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All Journal Eduvest - Journal of Universal Studies Jurnal Mahasiswa Dirgantara
Sari, Rafika Arum
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Aerospace Engineering Computer Science & IT Control & Systems Engineering Health Professions Materials Science & Nanotechnology Mechanical Engineering Neuroscience Social Sciences Transportation

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Numerical Analysis and Taguchi Optimization of Bird Strike Resistance on Helicopter Engine Cowling Using Lattice Structure Warsiyanto, Budi Aji; Widanto, Muhammad Hadi; Sari, Rafika Arum; Rizki, Alfan; Putera, Rizky Akmal
Eduvest - Journal of Universal Studies Vol. 5 No. 8 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i8.52086

Abstract

Bird strikes pose a major risk to the safe operation of aircraft. This study evaluates a sandwich structure design with a lattice material as a helicopter engine protection device. Advances in additive manufacturing have enabled the advancement and fabrication of architected cellular materials. The lattice structures were assessed computationally through nonlinear dynamic finite element method, considering variations in topology, materials, and relative density. The Taguchi approach was used to establish the ideal lattice structure by maximizing specific energy absorption (SEA). The results showed that a body-centered cubic Z (BCCZ) lattice structure using Ti-6Al-4V material and 30% relative density performed the best at absorbing impact energy. Additionally, the sandwich structure that uses BCCZ lattice, effectively protected the engine cowling under the operational speed of a helicopter. The findings indicate that the BCCZ lattice core enhances the impact resistance of composite materials by minimizing structural deformation. Moreover, a quasi-isotropic layup combined with a lattice material sandwich plate provides superior impact resistance, deformation control, and damage mitigation compared to other sandwich designs.
Analisis Risk Priority Number (RPN) Menggunakan Failure Mode And Effects Analysis (FMEA) Terhadap Hasil Inspeksi Airworthiness Putra, Rizky Aulia; Lestari, Aprilia Sakti Kusuma; Sari, Rafika Arum
Jurnal Mahasiswa Dirgantara Vol. 4 No. 2 (2025): Jurnal Mahasiswa Dirgantara
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jmd.v4i2.177

Abstract

Keselamatan penerbangan merupakan aspek krusial yang dijaga melalui standar teknis dan prosedur inspeksi kelaikudaraan (airworthiness). Namun, hasil inspeksi masih berpotensi mengandung kegagalan baik teknis maupun administratif yang berdampak pada legalitas dan keselamatan operasi pesawat. Penelitian ini bertujuan mengidentifikasi potensi kegagalan pada hasil inspeksi kelaikudaraan serta menentukan prioritas risikonya menggunakan metode Failure Mode and Effects Analysis (FMEA). Analisis dilakukan dengan menghitung Risk Priority Number (RPN) melalui tiga parameter, yaitu Severity (S), Occurrence (O), dan Detection (D). Data diperoleh melalui observasi lapangan, wawancara dengan personel inspeksi, dan telaah dokumen teknis. Hasil penelitian menemukan empat potensi kegagalan utama, yaitu kerusakan kursi cabin crew (RPN 150), dokumen pesawat hampir kedaluwarsa (RPN 140), laporan uji altimeter dan transponder (RPN 96), serta Slide Assy Escape mendekati kedaluwarsa (RPN 81). Berdasarkan temuan tersebut, kerusakan kursi cabin crew memiliki risiko tertinggi. Rekomendasi perbaikan mencakup digitalisasi dokumentasi, penerapan sistem pengingat otomatis, peningkatan pemeriksaan fisik kabin, serta integrasi metode FMEA ke dalam SOP inspeksi guna meningkatkan efektivitas pengawasan kelaikudaraan.
Co-Authors Budi Aji Warsiyanto Lestari, Aprilia Sakti Kusuma muftiarifin Muhammad Hadi Widanto Putera, Rizky Akmal Putra, Rizky Aulia Raihan Maulana Yahya Rizki, Alfan