Ansys MotorCAD Thermal Overview
Hello everyone, David Giglio here with Ozen Engineering, Inc.. In this video, I will show you how to use Ansys MotorCAD to apply cooling systems to your motor to prevent overheating. This involves implementing thermal management and heat regulation to ensure that the heat generated is equal to the heat being transferred.
Modes of Heat Transfer
There are different modes of heat transfer:
- Conductive
- Convective
- Radiated
MotorCAD allows you to apply various cooling systems. Let's take a look.
Cooling Systems
Here are the cooling systems you can choose from:
- Housing Water Jacket
- Spray Cooling
In this example, we're using a housing water jacket and spray cooling. Let's examine the geometry:
- Radial View: The blue object shown here is the jacket.
- Axial View: Displays the geometry of the cooling system.
We can see that there are water channels where fluid flows through, carrying heat away. Additionally, spray cooling is applied to the end windings of the motor, effectively cooling it.
Calculations
We can now apply calculations:
- Steady-State Calculation: Runs in a few seconds and automatically generates a thermal circuit. MotorCAD uses a lumped parameter thermal network, breaking the model into lumped parameters for the objects and applying temperature nodes. This includes thermal resistances, thermal capacitances, heat sources, etc.
- Transient Calculation: Generates the temperature rise of each motor object over time. You can see how the temperature changes for each motor object.
When running a transient calculation, you can select a duty cycle in the lab model. The chosen duty cycle will appear in the thermal model, aligning the temperature to specific values. You can isolate maximum temperature values to determine the required state and phase advance.
Operating Point and E-Magnetic Model
Once the calculation is complete, the operating point can be passed to the e-magnetic model. This integration allows the e-magnetic model to utilize the operating point for further analysis.
Additional Information
There are various settings to explore, which are not covered in this video. For more details, I recommend checking the blog associated with this video. It provides a quick overview of the thermal model and allows you to apply different settings and review various results.
Contact Us
Contact us to learn more about our simulation capabilities and request a demonstration. We can assist you with your engineering projects. Ozen Engineering, Inc. is an Ansys Elite channel partner, providing training on Ansys tools, consulting services, and selling Ansys software packages.
Thank you very much and take care.
Hello everyone, David Giglio here with Ozen Engineering. In this video, I will show you how to use Ansys MotorCAD to apply cooling systems to cool your motor, so it does not overheat, and you can apply thermal management and heat regulation, so heat generated is equal to the heat being transferred.
There are different modes of heat transfer: conductive, convective, and radiated. MotorCAD allows you to apply various cooling systems. Let's take a look. Here we have these cooling systems to choose from. In this example, we're choosing housing, water jacket, and spray cool.
We look at the geometry, both radial and axial views, and see the jacket. We'll get the geometry in both views. The main idea is the cooling system. We can go into the headlight and see that there are water channels where fluid is being flowed through and carrying heat.
Also, spray cooling is applied, so fluid is being applied to the end windings of the winding, cooling the motor. We can now apply calculations. We could run a steady-state calculation in a few seconds, and a thermal circuit will automatically be generated for us.
MotorCAD uses a lumped parameter network thermal network, where the model is broken down into lumped parameters for the objects, and temperature nodes are applied. The various elements include thermal resistances, thermal capacitances, heat sources, etc. This represents the motor.
We can also run a transient calculation, which will generate the temperature rise of each motor object over time. We can see how the temperature is rising for motor objects. When we click this transient calculation type, we have a duty cycle tab.
We can click this and choose a duty cycle in the lab model. We can choose what duty cycles we want to apply. Based on the temperature and speed, we can choose the operating point, including region of time and phase advance.
The thermal model gives us a significant maximum temperature, which we can use for the magnetic model. Once we run this calculation and have an operating point, we can pass it to the magnetic model. The magnetic model will have this operating point. There are various settings to go through.
I'm not covering everything in this video. For more details, I recommend looking at the blog associated with this video. I wanted to show a quick overview of the thermal model, and you can apply different settings and look at different results. Look at the blog and apply what is shown there.
That is all for this video. Contact us to learn about our simulation capability and request a demonstration for us to show you how we can help you with your engineering projects. Ozen Engineering Inc.
is an Ansys Elite channel partner and provides training to use Ansys tools, offers consulting services, and sells Ansys software packages. Thank you very much, and take care. (The title of the talk is "AnsysMotorCAD Thermal.")
