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Kahraman
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The disc rotates from its center, I don't think there is anything that could cause vibration.Tom.G said:Is the brake disc mechanically vibrating? If so, make it stiffer.
Torque fluctuations in Ansys Maxwell simulations are often due to the discretization of the geometry, mesh irregularities, or the inherent physical properties of the modeled system. Factors such as the resolution of the mesh, the alignment and interaction of magnetic fields, and the precision of material properties can significantly influence the results. Ensuring high-quality meshing and accurate material modeling can help reduce these fluctuations.
To minimize torque fluctuations, focus on refining the mesh around critical areas where magnetic fields change rapidly, such as near air gaps or sharp edges of components. Additionally, increasing the overall mesh density and using higher-order elements can improve the accuracy of the simulation. It is also crucial to verify the physical accuracy of the input parameters, like material properties and boundary conditions.
The choice of solver and its settings can significantly impact the results of a simulation. Using a transient solver with appropriate time-stepping methods can help capture dynamic effects more accurately, thereby reducing torque fluctuations. Adjusting convergence criteria and employing adaptive time-stepping techniques where the solver adjusts the time step based on the solution’s changing dynamics can also lead to more stable and accurate results.
Torque ripple refers to the cyclic variation of torque output in a rotating machine and is typically observed in the simulation results as fluctuations. It is important to understand whether these ripples are due to physical phenomena, such as cogging torque in electric motors, or if they stem from numerical artifacts of the simulation process. Analyzing torque over several cycles and comparing with theoretical predictions or experimental data can help in interpreting these results accurately.
Yes, the choice of materials can greatly influence the behavior of magnetic fields and thus affect torque fluctuations. Materials with different magnetic permeabilities, electrical conductivities, and other electromagnetic properties can alter how magnetic fields are distributed and interact within the device. Accurately modeling these materials and understanding their properties is crucial for predicting torque behavior and reducing unwanted fluctuations.