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The wind energy industry is rapidly evolving, with an increasing demand for high-torque density drivetrains that are not only cost-efficient but also complying with strict noise requirements and are more resilient. This article explores how Geislinger is tackling these challenges with innovations like the low-speed shaft coupling (LSSC) and Silentshaft® composite driveshaft. These technologies address critical issues in modern wind turbines, such as tonal noise and parasitic drivetrain loads - factors that have become more prominent with rising power density and proximity of turbines to urban areas.
One key focus is on minimizing NVH (noise, vibration, harshness) behavior in drivetrain systems. Geislinger’s LSSC, a low-speed coupling made of advanced composites, effectively reduces gearbox input loads, decreasing parasitic forces and enabling robust, high-performance powertrains. Studies show the LSSC can absorb over 90% of these loads, significantly enhancing turbine longevity and reducing maintenance costs.
In dynamic simulations, the LSSC demonstrated impressive tonality reduction, cutting blade accelerations by up to 85% and reducing sound power from rotor blades by up to 16.5 decibels—remarkable progress in noise control. Geislinger’s Silentshaft®, a composite driveshaft, also improves drivetrain resilience while its main value is to lower the sun shaft stiffness to such an extent to shift resonance frequencies below any eigenmodes and isolate the system from vibration to achieve better compatibility with high-density gearboxes.
The Geislinger GESILCO® Silentshaft.
With additional advances like the Geislinger Hub we are paving the way for quieter, more durable, and scalable turbines. Their technology, currently under validation in major wind platforms, could soon set new standards for both onshore and offshore installations, supporting the next generation of sustainable energy solutions.
For a deeper dive into these groundbreaking developments and what they mean for the future of wind energy, read the full article here.