Reference case: Assessment for Aero-elastic Composite Rotor Blade - The Netherlands

Having developed an aero-elastic composite rotor blade for its wind turbines, WE4CE B.V. collaborated with TÜV Rheinland for the design assessment and certification of this specific component in accordance with the GL 2010 directive. Compliance with GL requires design assessment, implementation of design requirements in production and erection, evaluation of quality management and prototype testing.

TÜV Rheinland assessed and certified the rotor blade design enabling WE4CE B.V. to fulfill the necessary conditions and requirements for such wind turbine components demanded in the global wind industry. For this project, two wind energy experts carried out an assessment of the rotor blades according to submitted documentation. Furthermore, safety tests based on the latest calculation processes and according to GL 2010 were conducted on the static loadings. The work scope included the design assessment of the rotor blade root connection assembly and lightning protection system as well as the final design certification.

Because of the specific design and the very tight safety margin dictated by WE4CE B.V., TÜV Rheinland experts implemented alternative and more precise testing methods in accordance with certification requirements for the design verification. In addition, effective project and time management led to successful completion before the scheduled project deadline.

TÜV Rheinland supported the Dutch WE4CE B.V. rotor blade design consultancy with:

• Dedicated and experienced experts for rotor blade design evaluation.

• Extensive experience in the verification of static and dynamic calculations.

• Effective and fast project management.

• Compliance to the demands and requirements of rotor blades in the global wind business.

Founded 140 years ago, TÜV Rheinland is a global leader in independent inspection services, ensuring quality and safety for people, the environment and technology in nearly all aspects of life.

We can support wind energy projects with a wide range of services covering all project phases – from development and design to construction and operation. We are accredited by the German Accreditation Body (DAkkS) as a Certification Body for type and component certification of wind turbines in accordance with the international standard IEC 61400-22.