Open AccessDIAGNOSIS OF INJECTORS OF HIGH-SPEED MARINE DIESEL ENGINES
Author(s) -
Konstantin Olegovich Sergeev,
Andrew Adol'fovich Pankratov
Publication year - 2017
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: morskaâ tehnika i tehnologiâ
Language(s) - English
Resource type - Journals
eISSN - 2225-0352
pISSN - 2073-1574
DOI - 10.24143/2073-1574-2017-1-50-58
Subject(s) - injector , signal (programming language) , vibration , power (physics) , acoustics , accelerometer , automotive engineering , idle , diesel fuel , rotational speed , diesel engine , engineering , computer science , mechanical engineering , physics , quantum mechanics , programming language , operating system
The method of determining the technical condition of the injector of high-speed diesel using the method of vibration control on the injector body is considered. Vibration signal is measured by the accelerometer and is filtered by 1/3 - octave filter with a center frequency of 63 kHz. The measurements were performed at idle, 20%, 33%, 66% and 100% of rated power, as well as on the nominal power with an artificially introduced defect of the injector - spring breakage. The temporal realization of the signal is used for diagnosis. The conclusions about the nature of the change in the temporal realization of vibration signal depending on the power state and the presence of faults have been made. The possibility of determining of the cyclic supply and cylinder output using the vibration signal was estimated. The direction of further research to improve the accuracy of diagnosis has been proposed.