Nadtochij O. Diagnostics of cylinder-piston group of a diesel engine a grain to clean of combine on vibro-acoustics to parameters

The object of research is the diesel engine grain harvester. The purpose of research is consist in rise of reliability (no-failure operation) of a diesel engine by refinement of a method diagnosing of cylinder-piston group behind parameters of shock impulses selected in for resonance to a zone of a ultrasonic range. The technique of researches was based on a system approach, with selection of a functional subsystem " a barrel of cylinders - piston ". For record and cultivation of experimental data the complex МІС-200 on base PC was used. The novelty is consist in refinement of mathematical model of radial moving of the piston in a split and obtaining with its(her) help of dependences, research of amplitude-frequency characteristics of the vibration channel on frequency up to 100 kHz, prediction of a residual resource behind the obtained parameters of a phase of impact. The method is inserted in a CIS "АТІС". The effect from implantation has made 152 $ on a drive for a season. The method can be used in an orb of technical tools in Agriculture of Ukraine.