| Summary: | 碩士 === 國立臺北科技大學 === 製造科技研究所 === 95 === This study is applying Taguchi method for high performance computer cooling fan designed by way of the integration of CAD/CAE/CAM systems. At the beginning of this study, the possible performance influencing parameters were analyzed, and the most effective parameters for further optimization were conclouded. The fan models were drawn by Pro-E software, base on the parameter stated the Taguchi method. The P-Q curves, referring to the performance of the fan models, were created in CAE using STAR-LT software. The physical fan models using the set of parameters combination were machined with the help of Pro-CAM software.
Finally, the mockups were tested to verify the results with the CAE simulation. From the results of experiment, it took 20 sets of numerical simulation and mockups.Compared with the simulation and Mockups, the value of the simulation was very close to the flow of the mockups fans. The difference was less than 5%. Although the operating area had about 16% deviation from mockups, however they were all constructively correlated and stabilized. The reason for this deviation was that the fans stalled in the operating area. The fan stalled when the pressure continuously increased in the high pressure area, and it caused fluids to flow back seriously. It has no valuable on the area. The numerical simulation could not able to imitate the above phenomenon.
The fan industry uses fans to solve the overheating problem, usually always in the region of the stall area. This P-Q curve data of the fan`s stall area in the experiment relates positively to the simulation. It proves that eventhough the CAE software cannot show the accurate values, but it already gives the trend. By the integration of CAD/CAE/CAM systems and application of the Taguchi Method to the fan design, the proposed rapid design technique can really accelerate the speed of fan design and reduce the material cost.
|
|---|
