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http://dx.doi.org/10.20910/JASE.2022.16.1.17

Re-establishing Method of Stability Margin Airworthiness Certification Criteriafor Flight Control System  

Kim, Dong-hwan (Flight Control Law Team, Korea Aerospace Industries, Ltd.)
Kim, Chong-sup (Flight Control Law Team, Korea Aerospace Industries, Ltd.)
Lim, Sangsoo (Aerospace Technology Research Institute, Agency for Defense Development)
Koh, Gi-oak (Flight Control Law Team, Korea Aerospace Industries, Ltd.)
Kim, Byoung soo (School of Aerospace and Software Engineering, Gyeongsang National University)
Publication Information
Journal of Aerospace System Engineering / v.16, no.1, 2022 , pp. 17-27 More about this Journal
Abstract
A certain level of stability margin airworthiness criteria should be met to secure robustness against uncertainties between the real plant and the model in a flight control system design. The U.S. Department of Defense (DoD) specification of MIL-F-9490D and airworthiness certification standard of MIL-HDBK-516B uses gain and phase margin criteria of flight control system. However, the same stability margin criteria is applied at all development phases without considering the design maturity of each development phase of the aircraft. Ultimately, a problem arises when the aircraft operation envelope is excessively restricted. This paper proposes the relation of handling qualities and stability margin, and presents re-established stability margin criteria as a development phases and verification methods. The results of the research study are considered to contribute to the verification of the stability margin criteria more flexibly and effectively by applying the method to not only the currently manned developing aircrafts but also the unmanned vehicle to be developed in the future.
Keywords
flight control system; stability margin; airworthiness certification criteria; re-establish;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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