CONSTRUCTION OF TEST PLATFORM FOR WIND TURBINE BLADE SUB-COMPONENTS AND RESEARCH ON MECHANICAL PROPERTIES OF PULTRUDED SHEETS

He Ying; Wang Yuanbo; Duan Jiahao; Li Jianwei; Zhang Leian; Huang Xuemei

doi:10.19912/j.0254-0096.tynxb.2021-1348

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (8) : 415-421. DOI: 10.19912/j.0254-0096.tynxb.2021-1348

CONSTRUCTION OF TEST PLATFORM FOR WIND TURBINE BLADE SUB-COMPONENTS AND RESEARCH ON MECHANICAL PROPERTIES OF PULTRUDED SHEETS

He Ying, Wang Yuanbo, Duan Jiahao, Li Jianwei, Zhang Leian, Huang Xuemei

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Abstract

In order to investigate the strength testing system of wind turbine blades and the mechanical behavior of pultrusion plate, firstly, a testing technique for wind turbine blade pyramid structure was proposed, and a new concept of sub-component testing was proposed. Secondly, the mechanical structure, hydraulic system and control scheme of the sub component test facility are designed and verified by finite element analysis. Finally, the static loading tests are performed on subcomponents, i.e. pultruded sheets, based on the designed test facility. Test results showed that the test scheme of wind turbine blade pyramid structure is accurate and feasible; the maximum stress of the component test facility occurs in the rear beam of the loading bracket, the maximum stress is 242.5 MPa, and the maximum displacement is 1.049 mm, which does not exceed its structural stress-strain limit; the damage load of the pultruded plate is 800 kN, the failure deformation pattern includes three stages of elasticity, yielding and fracture. The FEA data are in good agreement with the test results, and the final results can provide data reference for testing the local failure condition of the full-size blade.

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wind turbine blades / pultrusion / test facility / sub-component / finite element analysis / pyramid method

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He Ying, Wang Yuanbo, Duan Jiahao, Li Jianwei, Zhang Leian, Huang Xuemei. CONSTRUCTION OF TEST PLATFORM FOR WIND TURBINE BLADE SUB-COMPONENTS AND RESEARCH ON MECHANICAL PROPERTIES OF PULTRUDED SHEETS[J]. Acta Energiae Solaris Sinica. 2022, 43(8): 415-421 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1348

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