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All Journal Jurnal Ilmiah Desain & Konstruksi Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Infotekmesin
Galih Prakoso
King Saud University
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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ANALISIS SIMULASI PEMBEBANAN STATIS TERHADAP SAMBUNGAN DOWEL PADA PRODUK CURVED FEET STOOL Bahtiar Rahmat; Taufik Ramadhan Fitrianto; Yessi Nasia Ulfia; Galih Prakoso
Jurnal Ilmiah Desain & Konstruksi Vol 23, No 2 (2024)
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/dk.2024.v23i2.11820

Abstract

Kontribusi dengan persentase 80% terhadap produk ekspor mebel, furnitur menjadi industri dengan potensi pasar yang besar. Namun demikian, sambungan pada produk furnitur merupakan bagian yang perlu diperhatikan, karena pada bagian ini sangat rentan terjadi patahan atau kerusakan. Pengujian produk prototipe perlu sumber daya dan waktu lebih, sehingga dikembangkan metode pendekatan untuk memperoleh data hasil pengujian kekuatan produk tanpa membuat prototipe atau lebih dikenal dengan metode analisis elemen hingga (FEA). Penelitian ini bertujuan untuk menguji kekuatan sambungan dari sebuah stool yang dipasangkan pasak kayu dengan ukuran Ø8, Ø10 & Ø12 mm sebagai konstruksinya. Hasil simulasi pembebanan statis menunjukkan jika aplikasi pasak kayu Ø12 mm mampu menahan beban 60kgf lebih baik dibandingkan dengan pasak kayu Ø8 dan Ø10 mm. Tegangan von misses maksimum sebesar 23,14 MPa masih jauh dibawah nilai tegangan luluh material. Selain itu pergeseran dan regangan maksimal hanya senilai 0,562 mm dan 0,0011 secara berurutan.
Reliability-Based Maintenance Optimization for Transfer Carriage Station in Palm Oil Mills Using FMEA and Fishbone Analysis Nadya Rishelin; Gustiarini Rika Putri; Galih Prakoso; Viky Kurnia Putri
JTI: Jurnal Teknik Industri Vol 11 No 2 (2025): December 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v11i2.38323

Abstract

Failures in the transfer carriage at the tippler station significantly disrupt material flow in palm oil mills, contributing to approximately 50% of total downtime during seven months of operation. This study aims to identify critical failure components of the transfer carriage system using the FMEA framework, analyze the root causes of these failures through the fishbone diagram and recommend maintenance improvement strategies. Data were collected through maintenance records, direct observation, and SOD questionnaires completed by three experienced personnel. Failure Modes and Effects Analysis (FMEA) was applied to prioritize risks, while a fishbone diagram was used to determine root causes. The analysis showed that bearing damage or broken had the highest RPN (189) and represented the primary cause of operational interruptions. Improvement actions including automatic lubrication, stricter inspections, operator training, and higher-quality bearing selection, are projected to reduce failure frequency and unplanned downtime, enabling a shift from reactive to preventive maintenance while improving asset utilization and production stability This study offers a structured, data-driven framework for enhancing equipment reliability in palm oil mills, with practical relevance for maintenance planning and resource allocation. Keywords: Palm oil mill; transfer carriage; tippler station; FMEA; fishbone diagram; critical component
Evaluasi Desain Struktur Kursi Kerja Kayu Menggunakan Simulasi Finite element method (FEM) Taufik Ramadhan Fitrianto; Atdfal Muhammad; Galih Prakoso
Infotekmesin Vol 17 No 1 (2026): Infotekmesin: Januari 2026
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v17i1.2998

Abstract

Existing office chair designs often inadequately consider user anthropometry and structural strength, which may reduce comfort and compromise user safety. This study aims to redesign an office chair based on employees’ anthropometric data and to validate improvements in its structural performance using the Finite Element Method (FEM). Numerical simulations were conducted in Autodesk Inventor under incremental static loads ranging from 500 to 2000 N applied to the seat, with an additional backrest load equal to 40% of the seat load. The results indicate that the original chair design could withstand a maximum load of approximately 2,038 N, with a maximum deformation of 3.91 mm and a minimum factor of safety of 1.02. In contrast, the redesigned chair sustained loads up to approximately 7,651 N, with a maximum deformation of 4.21 mm and a factor of safety of 3.83. This represents an improvement in load-bearing capacity of about 3.7 times. The enhancement was primarily achieved through structural optimization, including increased wooden cross-sections and fewer joints. The findings demonstrate that integrating ergonomic design with FEM-based structural analysis provides a reliable engineering approach to improve the performance of wooden office chairs prior to fabrication.
Co-Authors Atdfal Muhammad Bahtiar Rahmat Fitrianto, Taufik Ramadhan Gustiarini Rika Putri Nadya Rishelin Viky Kurnia Putri Yessi Nasia Ulfia