A Numerical Analysis of the Working Machine Tyre Inflation Process to Ensure Operator Safety

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Abstract
Tyre replacement and inflation is a common occurrence in the transportation, construction and mining industries, but in commercial, off-highway, or earth-moving vehicles, the rupture of an inflated tyre can cause serious or even fatal injuries to an operator. This paper highlights the consequences of a burst tyre based on a real case. The presented analytical approach is based upon an assumed adiabatic process and continuum mechanics using Bernoulli’s flow equations. A numerical analysis of a tyre burst was performed using multibody and finite element methods to reconstruct the fatal accident. It was shown that tyre-blast injuries may lead to lethal head trauma and bodily injuries, since the potential energy stored in large, over-pressured tyres can exceed 1 MJ.
Funding Information
  • Narodowe Centrum Badań i Rozwoju (LIDER/8/0051/L-8/16/NCBR/2017)
  • Ministerstwo Edukacji i Nauki (Grant 1/S/IESO/17)
  • Wrocław University of Science and Technology (Work 74/2011)

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