Abstract
This paper conceptually explores the potential of exploiting resonant and anti-resonant
interactions of force transmissibility functions to suppress responses under external (gust-like)
excitation in High Aspect Ratio Wings (HARW). By considering a half-fuselage and wing
configuration with a strut incorporating an inerter, it is shown numerically that the anti-resonant
regions of the inertial load response of the fuselage can be tailored by augmenting the inertial
characteristics of the original configuration. Whilst this was parametrically achieved by varying
the inertance of the strut-device, the analytical examination of the underlying contributing factors
to anti-resonance recognized a significant influence from the high-frequency non-resonant modes.
The demonstrated approach, which achieved frequency-localized suppression of the fuselage
responses, could improve ride comfort and reduce specific structural load transmission in HARW
aircraft. At the same time, it is stipulated that the same modal inertia-based response tailoring could be aimed at reducing variety of other critical loads such as wing root bending moments.
interactions of force transmissibility functions to suppress responses under external (gust-like)
excitation in High Aspect Ratio Wings (HARW). By considering a half-fuselage and wing
configuration with a strut incorporating an inerter, it is shown numerically that the anti-resonant
regions of the inertial load response of the fuselage can be tailored by augmenting the inertial
characteristics of the original configuration. Whilst this was parametrically achieved by varying
the inertance of the strut-device, the analytical examination of the underlying contributing factors
to anti-resonance recognized a significant influence from the high-frequency non-resonant modes.
The demonstrated approach, which achieved frequency-localized suppression of the fuselage
responses, could improve ride comfort and reduce specific structural load transmission in HARW
aircraft. At the same time, it is stipulated that the same modal inertia-based response tailoring could be aimed at reducing variety of other critical loads such as wing root bending moments.
| Original language | English |
|---|---|
| Publication status | Published - Jun 2024 |
| Event | International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2024 - The Hague, Netherlands Duration: 17 Jul 2024 → 21 Jul 2024 |
Conference
| Conference | International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2024 |
|---|---|
| Country/Territory | Netherlands |
| City | The Hague |
| Period | 17/07/24 → 21/07/24 |