Robust multivariable control of rotorcraft in forward flight

James N. Rozak, Asok Ray

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


This paper presents the synthesis and analysis of multivariable robust control systems for a UH-60 Black Hawk helicopter in forward flight based on the ADS-33C specification and the Structured Singular Value (μ) analysis. Several robust controllers with different configurations (e.g., a rate or attitude command, 3 or 4-axis design) were constructed to determine which configuration provides the best overall handling qualities performance. It was determined that the Rate Command 3-axis, designed with an ideal model structure, yielded the best overall performance.

Original languageEnglish (US)
Pages (from-to)149-159
Number of pages11
JournalJournal of the American Helicopter Society
Issue number2
StatePublished - Apr 1997

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering


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