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Adaptation of the machine to the new geological conditions – excavation unit redesign and optimization

Andruszko Jakub, Moczko Przemyslaw, Pietrusiak Damian

Bulletin of the Polish Academy of Sciences. Technical Sciences

2021

Vol. 69, nr 3

art. no. e137122

The paper presents and sums up the research and technical aspects of the modernization of the cutting tool of the dredger. Improper adjustment of the cutting elements not adjusted to the characteristics of excavated material is not an uncommon situation, causing versatile geological conditions. Relocation of the machines from one pit to another may result in the significant influence on the excavation process (wear, output, etc.). Common practice is the field try and error approach to obtain desired machine performance. In the paper authors present the approach with aid of cutting-edge technologies. Coupled DEM and kinematic simulations supported by the reverse engineering technologies of laser scanning were the fundamental drivers for final adjustments of the cutting tool at its present operational conditions.

The Equations of Impulse and Momentum for the Rigid Body

Jankowski J.

Vibrations in Physical Systems

2004

Vol. 21

171--174

On the foundations of ordinary and generalized rigid body dynamics and the principle of objectivity

Chevallier D. P.

Archives of Mechanics

2004

Vol. 56, nr 4

313-353

This article presents the foundations of Newton-Euler rigid body dynamics and its generalized forms in the light of the objectivity principle. We prove that most of the features of dynamics may be directly deduced from this principle and from properties of the group defining the geometry. In particular, these deductions seem to close the conjectures about the relevance of the objectivity principle to dynamics.