Projekter pr. år
Abstract
This paper presents a qualitative design tool for evaluation of the risk for fluid power pitch systems. The design tool is developed with special attention to industry standard failure analysis methods and is aimed at the early phase of system design. Firstly, the concept of Fault Tree Analysis (FTA) is used for systematic description of fault propagation linking failure modes to system effects. The methodology is conducted solely on a circuit diagram and functional behavior. The Failure Mode and Effect Criticality Analysis (FMECA) is subsequently employed to determine the failure mode risk via the Risk Priority Number (RPN). The FMECA is based on past research concerning failure analysis of wind turbine drive trains. Guidelines are given to select the severity, occurrence and detection score that make up the RPN. The usability
of the method is shown in a case study of a fluid power pitch system applied to wind turbines. The results show a good agreement to recent field failure data for offshore turbines where the dominating failure modes are valve, accumulator and leakage. The results are further used for making design improvements to lower the overall risk of the pitch system
of the method is shown in a case study of a fluid power pitch system applied to wind turbines. The results show a good agreement to recent field failure data for offshore turbines where the dominating failure modes are valve, accumulator and leakage. The results are further used for making design improvements to lower the overall risk of the pitch system
Originalsprog | Engelsk |
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Tidsskrift | Wind Energy |
Vol/bind | 20 |
Udgave nummer | 6 |
Sider (fra-til) | 1097-1110 |
Antal sider | 14 |
ISSN | 1095-4244 |
DOI | |
Status | Udgivet - maj 2017 |
Fingeraftryk
Dyk ned i forskningsemnerne om 'Reliability Based Design of Fluid Power Pitch Systems for Wind Turbines'. Sammen danner de et unikt fingeraftryk.Projekter
- 1 Afsluttet
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Hydratech: Future Hydraulic Pitch Systems
Pedersen, H. C. (Projektdeltager), Liniger, J. (Projektdeltager) & Guldbæk, B. K. (Projektkoordinator)
01/01/2014 → 30/06/2017
Projekter: Projekt › Forskning
Publikation
- 18 Citationer
- 1 Konferenceartikel i proceeding
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Estimation of prepressure in hydraulic piston accumulators for industrial wind turbines using multi-model adaptive estimation
Sørensen, F. F., von Benzon, M. S. R., Klemmensen, S. S., Schmidt, K. & Liniger, J., dec. 2019, Proceedings of the ASME/BATH 2019 Symposium on Fluid Power and Motion Control. The American Society of Mechanical Engineers (ASME), 11 s. FPMC2019-1665Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review
3 Citationer (Scopus)