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All Journal Rekayasa Mesin Jurnal Teknologi Dirgantara Piston: Journal of Technical Engineering Jurnal Ilmiah Teknik Mesin Poros Mechanical Engineering for Society and Industry Recent in Engineering Science and Technology Indonesian Journal of Aerospace
Danardono Agus Sumarsono
Departemen Teknik Mesin, Universitas Indonesia
Aerospace Engineering Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Experimental study on a new prototype design of electric bus vehicle structure under torsion loading conditions Haryanto, Budi; Sumarsono, Danardono Agus; Karmiadji, Djoko Wahyu; Adhitya, Mohammad; Kristianto, Stevanus Brian; Deprian, Lukyawan Pama
Mechanical Engineering for Society and Industry Vol. 5 No. 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.13559

Abstract

Vehicles commonly encounter uneven road conditions, which can lead to torsional deformation of the frame structure. The results of finite element analysis (FEA) indicate that the highest stress occurs under torsion loading conditions. To validate these simulation results, an experimental study was conducted involving static load testing under torsional loading conditions on a hybrid frame structure, composed of SS 400 carbon steel and 6061 aluminum alloy, designed for a 70-passenger electric bus. The test was performed by applying a static load of 6,825 kg as sandbags on the seating area and aisle, and supporting the frame on three wheels only. Strain measurements were recorded using 28 strain gauges: 20 on the SS 400 carbon steel underframe and 8 on the 6061 aluminum alloy structure of the side and roof frames. The total load was the weight of 70 passengers plus a 30% dynamic load factor. Experimental analysis revealed a maximum stress value of 76.42 MPa in the SS 400 carbon steel of the underframe at location 9 in the central section of the underframe. In the 6061 aluminum alloy structure, the maximum stress value of 15.56 MPa was obtained in the roof frame directly below the air conditioner unit. Overall, the measured stress values were within the elastic ranges of the materials used, demonstrating structural integrity under load. The average difference between the experimental results for stress and the finite element analysis (FEA) simulation was approximately 11.21%.
Co-Authors Agustinus Purna Irawan Artana, I Nyoman Aryandi Marta Barkah Fitriyana Budi Haryanto Deprian, Lukyawan Pama Dony Hidayat Edward Suhartono Fuad Zainuri G Soeharsono Hidayat, Dony Hidayat, Kurnia Huda, Mahfudz Al Jan Antonius Jos Istiyanto Karmiadji, Djoko Wahyu Kristianto, Stevanus Brian Marta, Aryandi Mohammad Adhitya, Mohammad Muhammad Hidayat Tullah Muhammad Ridwan Mustasyar Perkasa Rahmat Noval Rahmat Subarkah Sonki Prasetya Tia Rahmiati Utama, Didi Widya Wahyu Sulistiyo Widiyatmoko widi Yudi Irawadi