Frequency-Domain System Identification for Linear Time-Periodic Systems with Application to Wind Turbine Dynamics and CSLDV

Experimental Studies of Dynamic Systems Why Perform Tests? Model Validation-"All models are wrong" (D. Smallwood)Exploratory Tests-Diagnose Failure-Health Monitoring-Some physics remain poorly understood; tests are needed to help to create models and guide design.-Aerodynamics-Coupling between structure and nonlinear magnetic generator?-Backlash in gears?-How?