Quantifying the impact of high-lift actuator mass on dynamic aeroelasticity for the NASA Common Research Model

Moss, Benjamin R., Da Ronch, Andrea and Conti, Claudio (2021) Quantifying the impact of high-lift actuator mass on dynamic aeroelasticity for the NASA Common Research Model. In AIAA Scitech 2021 Forum. Aerospace Research Central.. (doi:10.2514/6.2021-0907).

Abstract

High–lift actuator mass sizing and assessment of the high–speed aeroelastic properties of an aircraft are not performed concurrently in any phase of aircraft design. Failing to consider accurate estimates of actuator masses in the structural model of an aircraft may introduce certain limitations. The aim of this work was to discover the benefits of combining low–speed sizing characteristics with the performances of the clean configuration at high speeds. The high–lift configuration of the Common Research Model was used as the test case throughout. First, high–lift actuator masses at both leading and trailing edges were sized using two design philosophies that stress the importance of optimising for cost and weight. Next, a set of high–lift wing configurations were created, permuting locations of actuator masses and the values of the
estimated masses. Finally, an assessment of the impact of these configurations on the flutter occurrence and on the gust load analyses were made, comparing the results to the baseline configuration. It was found that introducing high–lift actuator masses within the aeroelastic assessment is surprisingly beneficial and that conservative margins in the sizing loads can be rightly reduced, with prospective savings in structural masses.

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Contributors

Author: Andrea Da Ronch

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