The paper presents results of measurements conducted during multi-stage studies on injectors of WOLA 72H6 engine. The research was conducted to determine the technical condition of the injectors during their operation. As a result of the injector modeling in the CAD environment, the resonant frequencies of the examined element were obtained. The next stage of the study was a stand-alone tests with the simultaneous recording of vibration parameters. The aim of records was to link the vibration parameters with the technical condition of the tested injectors. The study series was finished with measurements on a real object test stand.
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