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This spreadsheet is used to display the flight segment calculated tensions, drag and mass.

For all calculations, the following is displayed

•The Length and Lift are the same as those explained in the Flight Input Tab.

•The Label is the description input in the Flight Input Tab.

•The Run, Accel and Decel tensions represent the belt tension values at the indicated point (the beginning of their respective flights).

•The Min Sag Tension is the lowest acceptable tension level allowed per the limits selected in the takeup section.

•The Misc Drag includes drag to accelerate material, skirtboard friction, plow friction, pulley bearing drag and any miscellaneous drag input in the Flight Input Tab.

•The total Mass of all the moving components of each flight is displayed and any additional mass input in the Flight Input Tab.

•Speed Liftoff is the estimated belt speed at which the material will be launched into the air as it goes over the idler.

•Idler L10 life.

 

For the CEMA 5th Edition calculation method the following is displayed:

 

•The Kx value is the CEMA defined idler friction factor.

•The Ky value is the CEMA factor for calculating the force of belt and load flexure over the idlers.

 

For the CEMA 7th Edition calculation method the following is displayed:

•The Idler Drag value is the CEMA defined idler seal and bearing friction, and, if applicable, the garland idler alignment drag.

•The Idler Drag value is the CEMA defined idler alignment drag.

•The Belt Deform value is the CEMA factor for calculating the force of belt flexure over the idlers.

•The Material Trmplng value is the CEMA factor for calculating the force of material trampling over the idlers.

For the DIN/ISO calculation method the following is displayed:

•The f Factor Allocation value is the friction factor for calculating tension allocated to the individual belt segments.

 

See Also: Tension Graph, Liftoff