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Showing 1 to 6 of 6 for “"fan motor"”.
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Test and analysis methods for resolving fan/motor vibration problems in air-conditioning units
… 685-RP: Test and Analysis Methods for Resolving Fan/Motor Vibration Problems in Air-Conditioning Units. The objective is to develop the basic analytical models and experimental procedures that can be used to find the vibration modes associated with fan impeller, motor and motor mount in …
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Diagnostic test and analytical methods for resolving fan/motor vibration problems in air-conditioning units
… Standard for small (<36 in. diameter) propeller fans. Test and analysis procedures also need to be used to convert AHRAE Standard 87.1 - 1992 test results where the fan hub mobility is zero to corresponding results that will exist with a finite (nonzero) hub mobility; In this project, the …
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Using Motor Electrical Signature Analysis to Determine the Mechanical Condition of Vane-Axial Fans
… of this research was a proof of concept using a fan motor stator as transducer to monitor motor rotor and attached axial fan for mechanical motion. The proof was to determine whether bearing faults and fan imbalances could be detected in vane-axial fans using Motor Electrical Signature Analysis …
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Applying mass and energy balances to model series and parallel fan-powered terminal units.
Performance data from four manufacturers of fan-powered terminal units was analyzed and simple models of the fan/motor power use developed. These data included two fan motors: permanent split capacitor motors with silicon controlled rectifier control and electronically commutated motors. Fan sizes …
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Machine Learning Applications for Time Series Data: Motor Anomaly Detection and Mean Arterial Blood Pressure Estimation
… using timeseries data: (1) TinyML for Anomalous Motor Operation Detection, and (2) Estimation of Mean Arterial Blood Pressure (MAP) from ultrasound measurements. In the first application, we explore different algorithms for detecting anomalous fan motor operation on a small microcontroller unit …
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Scaled electromechanical modeling of the F-35A Joint Strike Fighter
… the aerodynamic surfaces; high speed ducted fan motor for providing the necessary thrust, and LEDs to mimic the aircraft's external lighting system. Despite some minor differences in detail, the F-35A 25:1 scaled model closely resembled most of the physical features contained in the Joint …