LIBRARY
Sources.Tests.Position ​
Test of the Position source component with all ReferenceType enum variants.
Replicates the structure of ModelicaTest.Translational.AllComponents (Position portion) and ModelicaTest.Translational.TestFrictionPosition.
Three Position instances are driven by a common Sine reference (amplitude=1, frequency=1 Hz) and each drives a Mass (m=1 kg) with support grounded to Fixed:
pos_filtered: default Filtered mode (f_crit=50 Hz, af=1.3617, bf=0.6180)
pos_exact: Exact mode — flange position equals input directly
pos_filtered_low: Filtered mode with low critical frequency (f_crit=5 Hz) to show visible filtering
Usage ​
TranslationalComponents.Sources.Tests.Position()
Behavior ​
Source ​
dyad
"""
Test of the Position source component with all ReferenceType enum variants.
Replicates the structure of ModelicaTest.Translational.AllComponents (Position portion)
and ModelicaTest.Translational.TestFrictionPosition.
Three Position instances are driven by a common Sine reference (amplitude=1, frequency=1 Hz)
and each drives a Mass (m=1 kg) with support grounded to Fixed:
- pos_filtered: default Filtered mode (f_crit=50 Hz, af=1.3617, bf=0.6180)
- pos_exact: Exact mode — flange position equals input directly
- pos_filtered_low: Filtered mode with low critical frequency (f_crit=5 Hz) to show visible filtering
"""
test component Position
"Sine reference position signal (amplitude=1 m, frequency=1 Hz)"
sine = BlockComponents.Sources.Sine(amplitude = 1.0, frequency = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 30, "y1": 450, "x2": 130, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Position source — Filtered with default Bessel filter (f_crit=50 Hz)"
pos_filtered = TranslationalComponents.Sources.Position() {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 340, "y1": 640, "x2": 440, "y2": 740, "rot": 0}
},
"tags": []
}
}
"Mass driven by filtered position source"
mass_filtered = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 590, "y1": 640, "x2": 690, "y2": 740, "rot": 0}
},
"tags": []
}
}
"Position source — Exact (flange tracks input directly)"
pos_exact = TranslationalComponents.Sources.Position(ref_type = TranslationalComponents.Sources.ReferenceType.Exact()) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 330, "y1": 210, "x2": 430, "y2": 310, "rot": 0}
},
"tags": []
}
}
"Mass driven by exact position source"
mass_exact = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 590, "y1": 210, "x2": 690, "y2": 310, "rot": 0}
},
"tags": []
}
}
"Position source — Filtered with low critical frequency (f_crit=5 Hz)"
pos_filtered_low = TranslationalComponents.Sources.Position(ref_type = TranslationalComponents.Sources.ReferenceType.Filtered(f_crit = 5.0)) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 320, "y1": 450, "x2": 420, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Mass driven by low-f_crit filtered position source"
mass_filtered_low = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 600, "y1": 450, "x2": 700, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Fixed ground for all supports"
ground = TranslationalComponents.Components.Fixed() {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 890, "y1": 450, "x2": 990, "y2": 550, "rot": 270}
},
"tags": []
}
}
relations
# --- Filtered (default) ---
connect(sine.y, pos_filtered.s_ref) {
"Dyad": {
"edges": [{"S": 1, "M": [{"x": 140, "y": 500}, {"x": 140, "y": 690}], "E": 2}],
"renderStyle": "standard"
}
}
connect(pos_filtered.flange, mass_filtered.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
initial pos_filtered.v = 0
# --- Exact ---
connect(sine.y, pos_exact.s_ref) {
"Dyad": {
"edges": [{"S": 1, "M": [{"x": 140, "y": 500}, {"x": 140, "y": 260}], "E": 2}],
"renderStyle": "standard"
}
}
connect(pos_exact.flange, mass_exact.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
# --- Filtered low f_crit ---
connect(sine.y, pos_filtered_low.s_ref) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(pos_filtered_low.flange, mass_filtered_low.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
initial pos_filtered_low.v = 0
connect(pos_exact.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 380, "y": 400}, {"x": 850, "y": 400}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
connect(pos_filtered_low.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 370, "y": 600}, {"x": 850, "y": 600}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
connect(pos_filtered.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 390, "y": 830}, {"x": 850, "y": 830}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
metadata {
"Dyad": {
"icons": {"default": "dyad://TranslationalComponents/Example.svg"},
"tests": {
"case1": {
"stop": 1.1,
"atol": {
"mass_filtered.s": 0.001,
"mass_filtered.v": 0.01,
"mass_exact.s": 0.001,
"mass_exact.v": 0.01,
"mass_filtered_low.s": 0.01,
"mass_filtered_low.v": 0.1
},
"expect": {
"final": {
"mass_exact.s": 0.5877852522924736,
"mass_filtered.s": 0.565467313786633,
"mass_filtered.v": 5.1812448946651894,
"mass_filtered_low.s": 0.3442052973660629
},
"signals": [
"mass_filtered.s",
"mass_filtered.v",
"mass_exact.s",
"mass_exact.v",
"mass_filtered_low.s",
"mass_filtered_low.v"
]
}
}
}
}
}
endFlattened Source
dyad
"""
Test of the Position source component with all ReferenceType enum variants.
Replicates the structure of ModelicaTest.Translational.AllComponents (Position portion)
and ModelicaTest.Translational.TestFrictionPosition.
Three Position instances are driven by a common Sine reference (amplitude=1, frequency=1 Hz)
and each drives a Mass (m=1 kg) with support grounded to Fixed:
- pos_filtered: default Filtered mode (f_crit=50 Hz, af=1.3617, bf=0.6180)
- pos_exact: Exact mode — flange position equals input directly
- pos_filtered_low: Filtered mode with low critical frequency (f_crit=5 Hz) to show visible filtering
"""
test component Position
"Sine reference position signal (amplitude=1 m, frequency=1 Hz)"
sine = BlockComponents.Sources.Sine(amplitude = 1.0, frequency = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 30, "y1": 450, "x2": 130, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Position source — Filtered with default Bessel filter (f_crit=50 Hz)"
pos_filtered = TranslationalComponents.Sources.Position() {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 340, "y1": 640, "x2": 440, "y2": 740, "rot": 0}
},
"tags": []
}
}
"Mass driven by filtered position source"
mass_filtered = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 590, "y1": 640, "x2": 690, "y2": 740, "rot": 0}
},
"tags": []
}
}
"Position source — Exact (flange tracks input directly)"
pos_exact = TranslationalComponents.Sources.Position(ref_type = TranslationalComponents.Sources.ReferenceType.Exact()) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 330, "y1": 210, "x2": 430, "y2": 310, "rot": 0}
},
"tags": []
}
}
"Mass driven by exact position source"
mass_exact = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 590, "y1": 210, "x2": 690, "y2": 310, "rot": 0}
},
"tags": []
}
}
"Position source — Filtered with low critical frequency (f_crit=5 Hz)"
pos_filtered_low = TranslationalComponents.Sources.Position(ref_type = TranslationalComponents.Sources.ReferenceType.Filtered(f_crit = 5.0)) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 320, "y1": 450, "x2": 420, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Mass driven by low-f_crit filtered position source"
mass_filtered_low = TranslationalComponents.Components.Mass(m = 1.0) {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 600, "y1": 450, "x2": 700, "y2": 550, "rot": 0}
},
"tags": []
}
}
"Fixed ground for all supports"
ground = TranslationalComponents.Components.Fixed() {
"Dyad": {
"placement": {
"diagram": {"iconName": "default", "x1": 890, "y1": 450, "x2": 990, "y2": 550, "rot": 270}
},
"tags": []
}
}
relations
# --- Filtered (default) ---
connect(sine.y, pos_filtered.s_ref) {
"Dyad": {
"edges": [{"S": 1, "M": [{"x": 140, "y": 500}, {"x": 140, "y": 690}], "E": 2}],
"renderStyle": "standard"
}
}
connect(pos_filtered.flange, mass_filtered.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
initial pos_filtered.v = 0
# --- Exact ---
connect(sine.y, pos_exact.s_ref) {
"Dyad": {
"edges": [{"S": 1, "M": [{"x": 140, "y": 500}, {"x": 140, "y": 260}], "E": 2}],
"renderStyle": "standard"
}
}
connect(pos_exact.flange, mass_exact.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
# --- Filtered low f_crit ---
connect(sine.y, pos_filtered_low.s_ref) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
connect(pos_filtered_low.flange, mass_filtered_low.flange_a) {"Dyad": {"edges": [{"S": 1, "M": [], "E": 2}], "renderStyle": "standard"}}
initial pos_filtered_low.v = 0
connect(pos_exact.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 380, "y": 400}, {"x": 850, "y": 400}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
connect(pos_filtered_low.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 370, "y": 600}, {"x": 850, "y": 600}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
connect(pos_filtered.support, ground.flange) {
"Dyad": {
"edges": [
{
"S": 1,
"M": [{"x": 390, "y": 830}, {"x": 850, "y": 830}, {"x": 850, "y": 500}],
"E": 2
}
],
"renderStyle": "standard"
}
}
metadata {
"Dyad": {
"icons": {"default": "dyad://TranslationalComponents/Example.svg"},
"tests": {
"case1": {
"stop": 1.1,
"atol": {
"mass_filtered.s": 0.001,
"mass_filtered.v": 0.01,
"mass_exact.s": 0.001,
"mass_exact.v": 0.01,
"mass_filtered_low.s": 0.01,
"mass_filtered_low.v": 0.1
},
"expect": {
"final": {
"mass_exact.s": 0.5877852522924736,
"mass_filtered.s": 0.565467313786633,
"mass_filtered.v": 5.1812448946651894,
"mass_filtered_low.s": 0.3442052973660629
},
"signals": [
"mass_filtered.s",
"mass_filtered.v",
"mass_exact.s",
"mass_exact.v",
"mass_filtered_low.s",
"mass_filtered_low.v"
]
}
}
}
}
}
endTest Cases ​
Test Case case1 ​
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