Title: An integrated tool for design, shape modelling and performance analysis of 3D cam

Authors: Eugenio Pezzuti, Alessio Ubertini, Pier Paolo Valentini, Leonardo Vita

Addresses: Department of Mechanical Engineering, University of Tor Vergata, Via del Politecnico, 1-00133 Rome, Italy. ' Department of Mechanical Engineering, University of Tor Vergata, Via del Politecnico, 1-00133 Rome, Italy. ' Department of Mechanical Engineering, University of Tor Vergata, Via del Politecnico, 1-00133 Rome, Italy. ' Department of Mechanical Engineering, University of Tor Vergata, Via del Politecnico, 1-00133 Rome, Italy

Abstract: In this paper, an easy procedure to integrate three dimensional cam profile synthesis and Computer Aided Design is presented. The aim of the proposed method is to combine an accurate kinematic analysis with shape modelling using CAD programmes. In many cases, the manufacturing process and cutting approximation cannot be neglected and affect the final drawing. For specific needs, as spatial cams, an appropriate and more accurate synthesis is required. On the other hand, the only geometrical design misses all the advantages of modelling, for example the correct calculation of mass properties, interferences, and the possibility to perform dynamical and stress analysis. The authors develop an integrated tool which interacts with both CAD software and algebraic solver in order to draw an accurate cam model and to compute performances as regards errors on position, acceleration, jerk and jounce. This methodology can help the designers in the definition of digital mock-up.

Keywords: CAD modelling; 3D barrel cam design; performance analysis; performance evaluation; shape modelling; cam profile synthesis; kinematic analysis; process selection; feature-based modelling.

DOI: 10.1504/IJCAT.2005.006480

International Journal of Computer Applications in Technology, 2005 Vol.23 No.2/3/4, pp.185 - 191

Available online: 13 Mar 2005 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article