The Adaptive Analysis Process — Ansoft Designer 7.0 在线帮助文档，Ansys Designer 教程

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The Adaptive Analysis Process

An adaptive analysis refines the mesh in order to increase the precision and accuracy of the solution. When Designer performs an adaptive analysis, the process of computing a current solution is an iterative one. In general, you should first accept the default stopping and refinement criteria. Then, after you generate the desired current solutions, check their convergence to see if the stopping criteria need to be adjusted.

The adaptive frequency is converged when the Delta S for the frequency is reached and all the output variables have converged OR the maximum number of passes for the frequency is reached. When either of those criteria have been reached, the adaptive refinement will move to the next frequency or stop, if there are no more frequencies.The mesh that has been refined at the end of one adaptive frequency will be used as the starting mesh for the next adaptive frequency.

The solution is refined in the following way:

1. Designer generates a dense mesh at a fixed frequency, the frequency specified in the Frequency text box.

2. Designer computes the currents that exist inside the structure when it is excited at a single frequency, the frequency specified in the Adaptive Frequency text box. If a frequency sweep is being performed, an adaptive analysis is performed only at the frequency specified in this box.

3. A solution is generated from the computed currents.

4. If the number of requested passes is satisfied or the target maximum delta norm is within the desired range, the solution process stops. Otherwise, Designer performs another iteration.

5. Designer refines the mesh in the areas of highest error.

6. Another solution is generated using the refined mesh. Designer recomputes the error, and the iterative process (solve — error analysis — refine) repeats until the number of requested passes is satisfied or the target maximum delta norm is within the desired range.

If a frequency sweep is being performed, Designer solves the problem at the other frequency points without further refining the mesh.

The procedure for performing an adaptive solution is shown below:


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