| DOI | Resolve DOI: https://doi.org/10.1115/IMECE2021-68541 |
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| Author | Search for: Stachiw, Terrin1; Search for: Ricciardi, Joseph1; Search for: Crain, Alexander1 |
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| Affiliation | - National Research Council of Canada. Aerospace
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| Format | Text, Article |
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| Conference | ASME 2021 International Mechanical Engineering Congress and Exposition, November 1-5, 2021, Virtual, Online |
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| Subject | aircraft; pareto optimization; system identification; degrees of freedom; flight; frequency response; modeling; simulation |
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| Abstract | Aircraft system identification can either occur in the time-or frequency-domain with each approach having inherent advantages and disadvantages. For example, time-domain modelling generates superior time history matches and has a superior ability to achieve a trim solution. However, time-domain models do not provide a high degree of insight to the frequency responses of the system, which is important for control law development and for matching handling qualities for pilot-in-the-loop simulation — this is a strength of the frequency-domain approach. This paper utilises a Pareto optimization procedure to combine both the time- and frequency-domain approaches and exploit the strengths of both methods. Pareto fronts are generated for the system identification of a 6 degree-of-freedom forward flight model at 90 kts of the National Research Council of Canada’s Bell 412 helicopter. The generated Pareto fronts showed the necessity of balancing the time- and frequency-domain matches whereby moving from the compromise solution to either the isolated time- or frequency-domain solutions resulted in a small improvement in one while the other suffered relatively more. Accordingly, the multi-objective solution using Pareto optimization capitalized on the strengths of both approaches and avoided an overspecialized solution in either of the domains. |
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| Publication date | 2022-01-25 |
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| Publisher | American Society of Mechanical Engineers |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | b34cc80e-e92f-480c-96d3-7c928a0eb246 |
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| Record created | 2023-01-05 |
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| Record modified | 2023-01-05 |
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