接入test_mql变容气室机械反馈

tests/test_amesim_pneumatic_components.py

@@ -91,6 +91,27 @@ class AmesimPneumaticComponentsTest(unittest.TestCase):
         volume.set_external_volume_m3(cm3_to_m3(34242.54636512914))
         self.assertAlmostEqual(volume.volume_cm3(), 49242.54636512914)
 
+    def test_variable_volume_boundary_work_uses_external_volume_rate(self) -> None:
+        volume = AmesimVariablePneumaticVolume.from_liters(
+            name="pn_c1_8",
+            dead_volume_liters=15.0,
+            p0=100000.0,
+            T0=293.15,
+        )
+        props = volume.properties()
+        volume.set_external_volume_m3(0.0, external_volume_rate_m3_s=2.0e-6)
+
+        derivative = volume.derivatives_from_two_connections(
+            port_a_m_flow=0.0,
+            connected_h_a=props.h,
+            port_b_m_flow=0.0,
+            connected_h_b=props.h,
+            internal_h=props.h,
+        )
+
+        self.assertAlmostEqual(derivative.m, 0.0)
+        self.assertAlmostEqual(derivative.U, -props.p * 2.0e-6)
+
     def test_orifice_returns_signed_mass_flow(self) -> None:
         orifice = AmesimPneumaticOrifice.from_mm2(
             name="pn_orifice_18",

tests/test_test_mql_pnl0001_segment.py

@@ -566,6 +566,43 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase):
         )
         self.assertAlmostEqual(rhs[112], -0.8167936695810917)
 
+    def test_full_state_closure_feeds_piston_kinematics_to_variable_chambers(self) -> None:
+        closure = self.system.full_state_closure_from_spec(
+            self.spec,
+            inlet_node_pressure_pa=15.31e6,
+            resistance_boundary_pressure_pa=15.29e6,
+        )
+        state = closure.initial_state_vector()
+        state[113] = 0.05
+
+        snapshot = closure.snapshot(state)
+        chamber = closure.pneumatic_closure.components.p4_port3_remote_primary_chamber
+        piston = closure.mechanical_closure.assembly.pistons["pn_brp2_8"]
+        expected_external_volume = piston.geometry().chamber_volume_m3(0.0, 0.05)
+
+        self.assertAlmostEqual(
+            chamber.volume,
+            chamber.dead_volume + expected_external_volume,
+        )
+        self.assertLess(
+            snapshot.pneumatic.p4_port3_remote_primary_chamber.p,
+            self.system.pneumatic_assembly.variable_initial_absolute_pressure_pa,
+        )
+
+        base_rhs = closure.rhs(closure.initial_state_vector())
+        moving_state = closure.initial_state_vector()
+        moving_state[112] = 0.1
+        moving_snapshot = closure.snapshot(moving_state)
+        rhs = closure.rhs(moving_state)
+        expected_volume_rate = piston.geometry().chamber_volume_rate_m3_s(0.0, 0.1)
+
+        self.assertAlmostEqual(chamber.volume_rate_m3_s(), expected_volume_rate)
+        self.assertAlmostEqual(
+            rhs[47] - base_rhs[47],
+            -moving_snapshot.pneumatic.p4_port3_remote_primary_chamber.p
+            * expected_volume_rate,
+        )
+
     def test_full_state_closure_applies_elastic_endstop_force_to_small_masses(self) -> None:
         closure = self.system.full_state_closure_from_spec(
             self.spec,
@@ -577,7 +614,6 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase):
 
         snapshot = closure.snapshot(state)
         rhs = closure.rhs(state)
-        initial_rhs = closure.rhs(closure.initial_state_vector())
         endstop = closure.mechanical_closure.assembly.elastic_endstops[
             "elasticendstop_8"
         ].endstop()
@@ -585,10 +621,13 @@ class TestMqlPn3P4NodeChamberSegmentTests(unittest.TestCase):
         mass = closure.mechanical_closure.assembly.masses[
             "mass_friction_endstops_10"
         ].mass_kg
+        expected_piston_force = closure._piston_force_by_mass_alias(
+            snapshot.pneumatic
+        )["mass_friction_endstops_10"]
 
         self.assertAlmostEqual(
             rhs[112],
-            initial_rhs[112] - expected_contact_force / mass,
+            (expected_piston_force - expected_contact_force) / mass,
         )
         self.assertAlmostEqual(
             snapshot.mechanical_node_total_force_by_alias[