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Wave processes in column rods of a rocker machine

  • Reliability, Durability, and Wearing Resistance of Machines and Constructions
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Abstract

The propagation of stress waves in a column of rods of a rocker machine during a lift is considered at an arbitrary time instant. Using an integral transformation of time, the second-degree differential equation for displacement is solved where the force of the column dead weight is taken into account. It is shown that the stress variation is of a pulsating type; parameters and a form of the pulsation cycle are given. The fatigue strength of a thread in the union joint of rods and the lifetime of rods having an initial fracture are determined.

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Authors
  1. R. G. Yakupov
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Additional information

Original Russian Text © R.G. Yakupov, 2009, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2009, No. 1, pp. 47–52.

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Yakupov, R.G. Wave processes in column rods of a rocker machine. J. Mach. Manuf. Reliab. 38, 38–43 (2009). https://doi.org/10.3103/S1052618809010087

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  • DOI: https://doi.org/10.3103/S1052618809010087

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