Proceedings of the 2nd International Conference on Aviation Industry, Education, and Regulation, AVINER 2023, 8-9 November 2023, Jakarta, Indonesia

Research Article

Numerical Analysis of Bird Strike on Engine Cowling of AW139 Helicopter using Sandwich Composite Material with Lattice Core Structure

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  • @INPROCEEDINGS{10.4108/eai.8-11-2023.2345975,
        author={Budi  Aji Warsiyanto and Syarifah  Fairuza and Muhammad Hadi Widanto and Gavin Mustika Kresna},
        title={Numerical Analysis of Bird Strike on Engine Cowling of AW139 Helicopter using Sandwich Composite Material with Lattice Core Structure},
        proceedings={Proceedings of the 2nd International Conference on Aviation Industry, Education, and Regulation, AVINER 2023, 8-9 November 2023, Jakarta, Indonesia},
        publisher={EAI},
        proceedings_a={AVINER},
        year={2024},
        month={5},
        keywords={bird strike engine cowling sph lattice structure sandwich composite aw139 helicopter},
        doi={10.4108/eai.8-11-2023.2345975}
    }
    
  • Budi Aji Warsiyanto
    Syarifah Fairuza
    Muhammad Hadi Widanto
    Gavin Mustika Kresna
    Year: 2024
    Numerical Analysis of Bird Strike on Engine Cowling of AW139 Helicopter using Sandwich Composite Material with Lattice Core Structure
    AVINER
    EAI
    DOI: 10.4108/eai.8-11-2023.2345975
Budi Aji Warsiyanto1,*, Syarifah Fairuza1, Muhammad Hadi Widanto1, Gavin Mustika Kresna1
  • 1: Universitas Dirgantara Marsekal Suryadarma
*Contact email: budiajiwarsiyanto@gmail.com

Abstract

Bird strikes can potentially damage the engine and body, disrupting flight safety. One of the helicopter components susceptible to bird strike is the engine cowling. This study aims to analyze the effect of sandwich structure core material variation on the impact response of the AW139 helicopter's engine cowling. The finite element method was used to analyze the strength of the engine cowling structure due to bird strike because it can effectively evaluate several structural designs. The bird model was modeled through Smooth Particle Hydrodynamics (SPH). This study uses sandwich composite material with foam, body-centered cubic (BCC) lattice, and foam-lattice hybrid cores. The lattice material was found to undergo buckling and plastic deformation at the impact area to absorb greater energy. The hybrid foam-lattice core material is stiffer, which reduces energy absorption and deformation. When the outer plate is thicker, the structure has better resistance to composite damage. Thinner outer plates provide better energy transfer to the core, leading to increased impact energy absorption, but can potentially cause premature breakage of the composite material.