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Graciadiana. I. Huka
Jurusan Mesin, Politeknik Negeri Ambon
Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Kuantitatif Pengaruh Getaran Mesin Terhadap Umur Fatik Struktur Rangka Dump Truck Kapasitas Besar Pada Kondisi Pembebanan Dinamis Frederik Demmatacco; Nevada Nanulaitta; Graciadiana I Huka
Journal Mechanical Engineering Vol. 4 No. 1 (2026): APRIL
Publisher : Department of Mechanical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/jme.v4i1.4019

Abstract

Large-capacity dump truck operations in mining environments generate cyclic dynamic loads originating from engine vibration, uneven haul road surfaces, and inertial forces from acceleration and braking, which potentially trigger fatigue damage accumulation in the vehicle chassis frame structure. This study aims to characterize the engine vibration spectral profile, map the dynamic stress distribution at critical frame zones, and quantitatively assess the contribution of engine vibration to fatigue life prediction in an integrated manner. The methodology integrates three primary approaches, namely in-situ vibration measurement based on Power Spectral Density analysis, frequency-domain Finite Element Analysis simulation, and fatigue life prediction utilizing rainflow counting combined with Miner's Rule. Measurement results reveal a peak Power Spectral Density value of 0.0842 g²/Hz under full-load conditions at 2,100 RPM. Numerical simulation confirms a maximum von Mises stress of 487 MPa at the front cross member welded joint, exceeding the material fatigue limit of 310 MPa. Fatigue life prediction at the most critical point reaches approximately 11,494 operational hours, with engine vibration contributing 38.6% of the total accumulated damage. These findings establish engine vibration as the second largest determinant of chassis structural degradation, making engine mounting system optimization and remaining fatigue life-based predictive maintenance the primary recommendations of this research. Keywords: engine vibration; fatigue life; finite element analysis; Miner's Rule; mining dump truck
Co-Authors Annafiyah Annafiyah Auliana Diah Wilujeng Berthy Pelasula Berthy Pelasula Cindy Gabriel Maitimu Denny Ismail Pellu Erwin B Pattikayhatu F Demmatacco Frederik Demmatacco H. S. Latumaerissa Hendry de Fretes Ida Ayu Putu Sri Widnyani Imam A Hanifah Josef Matheus Josef Matheus Josef Matheus Jovancko. S. S. Picanussa Julian Salakory Kayadoe, Yuliens Anggin Lasamahu, Stevanno B D Lekatompessy, Roy R Leslie S. Loppies Loppies, Leslie S Maitimu, Cindy Gabriel Nevada J. M. Nanulaitta Nevada JM. Nanulaitta Nevada Nanulaitta Nevada. J. M. Nanulaitta Nevada. JM Nanulaitta Pattikayhatu, Erwin Bravor Pellu, Denny Ismail Picanussa, Jovancko. S. S. R.R Lekatompessy R.R. Lekatompessy Ratna Ayu Pawestri Kusuma Dewi Roy R Lekatompessy Sanny Hahury Sanny Hahury, Sanny Semuel M.J.S Tuny Stevanno B D Lasamahu Yuliens Anggin Kayadoe