Articles
<![CDATA[Desain Material Sweeper Untuk Kendaraan Penghisab Debu Vulkanik ]]>
<![CDATA[Wikan Sakarinto]]>;
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Andi Pratama]]>;
<![CDATA[Putri Chairany]]>
<![CDATA[ Jurnal Nasional Teknologi Terapan (JNTT) Vol 2, No 2 (2018): JULI ]]>
Publisher : <![CDATA[Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada ]]>
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DOI: 10.22146/jntt.42720
<![CDATA[In overseas, the road sweeper have been producted. But, the expensive of import tax will befundamental problem for realisation the road sweeper from the overseas. The goal of this observationis making the the road sweeper which will be raised the amout in the future according UGM needed.And the part of the road sweeper is the sweeper itself. The problem which has been observated isgiving the proper testing for steel wire as the based material in making a sweeper. Because of that,for knowing the proper testing in the steel wire, then doing observation which has given a differenttreatment. As the component which has the work with lots of friction, so the sweeper must have highhardness, high wear resistance, and high tensile strength. Based on the result of spectrometer analiticreport which was did in science and accelerator technology laboratory- BATAN. Based on the resultpicture of micro sweeper structur observation with material stainless steel in litterature has asimilarity with the picture of austenite and ferrite micro structure which has several overages,especially in strength and high resistance to intergranular corrosion.]]>
<![CDATA[Application of Ant Colony Optimization for the Shortest Path Problem of Waste Collection Process ]]>
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Radhian Krisnaputra]]>;
<![CDATA[Irfan Bahiuddin]]>
<![CDATA[ Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vo. 6, No. 3, August 2021 ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Malang ]]>
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DOI: 10.22219/kinetik.v6i3.1307
<![CDATA[The search for the shortest path of the waste collection process is an interesting topic that can be applied to various cases, from a very practical basic problem to a complex automation system development. In a dense settlement, the waste collection system can be a challenging process, especially to determine the most optimized path. The obstacles can be circling streets, impassable roads, and dead-end roads. A wrong choice of method can result in wasteful consumption of energy. A possible method to solve the problem is the traveling salesman problem using ant colony search optimization, considering its relatively fast optimization process. Therefore, this paper proposes an application of ant colony and traveling salesperson problem in determining the shortest path of the waste collection process. The case study for the optimization algorithm application is the path UGM Sekip Lecturer Housing is considering. Firstly, the data was collected by measuring the distance between points. Then, the paths were modeled and then compared with the actual route used by waste transport vehicles. The last step is implementing the ant colony optimization and traveling salesman problem by determining the cost function and the parameters. The optimization process was conducted several times, considering the random generator within the algorithm. The simulation results show the probable shortest path with a value of about 752 meters so that the use of fossil fuels in waste transport vehicles can be more efficient. The results show that the algorithm can automatically recommend the minimized path length to collect waste.]]>
<![CDATA[Elastic Recovery Permukaan UHMWPE Berpasangan dengan Baja Tahan Karat 316L, Kobalt Khrom dan Titanium ]]>
<![CDATA[Budi Basuki]]>;
<![CDATA[Andhi Akhmad Ismail]]>
<![CDATA[ Jurnal Engine: Energi, Manufaktur, dan Material Vol 3, No 2 (2019) ]]>
Publisher : <![CDATA[Proklamasi 45 University ]]>
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DOI: 10.30588/jeemm.v3i2.587
<![CDATA[Ultra High Molecular Weight Polyethylene (UHMWPE) is a biomedical polymer applied for orthopedic as hip, knee, ankle and lumbar disc implants. The use of this material is common as a joint component paired with metallic biomaterials such as 316L stainless steel (SS 316L), cobalt chrome alloy (CoCr) dan titanium. This application has a wear problem. UHMWPE implants are commonly made with machining processes, i.e. lathe and milling. The effect of machining is the surface roughness of implant products. Polymer highly elastic in which would induce the deformation of surface asperities during loading and unloading. This phenomenon is determined with a parameter called elastic recovery. The magnitude of elastic recovery relates to the wear of the polymer. This research numerically investigated the effect of metallic biomaterial types on the UHMWPE elastic recoveries. Those metals are CoCr, SS 316L, and titanium. Two-dimensional surface asperity models were loaded with physiological gait loads of hip and knee. Results from computational works showed an insignificant difference of UHMWPE elastic recoveries penetrated by the studied metals. Elastic recovery due to SS 316L with knee gait load is 55.19%, equal to CoCr while other results due to titanium are slightly higher, 55.224%. The difference for all metals is only 0.06 %. Contact pressures are also equal, 38.96 MPa (CoCr), 38.98 MPa (316L and titanium).]]>
<![CDATA[Penerapan Algoritma Ant System dalam Menemukan Jalur Optimal pada Traveling Salesman Problem (TSP) dengan Kekangan Kondisi Jalan ]]>
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Samiadji Herdjunanto]]>;
<![CDATA[Priyatmadi]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 3: Agustus 2012 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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<![CDATA[The completion of Traveling Salesman Problem (TSP) is to find the shortest path to visit all of the cities. With the shortest path, it is expected that the travel time will also be shorter. In fact, when a salesman visits all of the cites in his list, he will find obstacles such as poor road conditions, congestion, damaged roads, or other constraints. Therefore, although the shortest path has been established, if there is an obstacle the travel time to all cities will be longer. One way to solve the TSP is by ant algorithm. The modifications were made to the Ant System by providing constraint pheromone to each road which could not be passed and also gave a long distance to the roads that should not be passed. The results of this study indicate that the ants never pass constrained sections, for square grid data also two data from TSPLIB95. This occurs because the segments were given constraints, the pheromone were weighted 0 and given the longest distance.]]>
<![CDATA[Perancangan Mekanisme Pengaduk Kompos Sampah Organik dengan CAD/CAE ]]>
<![CDATA[Budi Basuki]]>;
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Sugiyanto]]>;
<![CDATA[Dani Anggoro Hasan]]>;
<![CDATA[Muhammad Alif]]>
<![CDATA[ Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 2 (2024) ]]>
Publisher : <![CDATA[Proklamasi 45 University ]]>
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DOI: 10.30588/jeemm.v8i2.2000
<![CDATA[The management of organic waste into compost is one of the important solutions in an effort to reduce the negative impact of organic waste on the environment. A compost mixer is one of the technologies that can be used to speed up the process of decomposing and forming compost from organic waste. This research aims to continue previous research that has succeeded in making organic waste shredding machines. The methods used in this study include a literature survey on the basic principles in organic waste management, available technologies, and the design of stirring machine mechanisms that have been carried out previously. Based on the literature analysis, some factors in the design of the compost mixer machine are the material and shape of the composting blade, adequate construction strength, the need for sufficient rotation to achieve organic waste homogenization, and the ease of operation and maintenance. The design process utilizes CAD/CAE software to compile 3D models and simulate various operational conditions. The result of this research is the design of an efficient compost mixing machine mechanism. In addition, special attention is paid to the selection of materials and the shape of the stirring blades that are resistant to wear and corrosion. This design also takes into account the ease of access for routine cleaning and maintenance.]]>
<![CDATA[Pengujian Tungku Pembakar Sampah Minim Asap ]]>
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[I Aris Hendaryanto]]>;
<![CDATA[Budi Basuki]]>
<![CDATA[ Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025) ]]>
Publisher : <![CDATA[Universitas Proklamasi 45 ]]>
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DOI: 10.30588/jeemm.v9i2.2448
<![CDATA[Waste refers to residual materials resulting from various human daily activities or natural processes that exist in solid form. In general, the term waste denotes unwanted materials or substances considered to have lost their usefulness after a certain activity or domestic process has been completed. To date, waste management efforts in many regions have not yet achieved optimal results. The level of public awareness and concern regarding environmental issues related to waste also varies significantly, making this issue an urgent environmental challenge that requires immediate attention and solutions. This study focuses on testing the effectiveness of waste treatment methods through the combustion process. The main objective is to determine the concentration levels of carbon monoxide (CO) and other hazardous gases generated during combustion, as well as to evaluate the performance of a waste incineration machine designed to produce low-smoke emissions. Gas concentration measurements were conducted using gas detection sensors integrated with an Arduino-based microcontroller system. The research approach combines both qualitative and quantitative methods. The qualitative aspect involves reviewing and comparing previous research findings, while the quantitative approach is carried out through direct measurements using a self-designed measuring instrument. This study is part of an ongoing research program aimed at developing a Low-Smoke Waste Incinerator Machine. Preliminary results indicate that the effectiveness level of the waste incinerator remains relatively low. This condition is attributed to the high concentrations of harmful exhaust gases such as carbon monoxide (CO), nitrogen oxides (NOx), and sulfur dioxide (SO₂) produced during the combustion process. In addition, the design of the incinerator has not yet reached optimal efficiency, as reflected by the persistently high NOx and SO₂ emissions. Therefore, more precise calibration of the gas sensors is required to ensure that the measurement data obtained accurately represent the actual concentrations of combustion gases.]]>
<![CDATA[Pengembangan Alat Pembakar Sampah Portabel untuk Pengelolaan Sampah Mandiri ]]>
<![CDATA[Ignatius Aris Hendaryanto]]>;
<![CDATA[Budi Basuki]]>;
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Dani Anggoro Hasan Hasan]]>;
<![CDATA[Y. Bayu Triswantoko]]>;
<![CDATA[Rudy Hermawan]]>;
<![CDATA[Dany Setyawan]]>;
<![CDATA[Hari Setiyo Utomo]]>
<![CDATA[ Jurnal Engine: Energi, Manufaktur, dan Material Vol. 10 No. 1 (2026) ]]>
Publisher : <![CDATA[Universitas Proklamasi 45 ]]>
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DOI: 10.30588/jeemm.v10i1.2463
<![CDATA[Suboptimal household waste management remains a problem in various regions. Waste is generally disposed of in landfills (TPA) or burned openly, both of which have negative impacts on the environment. Open burning of waste produces air pollution in the form of carbon monoxide, dioxins, and fine particles that are harmful to health. Therefore, this study aims to design and manufacture a portable, smoke-free waste incinerator as an alternative solution for independent waste management. The research methods used include literature review, design using CAD software, component fabrication, tool assembly, and functional testing. This tool is designed with a combustion system in a furnace with controlled air flow to optimize the combustion process and reduce smoke emissions. The result of this study is a prototype of a portable waste incinerator that is easy to move. Based on the results of functional tests and visual observations, this waste incinerator can burn dry leaves, with the condition that there is still quite a lot of smoke at the beginning of the combustion and the smoke puffs are significantly reduced as the flame grows.]]>
<![CDATA[Analisis Downtime Engine Motor Grader XCMG GR3005T Pro Menggunakan Metode Reliability Centered Maintenance II (RCM II) Dan Failure Mode And Effect Analysis (FMEA) ]]>
<![CDATA[Muhammad Arkan Adelard Arkan]]>;
<![CDATA[Nyayu Aisyah]]>;
<![CDATA[Lilik Dwi Setyana]]>;
<![CDATA[Andhi Akhmad Ismail]]>
<![CDATA[ Jurnal Teknologi dan Rekayasa Alat Berat Vol 3 No 01 (2026): JTRAB Volume 3, No 1, 2026 ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, Vocational College, Gadjah Mada University. ]]>
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DOI: 10.22146/jtrab.v3i01.22225
<![CDATA[The evaluation of engine system downtime in the XCMG GR3005T Pro motor grader was conducted using the Reliability-Centered Maintenance II (RCM II) and Failure Mode and Effects Analysis (FMEA) methods. Failure data and maintenance history from February 2023 to November 2024 were utilized to identify failure modes, calculate Risk Priority Number (RPN) values, and formulate appropriate maintenance actions. A total of 63 failure modes were identified across 23 engine components, with the Solenoid Fuel Supply Pump exhibiting the highest RPN value (126). Four major components were classified as critical components, namely the Solenoid Fuel Supply Pump, Oil Pump, Fuel Supply Pump, and Water Pump. The recommended maintenance strategies include Scheduled On-Condition Tasks and Scheduled Discard Tasks, determined based on the RCM II Decision Diagram evaluation. This approach is intended to reduce downtime, enhance engine system reliability performance, and maximize equipment availability.]]>
<![CDATA[Perancangan dan Pembuatan Vessel dengan Double Cylinder pada Unit Electric Road Sweeper ]]>
<![CDATA[Ridha Ikhsan]]>;
<![CDATA[Sugiyanto Sugiyanto]]>;
<![CDATA[Andhi Akhmad Ismail]]>;
<![CDATA[Robertus Tirta Kuncoroadi]]>
<![CDATA[ Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 1 (2024): JTRAB Volume 1, No 1, 2024 ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, Vocational College, Gadjah Mada University. ]]>
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DOI: 10.22146/jtrab.v1i1.8708
<![CDATA[The electric road sweeper developed by the Mechanical Engineering Department of the Gadjah Mada University Vocational School can handle waste management problems. To improve sweeper performance, several changes are still required in the unit, especially in the sweeper vessel section. In an effort to improve sweeper performance, vessel design is needed. Design and performance analysis of vessels using Autodesk Inventor software. In this research, the addition and replacement of hydraulic cylinder types was carried out to make it a transport vehicle. Apart from that, the use of lighter materials also reduces the weight of the vessel from 650 kg to 278.95 kg. The simulation results show that all vessel sweeper components have a safety factor above one, indicating that they are safe to use. Apart from that, this design is able to withstand loads of up to 4900 N without exceeding the yield strength limit of the material used by the vessel. The maximum inclination of the sweeper vessel is 30.4 degrees. Hydraulic cylinder testing shows an extend speed of 11.77 m/s and a retract speed of 7.9 m/s. Under 100 kg load conditions, the extend speed becomes 12.49 m/s and the retract becomes 8.39 m/s, the retract movement is faster due to gravity.]]>
<![CDATA[Rancang Bangun Sistem Peringatan Pendeteksi Halangan Gerak Swing Pada Swing Area Berbasis Arduino Uno dengan Sensor Ultrasonik Untuk Excavator ]]>
<![CDATA[Herbudi Bagas Anyuca]]>;
<![CDATA[Andhi Akhmad Ismail]]>
<![CDATA[ Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 2 (2024): JTRAB Volume 1, No 2, 2024 ]]>
Publisher : <![CDATA[Department of Mechanical Engineering, Vocational College, Gadjah Mada University. ]]>
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DOI: 10.22146/jtrab.v1i2.11917
<![CDATA[Occupational health and safety, especially in heavy equipment projects, is very important to avoid work accidents. In the field of construction and mining, work accidents that are often experienced are usually run over, and hit. Most of these accidents are caused by operator or human negligence factors, as well as factors from machines or tools. On the hydraulic excavator there is a swing movement, this movement has the potential to cause work accidents such as hitting an object in the swing area because the object is in blind spots that cannot be measured and seen by the operator. In this study, the authors designed a tool that functions as a warning system and monitoring for detecting swing motion obstacles in the swing area to avoid the accident, while testing the performance of the system that has been created. The design of this tool uses an ultrasonic sensor HC SR-04 which is able to detect an object with ultrasonic waves, LCD 1602 as a monitoring tool for the distance between the sensor and the object that blocks the swing motion, and with the addition of a buzzer as a warning system that will sound at a certain distance. Thus the operator can anticipate if there are objects that block the swing motion. The overall test results of the system that has been created show that the front section obtained a test success rate of 84% with a standard deviation of 0.3116, and the back section obtained a test success rate of 86% with a standard deviation of 0.2916.]]>
