale of strength and fatigue testing.
If wind energy is to contribute to a greater extent to the electricity production, the generating cost has further to be reduced. This can be achieved by the reduction of machine manufacturing cost and by the improvement of system and structural reliability. Machines may become improved by thorough fatigue life analysis in the design phase. An important cost driver of a wind turbine is among others the rotor. A sensible method of making turbine rotors cheaper is obtained by making them lighter. To guarantee a rotor blade against early failure, whether caused by insufficient strength or fatigue, it is necessary to check the design by an approval test. In particular the fatigue life analysis is still quite unreliable, a specimen tested in laboratory conditions will fail quite often by Miner summations between 0.25 and 4 for constant amplitude test and between 0.6 and 1.6 for variable amplitude test. One method, and maybe the only method, to proof the reliability of the design is to perform a full scale strength and fatigue test. These tests might also be required in future by the certification authorities to get a full type certificate.
Main project items :
- Recommendations on procedures and criteria with regard to :
. strength tests (ST);
. dynamic tests (DT);
. fatigue tests (FT).
[Address the "should" and if so "when" question]
- Ibid on test procedures, such as :
. number of cross sections at which design loads has to be simulated (ST & FT);
. elastic behaviour, natural frequencies and ditto modes and mechanical damping (DT);
. rational on strength and fatigue boundary (ST & FT);
. rational on the translation of design to that fatigue spectrum (FT); . indication of strength and fatigue margins.
[Address the "how" question]
- Demonstration of these kind of tests.
- Cost & benefit analyses.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
PETTEN
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.