rolland.components.DiscrPad

class rolland.components.DiscrPad(*args, **kwargs)[source]

Bases: HasTraits

Discrete Pad Class.

Contains the properties of a discrete pad.

Parameters:

  • args (t.Any)

  • kwargs (t.Any)

sp

Vertical/lateral pad stiffness (total value) \([N/m]\). Lateral value can be set to zero when lateral rail deflections are omitted.

Type:

list of float

wdthp

Pad width in x-direction \([m]\).

Type:

float

etap

Pad loss factor \([-]\).

Type:

float

fresp

Vertical/lateral pad resonance frequencies [Hz]. This frequency is needed for calculating the viscous damping coefficient if it is not provided. Lateral value can be set to zero when lateral rail deflections are omitted.

Type:

list of float

dp

Vertical/lateral pad damping coefficient (viscous) \([Ns/m]\). Lateral value can be set to zero when lateral rail deflections are omitted.

Type:

list of float