IJMO 2025 Vol.15(2): 74-83
DOI: 10.7763/IJMO.2025.V15.874
Trade-offs in Geometry Optimisation of Aluminium Honeycomb Sandwich Panels: Vibration Attenuation Versus Strength Reduction
Akın Oktav1,2,*, Mehmet Şahin2, and Ali Alkın2
1. Department of Mechanical Engineering, Alanya Alaaddin Keykubat University, Antalya 07425, Türkiye
2. Vibration and Acoustics Laboratory, Alanya Alaaddin Keykubat University, Antalya 07425, Türkiye
Email: akin.oktav@alanya.edu.tr (A.O.); mec.mehmetsahin@gmail.com (M.Ş.); alkin.ali20@gmail.com (A.A.)
*Corresponding author
Manuscript received July 7, 2025; accepted September 27, 2025; published December 4, 2025.
Abstract—Aluminium Honeycomb Sandwich Panels (AHSPs) are employed across various industries including aviation, defence, transportation, construction, and marine applications, where they frequently experience dynamic loading conditions. Understanding the dynamic characteristics of these panels and their response to dynamic loading is vital for engineering design under specific constraints. High-amplitude unwanted vibrations shorten service life, cause fatigue, and adversely affect both the durability and reliability of structural systems. Acceleration amplitude attenuation can be achieved through various methods, one of which is geometry optimisation when material replacement options are limited. Whilst it is often possible to attenuate high acceleration amplitudes through geometry optimisation, the resulting geometry may adversely affect the strength properties. In this study, geometry optimisation that also considers the strength properties of AHSPs is performed using an experimentally validated computational model. Furthermore, changes in strength properties and total mass resulting from acceleration amplitude attenuation are examined, and the associated trade-offs are discussed. The optimisation successfully reduced acceleration amplitudes by orders of magnitude and mass by 21%; however, this came at the cost of a 92% reduction in load-carrying capacity, starkly illustrating the critical trade-off between dynamic and static performance
Keywords—geometry optimisation, modal analysis, sandwich panel, three-point bending test, vibration attenuation
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Cite: Akın Oktav, Mehmet Şahin, and Ali Alkın, "Trade-offs in Geometry Optimisation of Aluminium Honeycomb Sandwich Panels: Vibration Attenuation Versus Strength Re," International Journal of Modeling and Optimization, vol. 15, no. 2, pp. 74-83, 2025.
Copyright © 2025 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
