LIBRARY

Inertia

1D-rotational component with inertia.

This component extends from PartialTwoSplines

Usage

Inertia(J)

Parameters:

Name	Description	Units	Default value
J	Moment of inertia	kg.m2

Connectors

• spline_a - (Spline)

• spline_b - (Spline)

Variables

Name	Description	Units
phi	Absolute rotation angle	rad
w	Absolute angular velocity	rad/s
a	Absolute angular acceleration	rad/s2

Behavior

Source

# 1D-rotational component with inertia.
component Inertia
  extends PartialTwoSplines
  # Moment of inertia
  parameter J::MomentOfInertia
  # Absolute rotation angle
  variable phi::Angle
  # Absolute angular velocity
  variable w::AngularVelocity
  # Absolute angular acceleration
  variable a::AngularAcceleration
relations
  phi = spline_a.phi
  phi = spline_b.phi
  D(phi) = w
  D(w) = a
  J*a = spline_a.tau+spline_b.tau
metadata {"JuliaSim": {"icons": {"default": "jsml://RotationalComponents/Inertia.svg"}}}
end

Flattened Source

# 1D-rotational component with inertia.
component Inertia
  spline_a = Spline() [{
    "JuliaSim": {"placement": {"icon": {"x1": -50, "y1": 450, "x2": 50, "y2": 550}}}
  }]
  spline_b = Spline() [{
    "JuliaSim": {"placement": {"icon": {"x1": 950, "y1": 450, "x2": 1050, "y2": 550}}}
  }]
  # Moment of inertia
  parameter J::MomentOfInertia
  # Absolute rotation angle
  variable phi::Angle
  # Absolute angular velocity
  variable w::AngularVelocity
  # Absolute angular acceleration
  variable a::AngularAcceleration
relations
  phi = spline_a.phi
  phi = spline_b.phi
  D(phi) = w
  D(w) = a
  J*a = spline_a.tau+spline_b.tau
metadata {"JuliaSim": {"icons": {"default": "jsml://RotationalComponents/Inertia.svg"}}}
end

Test Cases

Related

• Examples

• Experiments

• Analyses

• Tests

  • TwoInertiasWithDrivingTorque