An Identification Approach of Dynamic Contact Parameters for Toolholder-Spindle Joint Base on Frequency Response Function

Abstract:

The joint of the toolholder-spindle is the most weakness structure in the system of toolholder-spindle. It affects the manufacturing efficiency and the surface quality of work piece. It is important to identify the dynamic contact parameters for evaluating the connectivity of the toolholder-spindle system. The article introduces an approach to identify the dynamic contact parameters of toolholder-spindle joint base on frequency response function (FRF). Using the BT40 toolholder-spindle system, we can get the dynamic contact parameters curve of toolholder-spindle by the previous approach. The translational and rotational contact parameters can be obtained by sensitivity analysis. By comparing the simulation results with those of experimentation, it can prove the validity of identified dynamic contact parameters. The research results can provide a theoretical basis for the optimization of toolholder.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 748-753
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.748
• Online since: June 2012
• Authors: Guo Ping An, Xin Yu Liu, Yong Sheng Zhao, Li Gang Cai
• Keywords: Frequency Response Function, Identification of Contact Parameters, Sensitivity Analysis, Spindle-Toolholder Joint

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