SRad-Dyn – Dynamic simulation of bucket wheel drives
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Full title: |
SRad-Dyn – Dynamic simulation of bucket wheel drives |
| Duration: | Finished |
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Contributor: |
Dr.-Ing. Carsten Schulz |
| Financing: | AiF / FDBI |
| Objective: | Due to the harsh operating conditions of open cast mining equipment, the transmission of a bucket wheel excavator is subjected to considerable, time-variant loads. These dynamic loads induce forced vibrations in the drive system and therefore limit the service life of the mechanical parts. Since the gearbox is mounted on the boom of the bucket wheel excavator, the time-variant loads also cause alternating stress in the supporting structure of the device, which in turn results in material fatigue. |
| Approach: |
The research project pursues the goal of minimizing the alternating stress of the machine elements of the bucket wheel excavator by identifying the main influencing variables concerning the system dynamics. This shall be done by means of an active control concept of the electromechanical drive system, since a modification of the drive control can be implemented inexpensively and with little expenditure of time. The concept of holistic system analysis is applied to achieve the goal. |
| Results: |
The dynamic behaviour of the bucket wheel excavator is investigated via a far-sighted approach. In addition to a deeper understanding of the system, this offers the advantage that optimization measures may be tested on a sophisticated simulation model before being applied to the real system. The research results contribute to increasing the service life of the drive components as well as the supporting structure without reducing the device’s conveying capacity. |
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© IMM
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