Stopper Icon

`Stopper`

This component extends from TranslationalComponents.PartialTwoFlanges

Parameters:

Name	Description	Units	Default value
`c`		N/m
`d`		s-1

Connectors

flange_a - (Flange)
flange_b - (Flange)

Variables

Name	Description	Units
`v_a`		m/s
`v_b`		m/s
`s_a`		m
`s_b`		m
`f`		N

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

Source

component Stopper
  extends TranslationalComponents.PartialTwoFlanges
  parameter c::TranslationalSpringConstant
  parameter d::DampingCoefficient
  variable v_a::Velocity
  variable v_b::Velocity
  variable s_a::JSML.Position
  variable s_b::JSML.Position
  variable f::Force
relations
  flange_a.s = s_a
  flange_b.s = s_b
  flange_a.f = f
  flange_b.f = -f
  D(s_a) = v_a
  D(s_b) = v_b
  f = if s_a>=s_b then (v_a-v_b)*d+c*(s_a-s_b) else 0
end

Flattened Source

component Stopper
  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}}}
  }]
  parameter c::TranslationalSpringConstant
  parameter d::DampingCoefficient
  variable v_a::Velocity
  variable v_b::Velocity
  variable s_a::JSML.Position
  variable s_b::JSML.Position
  variable f::Force
relations
  flange_a.s = s_a
  flange_b.s = s_b
  flange_a.f = f
  flange_b.f = -f
  D(s_a) = v_a
  D(s_b) = v_b
  f = if s_a>=s_b then (v_a-v_b)*d+c*(s_a-s_b) else 0
metadata {}
end

Test Cases

Examples
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