Quality engineering of a traction alternator by robust design

U. H. Acharya, E. V. Gijo, J. Antony

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)
94 Downloads (Pure)


Robust design is an engineering methodology for improving productivity during research and development so that high-quality products can be developed and produced quickly and at low cost. A large electrical company was developing traction alternators for a diesel electrical engine. Customer requirement was to obtain very high efficiency which, in turn, was influenced by several design parameters. The usual approach of the 'design-build-test' cycle was considered time-consuming and costly; it used to take anywhere from 4 months to 1 year before finalizing the product design parameters as it involved physical assembly and also testing. Instead, the authors used Taguchi's parameter design approach. This approach took about 8 weeks to arrive at optimum design parameter values; clearly demonstrating the cutting edge of this methodology over the traditional design-build-test approach. The prototype built and tested accordingly gave satisfactory overall performance, meeting and even exceeding customer requirements.
Original languageEnglish
Pages (from-to)297-304
Number of pages7
JournalProceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
Issue number2
Publication statusPublished - 2010


  • quality engineering
  • parameter design
  • robust design
  • noise factors
  • signal-to-noise ratio

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