Designing A Magnetic Clutch Using Autodesk Inventor

Braking system
By Ahmed Khebir | 25/04/2024

The Rise of Electromagnetic Clutches in Modern Automotive Design

In the fast-evolving landscape of automotive technology, precision control and adaptability are not just advantages; they are imperatives. As we shift towards more innovative control systems, electromagnetic clutches are emerging as a game-changer, especially in the realm of hybrid and electric vehicles.

 

Inventor Model of a Magnetic Clutch


Advantages of Magnetic Clutches

Magnetic clutches revolutionize automotive design with unmatched control and seamless operation. Enabling precise engagement and remote integration with control systems, they reduce wear by using non-contact torque transmission. Notably quick in response, they're also compact and adaptable—perfect for the sleek profiles of hybrid and electric vehicles. Their rapid, smooth engagement positions magnetic clutches as essential for the future of efficient and sustainable transportation.

 

An Inventor Cross Section View of a Magnetic Clutch


Design Challenges

Designing electromagnetic clutches presents intricate challenges, balancing magnetic force and gap distance to ensure efficient clutch plate engagement. Optimal air gap maintenance is crucial for smooth operation and wear reduction, while managing temperature distribution from the Joule effect is vital to prevent overheating that can compromise reliability and lifespan. Achieving harmony between these elements, alongside the clutch's reliability, efficiency, and size, requires detailed optimization and thorough analysis in the design process.

The Only Inventor Electromagnetic Plugin

EMWORKS, the sole electromagnetic plugin for Autodesk Inventor, is pivotal for innovating magnetic clutch design in the automotive and aerospace sectors. This comprehensive simulation tool allows engineers to optimize the performance of magnetic clutches, along with other power electronics, motors, and high-voltage systems. It streamlines complex workflows, enabling the detailed analysis of electromagnetic behavior essential for enhancing clutch efficiency and operation. With EMWORKS’s customizable simulation parameters, designers can explore diverse scenarios, ensuring that every magnetic clutch meets rigorous performance and reliability standards in demanding environments.

 

EMWORKS Inside Inventor



Electromagnetic Analysis: A Peek into Performance Metrics

Key features within EMWORKS, such as multi-configurations and the parametric study option, significantly enhance the scope and depth of performance analysis for magnetic clutches. These tools enable engineers to conduct comprehensive evaluations of various aspects, including current levels, forces, magnetic flux densities, and temperature variations. By leveraging these capabilities, users can meticulously adjust and refine parameters to precisely understand how changes impact the overall performance of the magnetic clutch. This detailed analysis not only aids in optimizing the clutch design but also ensures that the solutions are robust and efficient, tailored to meet specific operational demands.  Below are some of such results obtained by EMWORKS.

 


EMWORKS Interface to Define the Parameters Linked to the Multi-Configurations



 


3D Plot of the Magnetic Flux to Identify the High Field Regions.





Force (N) Vs Air Gap (mm)


Different Time Response at a Different Applied Voltage.



 

3D Plot of the Temperature Distribution at 12V Maximum of 68.7 deg C

 

3D Plot of the Temperature Distribution at 9V Maximum of 45.49 deg C


As we conclude, EMWORKS stands out as an essential resource for the design and optimization of magnetic clutches, offering a comprehensive electromagnetic and electro-thermal simulation within Autodesk Inventor. Its seamless integration allows for precise geometry adjustments without cumbersome software transitions, ensuring design integrity. EMWORKS' intuitive interface enables swift generation of plots and extraction of post-processing parameters, essential for the meticulous calibration of magnetic clutch mechanisms. Engineers can leverage the parametric study feature to fine-tune both geometric and simulation parameters, enhancing clutch performance and reliability. The expansive material library further enriches the design process, providing a spectrum of industry-standard and customizable materials. Ultimately, EMWORKS equips Autodesk Inventor to become the quintessential platform for crafting magnetic clutches and a range of electro-mechanical devices with unparalleled precision and efficiency.