Compliant Mechanisms - Integration of Micro Gripping Device with Positioner Using Topological Optimization

Paper #:
  • 2015-01-0499

Published:
  • 2015-04-14
DOI:
  • 10.4271/2015-01-0499
Citation:
Jawahar, N., Manoharan, S., and Chandran, H., "Compliant Mechanisms - Integration of Micro Gripping Device with Positioner Using Topological Optimization," SAE Technical Paper 2015-01-0499, 2015, doi:10.4271/2015-01-0499.
Pages:
5
Abstract:
Material energy and cost minimization has been the need of the hour off late. The work aims at designing a micro gripping device which has suitable application in bio medical industry; specifically surgical operation of comminuted fracture using CAE software. Being a combination of an inverter and a clip, the ability of the compliant mechanism to be used as a gripper as well as positioner constitutes its rare versatility. The compliant mechanisms are single-piece structures, having no backlash as in case of rigid-body, jointed mechanisms and comparatively cheaper to manufacture. Designed in MATLAB R2008a using the concept of topological optimization, modeled in AutoCAD Mechanical 2011 and analyzed in ANSYS Workbench 13.0; the mechanism is initially designed with a geometrical advantage of 2. The MATLAB code which is an improvement of the 99 line code written by O. Sigmund contains the main program; the Optimality Criteria based optimizer; a mesh independency filter and the finite element code.
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