China’s first and the world’s largest 35MW Six Degrees of Freedom and Drivetrain Back-to-Back Test Bench was officially put into operation at Sany Renewable Energy’s Wind Power Testing Center, the developer has revealed.
This test bench, independently developed and designed by Sany Renewable Energy, uses a 100% domestic supply chain and is capable of simulating the full lifecycle of wind turbines up to 35MW.
Equipped with six 100-tonne hydraulic cylinders, it applies multi-directional, coordinated loads across six degrees of freedom, allowing for extreme, multi-axis stress testing.
With a maximum driving torque of 36MNm and a bending moment of up to 80MNm, it accurately simulates complex weather conditions and extreme working environments, withstanding typhoon-level winds.
By utilising high-intensity accelerated fatigue tests, the test bench simulates 20 years of wind farm operation in just one year, Sany said.
It can simultaneously perform functional tests, failure limit verification, and design model validation on the entire turbine and key components such as generators, gearboxes, and main shafts