优化求解器重试并校正AMESim机械端口

tests/test_amesim_mechanical_xml.py

@@ -146,9 +146,9 @@ def signal_force_mass_project() -> ReactFlowProjectPayload:
 
 def elastic_contact_project() -> ReactFlowProjectPayload:
     left_parameters = dict(MECMAS21_DEFAULTS)
-    left_parameters["x0"] = 0.0
+    left_parameters["x0"] = 0.001
     right_parameters = dict(MECMAS21_DEFAULTS)
-    right_parameters["x0"] = 0.001
+    right_parameters["x0"] = 0.0
     return ReactFlowProjectPayload(
         name="amesim-mechanical-elastic-contact-smoke",
         nodes=[
@@ -260,10 +260,10 @@ class AmesimMechanicalXmlTests(unittest.TestCase):
         self.assertTrue(result["success"], result["message"])
         self.assertEqual(result["series"]["time"], [0.0, 0.01, 0.02])
         self.assertAlmostEqual(result["series"]["contact_1.force"][0], 1.0)
-        self.assertAlmostEqual(result["series"]["mass_left.a"][0], 0.5)
-        self.assertAlmostEqual(result["series"]["mass_right.a"][0], -0.5)
-        self.assertGreater(result["series"]["mass_left.x"][-1], 0.0)
-        self.assertLess(result["series"]["mass_right.x"][-1], 0.001)
+        self.assertAlmostEqual(result["series"]["mass_left.a"][0], -0.5)
+        self.assertAlmostEqual(result["series"]["mass_right.a"][0], 0.5)
+        self.assertLess(result["series"]["mass_left.x"][-1], 0.001)
+        self.assertGreater(result["series"]["mass_right.x"][-1], 0.0)
 
     def test_zero_force_mechanical_project_compiles_and_simulates(self) -> None:
         xml = build_reactflow_system_xml(zero_force_mass_project())