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Title: Design Evaluation of Wind Turbine Spline Couplings Using an Analytical Model: Preprint

Articulated splines are commonly used in the planetary stage of wind turbine gearboxes for transmitting the driving torque and improving load sharing. Direct measurement of spline loads and performance is extremely challenging because of limited accessibility. This paper presents an analytical model for the analysis of articulated spline coupling designs. For a given torque and shaft misalignment, this analytical model quickly yields insights into relationships between the spline design parameters and resulting loads; bending, contact, and shear stresses; and safety factors considering various heat treatment methods. Comparisons of this analytical model against previously published computational approaches are also presented.
Authors:
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Publication Date:
OSTI Identifier:
1170352
Report Number(s):
NREL/CP-5000-63507
DOE Contract Number:
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: To be presented at the Conference for Wind Power Drives, 3-4 March 2015, Aachen, Germany
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Wind Power Technologies Office
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY WIND TURBINE GEARBOX; SPLINE LOADS; ANALYTICAL MODEL; ARTICULATED SPLINE COUPLING; NREL; Wind Energy