Design for Six Sigma (DFSS) of Hydroformed Engine Cradle Design for SUV Application

Paper #:
  • 2011-26-0109

Published:
  • 2011-01-19
Citation:
Balakrishnan, P., Perumal, J., Salahudeen, A., and Kannan, J., "Design for Six Sigma (DFSS) of Hydroformed Engine Cradle Design for SUV Application," SAE Technical Paper 2011-26-0109, 2011, https://doi.org/10.4271/2011-26-0109.
Pages:
8
Abstract:
In the new product design, meeting customer requirements, process alignment, timely execution and successful implementation plays a critical role. Six sigma methodology is a disciplined, standardized methodology supported by analytical tools to meet the quality and functional targets.An engine cradle or sub-frame is the principal load carrying member in a monocoque vehicle construction. It is extensively used to (i) provide structural support and retention of power train, suspension control arms, stabilizer bar, and steering rack mounting features (ii) to isolate the high frequency vibrations of engine and suspension from the remaining structures (iii) to absorb and transmit the impact forces during frontal crash.This paper attempts to explain (i) the various DFSS-DMADV techniques used during the engine cradle design and development (ii) correlation between the cradle stiffness simulation and test measurement values (iii) cradle NVH test results.
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