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Analysis of Dynamic Characteristics of a Propeller Blade Subjected to Large Material Removal in Milling

Luyi Han 1 and Riliang Liu 2
1. School of Mechanical Engineering, Shandong University, Jinan, 250061 China
2. Key Laboratory of High Efficiency and Clean Mechanical Manufacture of the Ministry of Education, Shandong University, Jinan, 250061 China

Abstract—A propeller blade, as a typical example of low-rigidity components, is prone to chatter and deformation in machining process, especially when large material removal is applied. In order to foresee the problems and then optimize the process, identification of the dynamic behavior of the workpiece is of great importance. This paper studies the dynamic characteristics of the workpiece in the machining process from plate to propeller blade using Finite Element Method. The results show that the time-varying natural frequencies of the workpiece decrease gradually at the beginning steps of the process due to the influence of material removal, and increases afterwards influenced by the geometry of the blade.

Index Terms—surface machining, propeller blade, whirling, dynamic characteristics

Cite: Luyi Han and Riliang Liu, "Analysis of Dynamic Characteristics of a Propeller Blade Subjected to Large Material Removal in Milling," Journal of Industrial and Intelligent Information, Vol. 8, No. 1, pp. 10-14, June 2020. doi: 10.18178/jiii.8.1.10-14

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.






 

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