Constants for Tribology

All of the below classes can be found in the constants module of the package.

Relevant constants for tribology research. Use, for example, as follows:

# get young's modulus of steel in units of MPa
import tribology as tr
youngs_modulus_steel = tr.YoungsMod.STEEL.value

class LubeDens

Scalar constants for lubricant density in \(\text{g ml}^{-1}\). Available values are:

class LubeVisc

Tuple containing kinematic viscosities (in unit of cSt) of lubricants at 40 and 100 \(^{\circ}\text{C}\). The first value in the tuple corresponds to the viscosity at 40 \(^{\circ}\text{C}\), the second to 100 \(^{\circ}\text{C}\). The TEMPS value contains the reference temperatures (40, 100). Available values are:

TEMPS:Tuple containing temperature values of 40 and 100

class MatDens

Scalar constants for material density in \(\text{kg m}^{-3}\). Available values are:

STEEL: GLASS:

class PoissonRatio

Scalar constants for unitless Poisson ratios. Available values are:

STEEL: GLASS: SiN:

class PressVisc

Pressure-viscosity coefficients in \(\text{Pa}^{-1}\) at room temperature. Available values are:

ESTER_OIL_GENERIC:   MINERAL_OIL_GENERIC:  

class RadBall

Scalar constants for ball radii in units of mm. Available values are:

TQInch:3/4 inch HInch:1/2 inch Inch:1 inch

class YoungsMod

Scalar constants for Young’s modulus in units of MPa. Available values are:

STEEL: GLASS: SiN: