Study the effect of bearing type on the whirl orbit and bearing phenomena of dual rotor

الملخص EN

This research presents a stude of the effect of bearing type or the whirl orbit.

number of loops and the period of beating phenomena of the dual rotor running with different sbeeds.tyyo type of bearinj had been studied.

One with general case of supp and case of spport and intcrshalt bearinj sti tntchalt steness represented as springs while the othel one is aberinj with flyid film rebresened as sbrinj and damper.

Lajranjin eqyation ysed to have the matrix of rotor element with (33*33)boynd.and the transfer matrix method ysed to jet the poant.felid bearing matrix and the stal bector whieh conneeted the ends of rotor elements and the eqyation of motion.

Mathlp program had beem ysed to solve the matrix and draw the resylts with takblot program for veritication pyrposes with another prograin written in fortren (77) which ysed in axis research a gree mch take place as chown in tables