Time-synchronous averaging (TSA) on a fan coast-down
Simulates the switch-off process and starts the TSA analysis.
Calculates the time-synchronous average at variable speed in an application-like scenario: a desk fan is switched off at 2400 RPM and comes to a standstill in about 5 seconds due to air resistance. Tacho and vibration signal are simulated by signal generators. The characteristic calculation cuts a 2.5 second section out of the tacho signal, determines speed and pulse positions, calculates the TSA signal (corresponding to one shaft revolution) and transforms it through FFT.
Workflows in detail
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Fan Switchoff
Simulates the switch-off process and starts the TSA analysis.
Start → signal generator tacho → signal generator vibration → time-synchronous average analysis → end; error flow present.
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Time-Synchronous Average
Characteristic block.
Characteristic start → trim tacho signal to 2.5 s → calculate RPM → determine pulse positions → calculate TSA → FFT → characteristic end.
Take it with you
Import through the SonicTC DbManager — individually or merged into an existing database.
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