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Computational modeling study reveals optimized spider pin profiling expands liquid lubrication zones in wind turbine planetary gears, suggesting improved bearing durability under extreme loads.
The operating conditions and requirements for hydrodynamic bearings in planetary drives of powerful wind turbines are analyzed. A method has been developed for solving thermoelastic hydrodynamic (TEHD) lubrication problem for hydrodynamic bearing of spider pin. A computational algorithm has been developed for the joint numerical solution of problems in fluid lubrication, thermodynamics, and the theory of elasticity. The calculation results of maximum pressures, minimum clearances, load capacity, friction moments, elastic deformations, and mixed lubrication zones under extreme loading conditions are presented. The approach to expanding the zone with a liquid lubrication mode by profiling the support surface of spider pin is substantiated and verified.
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Luo Yuan (2026) studied this question.
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