EHTC 2009

Topological, Shape and Multidiciplinary Combined Optimization for Fixed Crossbeam in Hydraulic Press through the use of OptiStruct and HyperStudy

Roberto D'Aria, Altair Engineering

Weight saving is becoming more and more a standard requirement in mechanical machinery domain, both in terms of raw material and necessary power in moving the machine tool masses. Currently design of mechanical machineries is mainly influenced by robustness engineering; the necessity of an almost infinite fatigue life drives the traditional engineering and development to an excessive use of cast iron and steel, combined with powerful electric motors.

Furthermore dedicated CAE methodology activities are recently more and more applied in order to weight reduction combined with performances optimization; typical fields of application of CAE methodologies are, in this case, the evaluation of structures normal modes, multibody dynamics, topologycal and multidisciplinary optimization.

The purpose of the paper is to show this methodological evolution done on the simulation aspect. In this presentation,a punch press topologycal optimization will be introduced, showing how the conservation, so as an increase, of mechanical and precision performances of a machine tool can be done with a substantial reduction of mass.

 

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