INFLUENCE ON BOLTS OF WIND TURBINE BLADE ROOT BUSHING CONNECTION BY CONNECTION PARAMETERS

Fiber Reinforced Plastics/Composites ›› 2019, Vol. 0 ›› Issue (9): 38-43.

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INFLUENCE ON BOLTS OF WIND TURBINE BLADE ROOT BUSHING CONNECTION BY CONNECTION PARAMETERS

BAI Hui-chao, SU Shao-chang, ZHANG Wen-wei, DENG Hang^*

Zhuzhou Times New Material Technology CO., Ltd., Zhuzhou 412007, China

Received:2019-03-26 Online:2019-09-28 Published:2019-09-28

Abstract

Abstract: The influence of typical parameters to the strength of bushing connection bolts is analyzed, such as the thickness of flange, pretension force, the shaft diameter of bolt, and the initial thread depth of bushing. The results show that: ①The ultimate bearing capacity of the connection bolt can be increased by reducing the pretension force, increasing the thickness of flange, increasing the shaft diameter of the bolt, and reducing the initial thread depth of bushing; ②The fatigue life of connection bolt can be increased by increasing the pretension force, increasing the thickness of the flange and reducing the shaft diameter of bolts. Compared with the three parameters above, increasing the initial thread depth of the busing has the least influence on the fatigue life of the connection bolt.

Key words: bushing connection, connection parameters, connection bolt, extreme strength, fatigue strength

CLC Number:

TB332

BAI Hui-chao, SU Shao-chang, ZHANG Wen-wei, DENG Hang. INFLUENCE ON BOLTS OF WIND TURBINE BLADE ROOT BUSHING CONNECTION BY CONNECTION PARAMETERS[J]. Fiber Reinforced Plastics/Composites, 2019, 0(9): 38-43.

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INFLUENCE ON BOLTS OF WIND TURBINE BLADE ROOT BUSHING CONNECTION BY CONNECTION PARAMETERS

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