Abstract
Chatter can be predicted and avoided through the chatter stability lobe, which is computed by dynamic response (frequency response function) at the tool point. Modal impact testing is time-consuming and inefficient, which is not suitable for tool point dynamic prediction. On the contrary, receptance coupling method can efficiently identify the tool point dynamic by combining the full (translational and rotational) receptance matrix of spindle-holder assembly with numerical or analytical model of any attached free-free tool. Generally, it is difficult to directly obtain the rotational receptances of spindle-holder assembly. This paper proposes an efficient experimental method which deduces the rotational receptances from translational receptances on a single experimental setup by improved receptance coupling technique. One main advantage of this method is to further reduce required impact tests and increase efficiency of tool point dynamic prediction. Besides, a wider application of the proposed method can be achieved. The presented approach is experimentally verified and compared with the state-of-the-art methods.
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Liao, J., Yu, D., Zhang, J. et al. An efficient experimental approach to identify tool point FRF by improved receptance coupling technique. Int J Adv Manuf Technol 94, 1451–1460 (2018). https://doi.org/10.1007/s00170-017-0957-y
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DOI: https://doi.org/10.1007/s00170-017-0957-y