RelativeAccelerationSensor

Ideal sensor to measure the acceleration of flange_b relative to flange_a

This component extends from PartialRelativeSensor

Usage

RelativeAccelerationSensor()

Connectors

• flange_a - (Flange)
• flange_b - (Flange)
• a_rel - This connector represents a real signal as an output from a component (RealOutput)

Variables

Behavior

\[ \begin{align} 0 &= \mathtt{flange\_b.f}\left( t \right) + \mathtt{flange\_a.f}\left( t \right) \\ \mathtt{s\_rel}\left( t \right) &= \mathtt{flange\_b.s}\left( t \right) - \mathtt{flange\_a.s}\left( t \right) \\ \mathtt{v\_rel}\left( t \right) &= \frac{\mathrm{d} \mathtt{s\_rel}\left( t \right)}{\mathrm{d}t} \\ \mathtt{a\_rel}\left( t \right) &= \frac{\mathrm{d} \mathtt{v\_rel}\left( t \right)}{\mathrm{d}t} \\ 0 &= \mathtt{flange\_a.f}\left( t \right) \end{align} \]

Source

# Ideal sensor to measure the acceleration of `flange_b` relative to `flange_a`
component RelativeAccelerationSensor
  extends PartialRelativeSensor
  # Relative acceleration of `flange_b` relative to `flange_a` as output signal
  a_rel = RealOutput() [{
    "JuliaSim": {
      "placement": {"icon": {"x1": 450, "y1": 950, "x2": 550, "y2": 1050, "rot": 90}}
    }
  }]
  # Relative position of `flange_b` relative to `flange_a`
  variable s_rel::Distance
  # Relative velocity of `flange_b` relative to `flange_a`
  variable v_rel::Velocity
relations
  s_rel = flange_b.s-flange_a.s
  v_rel = der(s_rel)
  a_rel = der(v_rel)
  0 = flange_a.f
metadata {
  "JuliaSim": {"icons": {"default": "jsml://TranslationalComponents/RelativeSensor.svg"}}
}
end

# Ideal sensor to measure the acceleration of `flange_b` relative to `flange_a`
component RelativeAccelerationSensor
  flange_a = Flange() [{
    "JuliaSim": {"placement": {"icon": {"x1": -50, "y1": 450, "x2": 50, "y2": 550}}}
  }]
  flange_b = Flange() [{
    "JuliaSim": {"placement": {"icon": {"x1": 950, "y1": 450, "x2": 1050, "y2": 550}}}
  }]
  # Relative acceleration of `flange_b` relative to `flange_a` as output signal
  a_rel = RealOutput() [{
    "JuliaSim": {
      "placement": {"icon": {"x1": 450, "y1": 950, "x2": 550, "y2": 1050, "rot": 90}}
    }
  }]
  # Relative position of `flange_b` relative to `flange_a`
  variable s_rel::Distance
  # Relative velocity of `flange_b` relative to `flange_a`
  variable v_rel::Velocity
relations
  0 = flange_a.f+flange_b.f
  s_rel = flange_b.s-flange_a.s
  v_rel = der(s_rel)
  a_rel = der(v_rel)
  0 = flange_a.f
metadata {
  "JuliaSim": {"icons": {"default": "jsml://TranslationalComponents/RelativeSensor.svg"}}
}
end

Test Cases

Related

• Examples
• Experiments
• Analyses
• Tests
  • RelativeSensorsTest