Analysis of time-domain signals of piezoelectric strain sensors on slow spinning planetary gearboxes
Performance of piezoelectric strain sensors and measurement chains is analyzed. Sensors are applied on a planetary gearbox on a test rig for wind energy converters. Surface strain condition on the gearbox ring gear is analyzed with FE-simulations. Measurement data show high signal-to-noise-ratios and very good reproducibility. Planetary load distribution and dynamic torque can be inferred from strain data.
piezoelectric strain planetary gearboxes wind energy converter condition monitoring time-domain-signals