標題: Theoretical and experimental investigations on the spinning BTA deep-hole drill shafts containing fluids and subject to axial forces
作者: Perng, YL
Chin, JH
機械工程學系
Department of Mechanical Engineering
關鍵字: eigenproperties;deep-hole drilling;Timoshenko beam;Euler-Bernoulli beam
公開日期: 1-Nov-1999
摘要: The object of this investigation is to develop equations of motion and analyze the eigenproperties of spinning boring trepanning association (BTA) deep-hole drill shafts containing flowing fluid and subject to compressive axial force. The energy formulations are based on a coordinate system attached to the spinning shaft (floating coordinate system), and the equations of motion were derived using Hamilton's principle. This problem was studied for two different models: a Timoshenko beam model (which includes shear deformation, rotatory inertia moment, and gyroscopic moment effects) and a Euler-Bernoulli beam model. Galerkin's method was used to obtain solutions of the dynamic system. And two kinds of experimental test were performed to investigate the eigenproperties of spinning BTA deep-hole drill shafts: impulsive testing for non-spinning tool shafts, and random-input excitation testing for spinning tool shafts. Experimental results are also compared with simulation results. (C) 1999 Elsevier Science Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0020-7403(98)00091-5
http://hdl.handle.net/11536/30986
ISSN: 0020-7403
DOI: 10.1016/S0020-7403(98)00091-5
期刊: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume: 41
Issue: 11
起始頁: 1301
結束頁: 1322
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