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Proceedings of the 17th International Conference on Manufacturing Systems – ICMaS
Published by Editura Academiei Române, ISSN 1842-3183
Volume No. 3, 2008
University POLITEHNICA of Bucharest, Machine and Manufacturing Systems Department
Bucharest, Romania, 13-14 November, 2008
pp. 073-078
VIRTUAL ANALYSIS OF THE FEED DRIVE SYSTEM
Ramona Cristina VARBAN, Radu Constantin PARPALĂ, Cristina PUPĂZĂ
Abstract: Using a set of dedicated software’s engineers are able to analyze all aspects of real life usage of machine tools elements without spending money on real prototypes. A high-speed machine tools drive system generates high friction at contact areas, into the screw-ball mechanism and bearings, thereby causing thermal expansion of the screw which adversely affects machining accuracy. In the dynamic analysis the position of all bodies are determinate as a result of time dependent forces applied to the mechanism. The finite element method is used to determinate dynamic characteristics of the feed drive system, e.g., natural-frequencies and mode shapes. The structural behaviour under dynamic and thermal loads is evaluated in order to obtain an optimized design of the feed drive.
Key words: ball screw, thermal error, finite element method, thermocouple, natural-frequencies.
Authors:
Eng., Ramona Cristina VARBAN, PhD Student, University “Politehnica” of Bucharest, Faculty of Engineering and Management of Technological Systems, Machines and Production Systems Department,
E-mail: crissram@yahoo.com
Eng., Radu Constantin PARPALĂ, PhD Student, University “Politehnica” of Bucharest, Faculty of Engineering and Management of Technological Systems, Machines and Production Systems Department,
E-mail: pmc@mix.mmi.pub.ro
PhD. Eng., Cristina PUPĂZĂ, Associate Professor, University “Politehnica” of Bucharest, Faculty of Engineering and Management of Technological Systems, Machines and Production Systems Department,
E-mail: cristinapupaza@yahoo.co.uk
Electronic mail: orgcom@icmas.eu / General Information: http://www.edition2009.icmas.eu/