公开PNRP17并接通实时气动机械耦合

app/simulation/core/base.py

@@ -204,6 +204,16 @@ class Component(ABC):
 
         return None
 
+    def pneumatic_volume_outputs(self) -> Mapping[str, tuple[float, float]]:
+        """Return directed ``volume``/``volume_flow`` values by pneumatic port.
+
+        Most pneumatic components contribute no external chamber volume. Moving
+        boundaries such as PNRP17 override this hook; the network resolver then
+        propagates the pair to the component connected at the same physical port.
+        """
+
+        return {}
+
 
 class DynamicComponent(Component):
     state_size = 2

app/simulation/core/ports.py

@@ -87,6 +87,26 @@ class PortDefinition:
                     unit="J/kg",
                     order=30,
                 ),
+                PortVariableDefinition(
+                    "volume",
+                    "signal",
+                    "directed",
+                    label="外部容积",
+                    quantity="volume",
+                    unit="m3",
+                    result_visible=False,
+                    order=40,
+                ),
+                PortVariableDefinition(
+                    "volume_flow",
+                    "signal",
+                    "directed",
+                    label="外部容积变化率",
+                    quantity="volume_flow",
+                    unit="m3/s",
+                    result_visible=False,
+                    order=50,
+                ),
             ),
         )
 
@@ -178,6 +198,8 @@ class PortState:
     p: float = 0.0
     m_flow: float = 0.0
     h_outflow: float = 0.0
+    volume: float = 0.0
+    volume_flow: float = 0.0
     signal: float = 0.0
     x: float = 0.0
     v: float = 0.0