美國MTS/Wind Turbine Blade Fatigue Test Solutions
Apply single- and dual-axis cyclic loading to full-scale wind turbine blades and sub-components at resonant frequencies to meet fatigue-testing demands of International Electrotechnical Commission (IEC) Technical Specification 61400-23. The MTS offering includes two complementary solutions: the fast, powerful Ground-coupled Resonance Excitation (GREX) System, and the flexible, efficient Inertial Resonance Excitation (IREX) System.
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Diagram1. Reaction Block 2. Hydraulic Service Manifold 3. Ground Resonance Excitation (GREX) System 4. Wind Turbine Blade Specimen 5. Loading Fixture Force capacity 50 kN Actuator Length 5.67 m at mid-stroke Stroke 1.75 m Velocity 2.5 m/sec (@25kN force) Servovalve 450 lpm Extension Tube Up to 3m extension Hydraulic System 260 lpm (minimum recommended) Accumulation required 75 L Pressure / 37.75 L Return (recommended)