ParameterizedInterpolationTest

Usage

BlockComponents.ParameterizedInterpolationTest(m=1.0, c=10.0, d=2.0)

Parameters:

Name	Description	Units	Default value
input_file		–	"dyad://BlockComponents/data/force_time.csv"
force_dataset		–	DyadData.DyadTimeseries(input_file, independent_var="timestamp", dependent_vars=["force"])
m		kg	1
c		N/m	10
d		N.s/m	2

Variables

Name	Description	Units
x		m
v		m/s
F_applied		N

Behavior

Behavior of this component cannot be rendered because it includes path variables.

Source

component ParameterizedInterpolationTest
  force_interp = BlockComponents.ParameterizedInterpolation(interpolation_type = BlockComponents.InterpolationType.LinearInterpolation(), dataset = force_dataset)
  parameter m::Mass = 1.0
  parameter c::TranslationalSpringConstant = 10.0
  parameter d::TranslationalDampingConstant = 2.0
  variable x::Position
  variable v::Velocity
  structural parameter input_file::String = "dyad://BlockComponents/data/force_time.csv"
  structural parameter force_dataset::DyadData.DyadTimeseries = DyadData.DyadTimeseries(input_file, independent_var = "timestamp", dependent_vars = ["force"])
  variable F_applied::Force
relations
  initial x = 0.0
  initial v = 0.0
  F_applied = force_interp.y
  force_interp.u = time
  v = der(x)
  m * der(v) = F_applied - c * x - d * v
metadata {
  "Dyad": {
    "icons": {"default": "dyad://BlockComponents/Example.svg"},
    "tests": {"case1": {"stop": 0.1, "expect": {"signals": ["x"]}}},
    "doc": {"behavior": false}
  }
}
end

Flattened Source

component ParameterizedInterpolationTest
  force_interp = BlockComponents.ParameterizedInterpolation(interpolation_type = BlockComponents.InterpolationType.LinearInterpolation(), dataset = force_dataset)
  parameter m::Mass = 1.0
  parameter c::TranslationalSpringConstant = 10.0
  parameter d::TranslationalDampingConstant = 2.0
  variable x::Position
  variable v::Velocity
  structural parameter input_file::String = "dyad://BlockComponents/data/force_time.csv"
  structural parameter force_dataset::DyadData.DyadTimeseries = DyadData.DyadTimeseries(input_file, independent_var = "timestamp", dependent_vars = ["force"])
  variable F_applied::Force
relations
  initial x = 0.0
  initial v = 0.0
  F_applied = force_interp.y
  force_interp.u = time
  v = der(x)
  m * der(v) = F_applied - c * x - d * v
metadata {
  "Dyad": {
    "icons": {"default": "dyad://BlockComponents/Example.svg"},
    "tests": {"case1": {"stop": 0.1, "expect": {"signals": ["x"]}}},
    "doc": {"behavior": false}
  }
}
end

Test Cases

using BlockComponents
using DyadInterface: TransientAnalysis, rebuild_sol
using ModelingToolkit: toggle_namespacing, get_defaults, @named
using CSV, DataFrames, Plots

snapshotsdir = joinpath(dirname(dirname(pathof(BlockComponents))), "test", "snapshots")

<< @setup-block not executed in draft mode >>

Test Case case1

@named model_case1 = ParameterizedInterpolationTest()
model_case1 = toggle_namespacing(model_case1, false)

model_case1 = toggle_namespacing(model_case1, true)
result_case1 = TransientAnalysis(; model = model_case1, alg = "auto", start = 0e+0, stop = 1e-1, abstol=1e-6, reltol=1e-6)
sol_case1 = rebuild_sol(result_case1)

<< @setup-block not executed in draft mode >>

df_case1 = DataFrame(:t => sol_case1[:t], :actual => sol_case1[model_case1.x])
dfr_case1 = try CSV.read(joinpath(snapshotsdir, "ParameterizedInterpolationTest_case1_sig0.ref"), DataFrame); catch e; nothing; end
plt = plot(sol_case1, idxs=[model_case1.x], width=2, label="Actual value of x")
if !isnothing(dfr_case1)
  scatter!(plt, dfr_case1.t, dfr_case1.expected, mc=:red, ms=3, label="Expected value of x")
end

<< @setup-block not executed in draft mode >>

plt

<< @example-block not executed in draft mode >>

Related

• Examples

• Experiments

• Analyses