Structural Strength Analysis And Structural Parameters Majorization On The Vibration Disc

The disc's vibration dryer could be used to dry kinds of materials based on the theories of vibrating, heat conduction and transfer, and the vibration disc was the most important part for conducting drying process. The vibration disc would endure thermal load and alternating structural load in this drying process. This article conducted static strength analysis, hot-structure coupling analysis and fatigue strength analysis on the vibration disc by the use of ANSYS Workbench and improved the vibration disc's structure for a better heat transfer efficiency.This article firstly computed the structural strength when the vibration disc was not working and the results showed that the structural strength was safe enough.In the aspect of structural strength analysis, this article focused on conducting hot-structure coupling analysis and factigue strength analysis on the vibration disc. We firstly setup the working parameters of the hot water and conducted CFX analysis, in a result, we got the temperature distribution of the hot water which was the basement of thermal analysis. In thermal analysis, this article used the results of CFX analysis, setup the heat conduction, con-vection and radiation parameters and finally got the temperature distribution of the whole vi-bration disc which was the basement of structural analysis. In structural analysis, this article firstly used the loaded temperature load and the maximum structural load to conduct hot-structure coupling analysis, and then, this article used the loaded temperature load, the alternating structural load and the stress-life curves, handled the influences on the fatigue life produced by the welding stress reasonably, and conducted fatigue analysis. As a result, we got the life, safety factor and the equivalent alternating stress distribution. All of these results showed that the hot-structure strength and the fatigue strength of the vibration disc met the production requirements.In the aspect of optimizing the structure of the vibration disc, this article focused on im-proving the supporting tubes for higher heat transfer efficiency. The influences on the tem-perature distribution of the hot water produced by the shape, distribution, size and quantity were computed and demonstrated. The results showed that the triangular supporting tubes improved the temperature distribution of the hot water to some extent, especially, the local high temperature region around the supporting tubes disappeared, but as a whole, the tem-perature distribution still needed to be optimized, and that the quadrate supporting tubes fur-ther improved the temperature distribution of the hot water but with a large high temperature region near the inlet, and that using the side by side arranged supporting tubes would worsen the temperature distribution, and that the temperature distribution firstly improved then worsen when decreasing the size of the supporting tubes, and that the temperature distribution of the hot water was improved drastically and we got a well-distributed temperature distribu-tion with a very small high temperature region when increasing the number of the supporting tubes. At last, the temperature distribution of the hot water was the most satisfying when us-ing six rows of cross-distribution supporting tubes with a quadrate cross section whose side length was 50mm and each row contained 12 supporting tubes, set this project as the final op-timizing precept and examin the structural strength of the optimized vibration disc, results showed that the structural strength of the vibration disc was big enough.