W.R. Kuntz
Computermodel van een scraper. Rekenprogramma onder Windows.
Computer program,
Report 93.3.TT.4239, Transport Engineering and Logistics.
There is still little knowledge of the excavation process of a scraper. In
this report, the excavation process of a frontscraper has been modelled. On
the basis of this model a computer program has been written that calculates
the forces that work on the scraper and the power that is needed to drive the
scraper.
This computer program enales a designer to experiment with the model to
achieve insight in the influence of important design parameters.
From experiments with the program follows:
- The forces that work on the chain and the power that is needed to drive
the chain depend on the velocity of the chain (negative exponential).
- The forces that work on the chain and the power that is needed to drive
the chain increase when the width/height-ratio of the scraper blades
increases.
- The influence of adhesion and, to a lesser degree, of cohesion increase
when the width/height-ratio of the scraper blades increases.
- A scraper has a low energy consumption.
Reports on Transport Engineering and Logistics (in Dutch)
Modified: 2008.01.19;
logistics@3mE.tudelft.nl
, TU Delft
/ 3mE
/ TT
/ LT.