Propiedades estructurales de ejes huecos y sólidos con una grieta plana//Structural proprieties of hollow and whole axles, with a flat crack

Authors

  • Jon‐Ariza De‐Miguel Odessa National Polytechnic University, Machine Sciences’ Department, Odessa
  • Sergiy S. Gutyrya Odessa National Polytechnic University, Machine Sciences’ Department, Odessa
  • Yuri M. Jomyak Odessa National Polytechnic University, Machine Sciences’ Department, Odessa

Abstract

En este trabajo se estudiaron las diversas ventajas constructivas que los ejes huecos presentan respecto a los sólidos, como la reducción de masa, mejor control de calidad, menores defectos en producción y facilidad de acoplamiento. De ahí su profusión en aplicaciones industriales, como ejes de ferrocarril, de reductores o en calandrias. Dichas ventajas se ven alteradas cuando el eje trabaja a fatiga en flexión rotativa y aparece una grieta sobre el mismo. Se comprobaron dichas ventajas y sus variaciones sobre un modelo inicial de una grieta plana superficial, y se ha observado que los ejes huecos resultan más perjudicados por estas grietas para ciertos valores del diámetro interior, mientras que para otros son ventajosos. Se concluye del presente estudio que puede establecerse un rango de valores para el diámetro interior de ejes huecos en el cual su aprovechamiento sería
óptimo.

Palabras claves: ejes huecos y sólidos, propiedades estructurales, grieta plana.
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Abstract

This work studies the several advantages hollow axles show when compared to whole ones, such as lightness, better quality control, less manufacturing defects, coupling simplicity. Thence their being profusely employed in industry, in applications like railway axles, gearboxes or calenders. These
advantages are altered when the axle works under bending with rotation under fatigue and a crack appears on its surface. An analytical research upon a flat surface crack model has been made of these advantages and their variations and it has been observed that hollow axles suffer more from these cracks than whole ones for certain inner diameter values, whereas for others even less than whole ones. It can be deduced that a gap for the inner diameter can be ascertained, where the axle´s rendering would be optimal.

Key words: hollowand whole axles, structural properties, flat crack.

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How to Cite

1.
De‐Miguel J, Gutyrya SS, Jomyak YM. Propiedades estructurales de ejes huecos y sólidos con una grieta plana//Structural proprieties of hollow and whole axles, with a flat crack. Ing. Mec. [Internet]. 2014 May 1 [cited 2025 Sep. 13];17(2):168-75. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/489

Issue

Vol. 17 No. 2 (2014): mayo-agosto

Section

Original article

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