Vibration Analysis of Reinforced Beam Structure Using Partially Inserted Longitudinal Core

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The beam structures are considered as one of the most fundamental building elements of technical equipment. Many of the machining tools (for example lathe tool) may be also regarded as the beam structures. The various excitation effects are affecting the machining tools during the machining process. Cutting speeds, cutting forces, chip-making manner, the stiffness of MTW (machine-tool-workpiece) system are predominant effects affecting the dynamics of MTW system and also influencing the machining process (roughness of the machined surface, tool wear, tool or workpiece damage, noise generated by the machining process, etc.). Depending on the excitation effects, the machining tool body (beam structure) must have the required dynamic properties. The modification of beam modal properties based on embedding of inner reinforcing core is presented in this paper. The main aim of the modification is to change the modal properties (mode shapes, natural frequencies) of the beam body.

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311-316

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December 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] L. Meirovitch, Analytical methods in vibrations, McMillan Company, London, (1987).

Google Scholar

[2] D. Thorby, Structural dynamics and vibration in practice - An engineering handbook, Elsevier Ltd., Oxford, (2008).

Google Scholar

[3] M. Nad, Vibration analysis of beams with reinforcing and damping cores, In: 20th Inter. Congress on Sound and Vibration-ICSV20, 7-11 July 2013, Bangkok, Thailand, pp.1-8.

Google Scholar

[4] L. Rolnik, M. Nad, The effect of inner reinforcing cores on natural frequencies of the lathe tool body, In: Internal Doctoral Seminar, May 13-15, 2013, Dubrovnik, Croatia, pp.282-288.

Google Scholar

[5] V. Dekys, M. Saga, M. Zmindak, Dynamics and reliability of mechanical systems, VTS ZU, Zilina, (2004).

Google Scholar