Trajectory Dependent Structural Vibration and Its Effects on Surface Generation. (March 2019)

• Record Type: Journal Article
• Authors: Yang, Mengxiang; Mao, Xinyong; Peng, Yili; Li, Bin; Jiang, Xuchu; Li, Liangjie
• Is Part Of: IOP conference series. Volume 491(2019)
• Publication Date: 2019-03
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/491/1/012009
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: The vibration of machine tool plays an important role in surface generation. However, the vibration characteristics is different for different machine tool structures and different machining path. This paper proposed a new method of structural sensitivity analysis to identify trajectory dependent structural vibration and its effect on surface generation in milling. The experimental and theoretical results verify that (i) Multimode low-frequency vibration of the sensitive structures (MLFVSS) directly determines the surface topography in milling; (ii) The sensitivity is different for different structures or the same structure at different modes; (iii) Structural vibration characteristics is related to the machining path, resulting in different influence of the structural vibration on surface generation at different position of the machining path. Finally, a surface topography prediction model was established based on the experimental results. This study is helpful to the optimization of machine tool structures and the selection of machining parameters.