ParameterizedInterpolationExtrapolationTest

Tests parameterized interpolation with extrapolation on a mass-spring-damper system.

This component simulates a mass-spring-damper system where the applied force is obtained from time-series data using parameterized interpolation with constant extrapolation. The simulation runs beyond the data range (0 to 1) to verify that extrapolation correctly extends the boundary values for inputs outside the dataset range.

Usage

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

Parameters:

Name	Description	Units	Default value
input_file		–	"dyad://BlockComponents/data/interp_square_data.csv"
force_dataset		–	DyadData.DyadTimeseries(input_file, independent_var="ts", dependent_vars=["data"])
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

"""
Tests parameterized interpolation with extrapolation on a mass-spring-damper system.

This component simulates a mass-spring-damper system where the applied force is obtained from
time-series data using parameterized interpolation with constant extrapolation. The simulation
runs beyond the data range (0 to 1) to verify that extrapolation correctly extends the boundary
values for inputs outside the dataset range.
"""
component ParameterizedInterpolationExtrapolationTest
  # Create interpolation block with constant extrapolation
  force_interp = BlockComponents.ParameterizedInterpolation(interpolation_type = BlockComponents.InterpolationType.LinearInterpolation(), extrapolation_type = BlockComponents.ExtrapolationType.Constant(), dataset = force_dataset)
  # Parameters
  parameter m::Mass = 1.0
  parameter c::TranslationalSpringConstant = 10.0
  parameter d::TranslationalDampingConstant = 2.0
  # State variables
  variable x::Position # Position of mass
  variable v::Velocity # Velocity of mass
  # Load force vs time data from file (data range: 0 to 1)
  structural parameter input_file::String = "dyad://BlockComponents/data/interp_square_data.csv"
  structural parameter force_dataset::DyadData.DyadTimeseries = DyadData.DyadTimeseries(input_file, independent_var = "ts", dependent_vars = ["data"])
  variable F_applied::Force
relations
  initial x = 0.0
  initial v = 0.0
  F_applied = force_interp.y
  force_interp.u = time
  # Kinematics
  v = der(x)
  # Dynamics: m*a = F_applied - c*x - d*v
  # (spring force opposes displacement, damping opposes velocity)
  m * der(v) = F_applied - c * x - d * v
metadata {
  "Dyad": {
    "icons": {"default": "dyad://BlockComponents/Example.svg"},
    "tests": {"case1": {"stop": 1.5, "expect": {"signals": ["x"]}}},
    "doc": {"behavior": false}
  }
}
end

Flattened Source

"""
Tests parameterized interpolation with extrapolation on a mass-spring-damper system.

This component simulates a mass-spring-damper system where the applied force is obtained from
time-series data using parameterized interpolation with constant extrapolation. The simulation
runs beyond the data range (0 to 1) to verify that extrapolation correctly extends the boundary
values for inputs outside the dataset range.
"""
component ParameterizedInterpolationExtrapolationTest
  # Create interpolation block with constant extrapolation
  force_interp = BlockComponents.ParameterizedInterpolation(interpolation_type = BlockComponents.InterpolationType.LinearInterpolation(), extrapolation_type = BlockComponents.ExtrapolationType.Constant(), dataset = force_dataset)
  # Parameters
  parameter m::Mass = 1.0
  parameter c::TranslationalSpringConstant = 10.0
  parameter d::TranslationalDampingConstant = 2.0
  # State variables
  variable x::Position # Position of mass
  variable v::Velocity # Velocity of mass
  # Load force vs time data from file (data range: 0 to 1)
  structural parameter input_file::String = "dyad://BlockComponents/data/interp_square_data.csv"
  structural parameter force_dataset::DyadData.DyadTimeseries = DyadData.DyadTimeseries(input_file, independent_var = "ts", dependent_vars = ["data"])
  variable F_applied::Force
relations
  initial x = 0.0
  initial v = 0.0
  F_applied = force_interp.y
  force_interp.u = time
  # Kinematics
  v = der(x)
  # Dynamics: m*a = F_applied - c*x - d*v
  # (spring force opposes displacement, damping opposes velocity)
  m * der(v) = F_applied - c * x - d * v
metadata {
  "Dyad": {
    "icons": {"default": "dyad://BlockComponents/Example.svg"},
    "tests": {"case1": {"stop": 1.5, "expect": {"signals": ["x"]}}},
    "doc": {"behavior": false}
  }
}
end

Test Cases

Test Case case1

plt

Related

• Examples

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