Paper Title:
A Study on Developing Robustness Engineering by Using Stochastic Analysis Method
  Abstract

The purpose of this study is to evaluate the influence of the scatter in mechanical properties and stamping process parameters on an industrial sheet metal forming process. Based on a previously optimized forming process, a robustness analysis has been performed. The robustness analysis clearly showed production problems for the part not initially revealed by the analysis of the process that was trimmed for “optimality”. The sensitivity of the results on the variation of the parameters was evaluated. It was shown that all parts of the sheet do not react equally sensitively to the variation of the input. Zones of critical response could be identified in accordance with the zones on the actual part that showed failure in mass production. The results reveal that the common practice of performing evaluations with fixed safety margins is non-effective and hence very dangerous, or is extremely conservative and thus costly. The application of stochastic simulation methods reduces the need for wide safety margins while simultaneously increasing the reliability of the process by incorporating uncertainty into the simulation

  Info
Periodical
Chapter
Chapter 1: Computer-Aided Design, Manufacturing and Engineering
Edited by
Jiuba Wen, Fuxiao Chen, Ye Han and Huixuan Zhang
Pages
102-107
DOI
10.4028/www.scientific.net/AMM.120.102
Citation
D. W. Jung, B. C. Kim, D. H. Kim, D. T. Nguyen, "A Study on Developing Robustness Engineering by Using Stochastic Analysis Method", Applied Mechanics and Materials, Vol. 120, pp. 102-107, 2012
Online since
October 2011
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Price
$32.00
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