8.CWP 2023 Geislinger presentation.pdf

1、Powertrain Technologies:Powertrain Technologies:Enablers to Robust and Tonality-Free Enablers to Robust and Tonality-Free High-Torque Density DrivetrainsHigh-Torque Density DrivetrainsCHINA WIND POWER 2023CHINA WIND POWER 2023Beijing,18 October,20232|CWP 2023:Powertrain Technologies:Enablers to Robu

2、st and Tonality-Free High-Torque Density Drivetrains Geislinger GmbHSTRUCTURE1.Introduction2.Low-Speed Shaft Coupling3.Carbon Fiber Sun Shaft4.Viscous Damper5.Summary3|CWP 2023:Powertrain Technologies:Enablers to Robust and Tonality-Free High-Torque Density Drivetrains Geislinger GmbHReduced Masking

3、 Energy:Over-10 dB due to aerodynamic blade design Low wind speed operating modes Wind turbine noise dominated by aerodynamic blade noise(B.Petitjean,et al.,2011)TonallityDrivetrain tonality(Micromega Dynamics)Mechanical sound becomes audible NEW TONALITY CHALLENGES4|CWP 2023:Powertrain Technologies

4、:Enablers to Robust and Tonality-Free High-Torque Density Drivetrains Geislinger GmbHNEW TONALITY CHALLENGESEver Increasing Torque Density:Excitation energy increases as damping mass goes downAdvanced tonality mitigation presumably essential!Evolution of torque density 2010 versus 2020(ZF Wind Power

5、)Trend towards mid-speed:direct coupled system,no damping5|CWP 2023:Powertrain Technologies:Enablers to Robust and Tonality-Free High-Torque Density Drivetrains Geislinger GmbHDECOUPLING EMITTING SURFACES DT free of non-torque loads Robust&fatigue resistant 100%maintenance-free Nearly 1.000 in field

6、Composite LSS Coupling Compowind:6|CWP 2023:Powertrain Technologies:Enablers to Robust and Tonality-Free High-Torque Density Drivetrains Geislinger GmbH Drivetains free of Non-Torque Loads Enhanced Dynamic System BehaviourCOMPOWIND LLS COUPLINGIllustrations:Dynamic load comparision by CWD Aachen of