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RESEARCH PAPERS: Papers on Production Engineering

Cutting Dynamics Identification by Dynamic Data System (DDS) Modeling Approach

[+] Author and Article Information
T. Y. Ahn, K. F. Eman, S. M. Wu

Mechanical Engineering Department, University of Wisconsin, Madison, WI 53706

J. Eng. Ind 107(2), 91-94 (May 01, 1985) (4 pages) doi:10.1115/1.3185988 History: Received July 10, 1984; Online July 30, 2009

Abstract

The dynamics of the cutting process have been conventionally characterized in terms of the Dynamic Cutting Force Coefficients (DCFC) which represent its transfer characteristics at discrete frequencies. However, this approach fails to obtain the transfer function of the process in closed analytical form. Anticipating the stochastic nature of the cutting process and the double modulation principle, a two-input one-output multivariate system was postulated for the dynamic cutting process identification model. The Dynamic Data System (DDS) methodology was used to formulate and characterize the dynamic cutting process using Modified Autoregressive Moving Average Vector (MARMAV) models. Subsequently, transfer functions of the inner and outer modulation dynamics of the cutting processes were obtained from the identified models.

Copyright © 1985 by ASME
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