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<< Click to Display Table of Contents >> Drag Calculation Methods |
  
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<< Click to Display Table of Contents >> Drag Calculation Methods |
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The calculation of drag forces acting on the belt conveyor will result in the estimated belt tensions, power requirements, brake requirements, takeup sizing, component selection, etc. Historically, different calculation methodologies have been utilized for the estimated drag between the idlers and belt. Several approaches are included with this program:
CEMA Standard 5th: The method described in the "Belt Conveyors for Bulk Materials, 5th edition" handbook published by the Conveyor Equipment Manufacturers Association (CEMA). It is also called the CEMA Standard Historical Method in the 6th edition.
CEMA Universal 6th: The method described in the "Belt Conveyors for Bulk Materials, 6th edition" handbook published by the Conveyor Equipment Manufacturers Association (CEMA). It is called the CEMA Universal Method in the 6th edition. This methodology is available for existing evaluations but it has generally been replaced by the more current techniques described in CEMA's 7th edition.
CEMA Universal 7th: The method described in the "Belt Conveyors for Bulk Materials, 7th edition" handbook published by the Conveyor Equipment Manufacturers Association (CEMA). It is called the CEMA Universal Method.
DIN 22101: 2011 The German standard for continuous conveyors, belt conveyors for loose bulk materials, basics for calculation and dimensioning.
Pipe: A proprietary evaluation of pipe conveyors includes standard methodologies for estimating drag with considerations of the extra forces encountered in horizontal and vertical curves and bending of the pipe belt in these curves.
The friction calculation method is selected in Belt Analyst™ on the "Conveyor" tab of the "Design Options" menu item. The method selected is then noted on selection tab and on the banner of the report printout.