<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The paper deals with the analysis of the dynamic response over time of the excavator boom during operation. For a start, we determined the variation in time of the forces acting on the rotor shaft, due to the excavation. These forces have high values and a slow variation over time, which depends on the rotation speed of the bucket wheel and the number of buckets installed on it. A virtual model of the BWE boom was proposed, for which the dynamic response in time due to the excavation forces was determined, for a point in the main cabin of the BWE. A virtual sensor has been attached to this point corresponding to seat of the operator. The simulation of the dynamic response over time was performed taking into account a global damping of 2% of the critical damping. The simulation was performed both for the excavation of a homogeneous material and for the case of a shock (a sudden appearance of an inclusion of hard material during the cutting of the homogeneous material).</p>
</abstract>

The paper deals with the analysis of the dynamic response over time of the excavator boom during operation. For a start, we determined the variation in time of the forces acting on the rotor shaft, due to the excavation. These forces have high values and a slow variation over time, which depends on the rotation speed of the bucket wheel and the number of buckets installed on it. A virtual model of the BWE boom was proposed, for which the dynamic response in time due to the excavation forces was determined, for a point in the main cabin of the BWE. A virtual sensor has been attached to this point corresponding to seat of the operator. The simulation of the dynamic response over time was performed taking into account a global damping of 2% of the critical damping. The simulation was performed both for the excavation of a homogeneous material and for the case of a shock (a sudden appearance of an inclusion of hard material during the cutting of the homogeneous material).

Simulation of the Vibrations Produced to the Human Body During Operation of the Bucket Wheel Excavators. A Case Study of ERc 1400-30/7 Type Excavator

Mining Revue

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

The paper deals with the analysis of the dynamic response over time of the excavator boom during operation. For a start, we determined the variation in time of...

Simulation of the Vibrations Produced to the Human Body During Operation of the Bucket Wheel Excavators. A Case Study of ERc 1400-30/7 Type Excavator

Publié en ligne: 01 janv. 2022

Pages: 33 - 49

DOI: https://doi.org/10.2478/minrv-2021-0033

Mots clés
bucket wheel excavator (BWE), dynamic time response, global damping, sensor, excavator operator

© 2021 Samir Mezani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Simulation of the Vibrations Produced to the Human Body During Operation of the Bucket Wheel Excavators. A Case Study of ERc 1400-30/7 Type Excavator

Publié en ligne: 01 janv. 2022

Pages: 33 - 49

DOI: https://doi.org/10.2478/minrv-2021-0033

Mots clésbucket wheel excavator (BWE), dynamic time response, global damping, sensor, excavator operator

© 2021 Samir Mezani et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Mots clés
bucket wheel excavator (BWE), dynamic time response, global damping, sensor, excavator operator