Analytical Calculation/Optimization of Ironless Motor Structure

In summary, the conversation discussed the interest in calculating and optimizing the uniformity of a magnetic field generated by an array of neodymium magnets. The magnets have a constant depth and height, with multiple segments satisfying the depth requirement. The width of the magnets can vary, but the spacing between them must remain constant and not exceed a certain width. The goal is to maximize the uniformity of the magnetic field within the gaps between the magnets. An exact solution for ironless motor structures was mentioned, but the approach could not be applied to the specific geometry. The conversation also mentioned a paper on ironless machines that was well-received, but it is unclear if it was published.
  • #1
thadman
27
0
I'm interested in calculating (followed by optimizing) the uniformity of a magnetic field generated by an array of neodymium magnets.

Let us assume we have an array of neodymium bar magnets,

-each with a constant depth (10mm) and height (2300mm).

-Multiple segments (with alternating poles) may satisfy the total depth requirement (10mm).

-The width of the magnets is allowed to vary, however the spacing between them must remain constant with respect to height.

-The spacing between the magnets must not exceed a finite width (4.25mm) and should be maximized.

-The distance between the centers of adjacent gaps also must not exceed a finite width (4.25mm).

-The bar magnets are arranged to be parallel to one another.

-The total array must span a width between 3400mm and 3800mm.

I am interested in maximizing the uniformity of the magnetic field within the gaps between the magnets.

It appears an exact solution is available for ironless motor structures (utilizing the Coulombian model?), however I have been unable to apply the approach towards my specific geometry.

http://hal.archives-ouvertes.fr/docs/00/41/33/52/PDF/paper-ironless-machines.pdf

Any thoughts?
 
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  • #2
Nice work and paper! Were you able to publish this work after you did it?
 

FAQ: Analytical Calculation/Optimization of Ironless Motor Structure

What is the purpose of analytical calculation and optimization in ironless motor structure?

The purpose of analytical calculation and optimization in ironless motor structure is to determine the optimal design parameters for the motor, such as coil size, number of turns, and magnet placement, in order to achieve the desired performance and efficiency.

How do analytical calculations help in designing ironless motors?

Analytical calculations use mathematical equations and principles to analyze the various components of the motor, such as magnetic fields, forces, and torques. This helps in predicting the performance of different design options and selecting the most efficient one.

What factors are considered in the optimization of ironless motor structure?

The optimization of ironless motor structure takes into account factors such as coil and magnet materials, geometry, and placement, as well as the desired torque and speed requirements. Other considerations may include cost, size, and weight constraints.

What are the advantages of using an ironless motor?

Ironless motors have several advantages over traditional iron-core motors, such as higher efficiency, lower inertia, and smoother operation. They also have less cogging torque, which results in less vibration and noise.

Are there any limitations to using analytical calculation and optimization in ironless motor design?

While analytical calculation and optimization can provide valuable insights into the design of ironless motors, they are not the only considerations. Real-world factors such as manufacturing processes, material availability, and cost may also impact the final design. Therefore, it is important to use a combination of analytical calculations and practical considerations in the design process.

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