For the search of rational engineering solutions on the design of vibroisolating devices of a machine functioning under conditions of a floating shop there is used a method of a morphological analysis. The undertakings carried out allowed solving a problem at the level of a structural arrangement optimization and parametric synthesis and creating new designs of a vibroisolating support and a vibroisolating device. On the basis of the regulations of a mass service theory there is offered a method for the operation reliability estimation of a machine vibroisolating device with the use of a graduated graph of states taking into account failure and restoration flows. The state of the system is determined by a set of equations of final likelihoods. A machine experiment has shown maintainability high enough of a vibroisolating device (more than 96 % of its life the device is in its operational status, and about 4% - in the repair (restoration) state of its subsystems). To the least reliable subsystem it should be related a drive (failure probability – 2.11%), further – vibro-isolator (failure probability – 1%), then – a body – (0.52%) and a fastening device (0.26%). The method allows defining device maintainability with the aid of a machine experiment and revealing least reliable subsystems and elements and also an expediency of their parametrical optimization.
machine vibroisolating device, reliability, failure flow rate, restoration flow, equation of final likelihood.
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