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All Journal Rekayasa Mesin International Journal of Science, Engineering and Information Technology
Yusron, Rifky
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Applying ISO:31000:2018 as Risk Management Strategy on Heavy Machinery Vehicle Division Wicaksono, Ananto Yusuf; Yusron, Rifky
International Journal of Science, Engineering, and Information Technology Vol 4, No 2 (2020): IJSEIT Volume. 04 Issue. 02 JULY 2020
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.327 KB) | DOI: 10.21107/ijseit.v4i2.6871

Abstract

The operation of heavy machinery vehicles and extensive project site areas are constrained in a general contractor services business, they need risk management to overcome obstacles that interfere project.. Transporting heavy machinery vehicles from one project location to another project site using low bed movers have a risk. Ideal condition for company heavy machinery vehicle with minimum transport. Despite their completion to represent low budget to manage project, it mitigation time, embarkation and debarkation is a challenge too. The aim of this research is to observe level of effectiveness in applying ISO 31000:2018 risk management standard in heavy machinery operations. We apply expert judgment in risk assessment techniques using questioner. This was distributed to respondents who had experience operating heavy machinery vehicles for at least 3 years. Heavy machinery vehicle operators must have enough experience and maintenance of heavy machinery just conduct routinely based on a manual book. From the results of risk identification,  there are 20 risks. Based on the results of the risk assessed from probability and impact variables, damaged risk to the undercarriage parts (R12)  as a top priority treatment risk. Risk management will be identified as mitigation strategies based on 5 aspects. They are avoided risk, risk control, separating risk, moving risk and accepting risk. Results of identification from treatment strategies will be assessed based on mitigation duration and mitigation costs, to find out the most optimal strategy for dealing with these risks. It can concluding assessment of risk management strategies well, if mitigation strategies separate risks. is the most optimal mitigation strategy.
STRUCTURAL ANALYSIS OF THE PASSENGER NT-60 BOGIE WAGON BOGIE TYPE Yusron, Rifky; Bisono, Rahayu; Aziz R , M. Shafwallah Al.; Arifin , Agus Choirul
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.1806

Abstract

The welded bogie railway was typically exposed to very intricate fatigue loads, resulting in a significant risk of failure. However, most standards only took into account external excitations from wheel-rail system when evaluating fatigue performance. NT-60 was a common bogie train fleet in Indonesia because it manufactured in the only company then supply to the largest train operator in Indonesia. The 2x3 general linear model factorial was applied as design of experiment, load tests and static test was set as independent variable, each loading had three levels: 18, 19, and 20 tons was conducted in three replications. Strain of bogie were detected using strain gauge type LY-11 and stress using linear variable displacement transducer, all set on load test bogie tester machine. This research focuses on knowing the load type and load variables bogie to displaying which variables affect the stress on the bogie, whereas previous research only focused on the stress results caused by the load. Factorial design of experiments provided a detailed characterization of strain and stress under varying load conditions, delivering an accurate and systematic approach to show relationship between stress and strain. The lowest average strain of 0.02 mm occurred in vertical load test with a loading of 18 tonnes at first replication. In this combination, there was also a stress of 7 N/mm². The highest strain experienced by NT-60 bogie was 0.21 mm in the horizontal load with a loading of 20 tonnes at first replication. In this condition, a stress of 44.1 N/mm² occurred.
Analysis Of Load Variations On ST 60 Steel Using Vickers Method Hidayat, Hidayat; Jufriyanto, Moh.; Ningtyas, Alviani Hesthi Permata; Yusron, Rifky
International Journal of Science, Engineering, and Information Technology Vol 5, No 1 (2020): IJSEIT Volume. 05 Issue. 01 DECEMBER 2020
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/ijseit.v5i1.8940

Abstract

The use of metal in the industrial world, especially ST60 Steel, is a very vital need, this can be seen from the increasing number of machine or equipment components or construction parts made of steel. Hardness is one of the mechanical properties that is often used as a guide in selecting materials for an equipment component. To find out the hardness price of a material, various testing methods can be used, including the Vickers method, which is tested by applying a force to the indented diamond pyramid against the material for which the hardness value is determined. The amount of hardness value is determined by the magnitude of the loading force divided by the area of indentation. In this study, what was investigated was the effect of force on the hardness of the Vickers method. The results showed that the load variation had little effect on the results of the Vickers hardness value, especially for high loads (100 Kgf). The average hardness value for the mild steel being tested is 163 HV and 168 HV, the highest hardness value is 174 HV and the lowest hardness value is 156 HV, so that a tolerance of ± 10 HV commonly used in the Vickers test is sufficient.Keywords: Hardness, ST 60 Steel , Loading Variations, Vickers Test
Co-Authors Arifin , Agus Choirul Bisono, Rahayu Hidayat Hidayat Moh. Jufriyanto Ningtyas, Alviani Hesthi Permata Raden Mohamad Herdian Bhakti Wicaksono, Ananto Yusuf