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Parameter
|
Type
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Description
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|---|---|---|
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Base Failure Rate
|
Real (Failures/Million Hours) Used in Lambda b calculation.
|
The base or manufacturer-supplied failure rate. Generally, this field is left at #.# so that the failure rate is calculated based on the values entered for other parameters. If you enter a value for this parameter, this value is used in place of a calculated failure rate.
|
|
Applications/Mile
|
Real. Used in Lambda b calculation.
|
The number of brake/clutch applications per mile.
|
|
Lining Thickness
|
Real (in). Used in Lambda b calculation.
|
The friction lining thickness in inches.
|
|
Lining Area
|
Real (sq in). Used in Lambda b calculation.
|
The friction lining area in square inches.
|
|
Lining Type
|
Choice List. Used in Ct calculation.
|
The type of lining. Choices vary based on subcategory.
|
|
Brake Type
|
Choice List. Used in Cbt calculation.
|
Required only for the for Brake Friction Lining subcategory.
The type of brake. Choices include:
• Drum
• Slotted Annular Disk
• Annular Disk
• Pad
|
|
Binder Resin
|
Choice List. Used in Crd calculation.
|
Required only for the for Brake Friction Lining subcategory.
The type of binder resin. Choices include Phenolic, Oil-modified Phenolic, and more.
|
|
Specific Wear Rate
|
Real (in^3/ft-lbf). Used in Lambda b calculation.
|
Required only for the for Brake Friction Lining subcategory.
The specific wear rate of the friction material in in^3/ft-lbf units.
|
|
Vehicle Weight
|
Real (lbf). Used in Lambda b calculation.
|
Required only for the for Brake Friction Lining subcategory.
The weight of the vehicle in pounds.
|
|
Average Velocity Change
|
Real (ft/s). Used in Lambda b calculation.
|
Required only for the for Brake Friction Lining subcategory.
The average change in velocity per brake action in feet/second.
|
|
Miles/Year
|
Real. Used in Lambda b calculation.
|
Required only for the for Brake Friction Lining subcategory.
The number of miles traveled per year.
|
|
Braking Load
|
Real. Used in Lambda b calculation.
|
Required only for the for Brake Friction Lining subcategory.
Proportion of weight carried by lining during braking action. For a four-wheel drive vehicle, each front brake typically carries 3/10 of the braking load.
|
|
Surface Roughness
|
Real (microinches). Used in Csr calculation.
|
Required only for the for Brake Friction Lining subcategory.
The surface roughness of the countersurface in micro inches.
|
|
Energy Dissipated
|
Real (ft-lbf). Used in lambda b calculation
|
Required only for the Clutch Friction Lining subcategory.
The average energy dissipated per application in ft-lbf.
|
|
Average Wear Value
|
Real (h.p.-hr/in^3). Used in lambda b calculation.
|
Required only for the Clutch Friction Lining subcategory.
The average wear value of the material in (h.p.-hr/in^3).
|
|
Number of Discs
|
Integer. Used in Cnp calculation.
|
Required only for the Clutch Friction Lining subcategory.
The number of disks in the clutch.
|
|
[Derating Parameters]
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For more information, see Derating Parameters.
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