Thermal steady-state

This example demonstrates internal scripting thermal steady-state functionality

Perform required imports

import ansys.motorcad.core as pymotorcad

Launch Motor-CAD

mc = pymotorcad.MotorCAD()

We will update the resistance between nodes with the following equation: resistance = (0.01 × ambient_temp) + 1 This function is called when “Run” is pressed

def main():
    pass


class thermal_steady:
    # Select nodes to update
    housing_node = 1
    ambient_node = 0

    def initial(self):
        # %%
        # Disable pop-up messages
        mc.set_variable("MessageDisplayState", 2)

        # Adjust Losses
        mc.display_screen("Scripting")
        mc.set_variable("Armature_Copper_Loss_@Ref_Speed", 200)

    def main(self):
        ambient_temp = mc.get_variable("T_Ambient")
        resistance = (ambient_temp * 0.01) + 1
        mc.set_resistance_value(
            "Custom Resistance", self.ambient_node, self.housing_node, resistance, ""
        )
        print(str(resistance))

    def final(self):
        # Get temperature from node
        housing_temp = mc.get_node_temperature(self.housing_node)
        print("Housing Temperature: " + str(round(housing_temp, 1)))

        mc.set_variable("MessageDisplayState", 0)

PyMotorCAD Documentation Example

(Used for the PyMotorCAD Documentation Examples only)

try:
    from setup_scripts.setup_script import run_thermal_steady_demo
except ImportError:
    pass
else:
    run_thermal_steady_demo(mc)

Armature copper loss = 200
11:34:37 AM : Python script output: 1.4
11:34:37 AM : Steady State calculation completed after 7 iterations
11:34:38 AM : Python script output: Housing Temperature: 105.3