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COMBINED RESEARCHES ON THE SAFETY EVALUATION OF A PRESSED JOINT


ILIESCU NICOLAE*, ATANASIU COSTICÄ‚*, NÄ‚STÄ‚SESCU VASILE**
* UNIVERSITY POLITEHNICA OF BUCHAREST, ** TECHNICAL MILITARY ACADEMY OF BUCHAREST

Issue:

MOCM, Number 11, Volume I

Section:

Methods And Techniques In Strain And Stress Research

Abstract:

The torsion moment transmitted by the driving axle of a electric locomotive, in the skidding regime of the wheels, was experimentally determined by a special measuring transducer. The contact pressure in the pressed joint between the axle and the locomotive wheel was determined by calculus using a finite element analysis (FEA). The stress state, both in the wheel hub as well as in the axle, was also investigated. Using the average value of the contact pressure, the maximum torsion moment transmitted by the pressed joint was calculated. By calculating the ratio between the maximum torsion moment value obtained by calculus and the torsion moment value determined experimentally, in the skidding regime of the driving wheels, the safety coefficient of the pressed joint was established.

Keywords:

axle, hub wheel, safety coefficient, skidding.

Code [ID]:

MOCM200511V01S01A0020 [0000319]


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