CALCULATION OF THE CENTRIFULAL PUMP CRITICAL FREQUENCIES BASED ON ITS DISCRETE MATHEMATICAL MODEL

Calculations of the centrifugal machines critical frequencies rotors are currently carried out on basis finite element method using multi-functional software as same ANSYS and other similar, that work with elements three-dimensional type, well some specialized computer programs working beam-type elements. Anyway, is used. But in this case an user needs a lot time for prepation initial data. Therefore, article presents calculation rotor fuel pump liquid-propellant engine based its discrete model. This also includes algorithm results clarification. model has been verificated by comparing obtained calculations beam clarification without it.