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All Journal Infotekmesin Accurate: Journal of Mechanical Engineering and Science
Unggul Satria Jati
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Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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APLIKASI CVT PADA SEPEDA MOTOR LISTRIK (SEMOLI) GENERASI 2 Girawan, Bayu Aji; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati
Accurate: Journal of Mechanical Engineering and Science Vol. 5 No. 2 (2024): October 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v5i2.2547

Abstract

The trend of using electric motorbikes to drive two-wheeled vehicles in Indonesia has started to increase. This is because the increasing public awareness of the benefits of electric vehicles is linked to the decreasing fossil energy reserves. Apart from that, electric vehicles are an environmentally friendly means of transportation because they do not cause air pollution. Based on previously research SEMOLI Generation 1, it is known that the use of a sprocket and chain transmission model on electric motorbikes produces less than optimal performance when used on flat roads, because on flat roads there is no need for large torque. The aim of this SEMOLI Generation 2 research is to conduct experiments using a CVT transmission which is predicted to be able to provide large torque when the road conditions are uphill, and able to provide higher speeds when the road conditions are flat. The research stages carried out successively are: conducting studies, selecting transmissions, assembling, fabricating, designing frames and swing arms, testing, and preparing documents. Based on the test results, it was found that using a CVT was able to increase maximum speed on both horizontal and uphill road conditions. This increase is because CVT has a wide transmission comparison range, so it is able to overcome uphill and horizontal road conditions.
Analisa Pengukuran Ketebalan Steel Block, Aluminium Block dan Steel Plate Menggunakan Ultrasonic Thickness Gauge Ulikaryani, Ulikaryani; Unggul Satria Jati; Radhi Ariawan; Dian Prabowo; Sabtun Ismi Khasanah; Hamid Abdillah
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2583

Abstract

Thickness measurement using an ultrasonic sensor is a type of non-destructive test (NDT) that is commonly used in various industries. Measurement of thickness (thickness) on steel blocks, aluminum blocks and steel plates using an ultrasonic thickness gauge. The method used is the contact testing method which is then compared with manual measurements. Based on data analysis from the measurement results, it was found that the thickness with the highest percent error was in the Steel S3 sample, namely 93.87%. Meanwhile, the thickness measurement with the lowest percent error in the Steel plate sample was 0%. Meanwhile, for measuring the dimensions of artificial corrosion defects, the smallest error percentage obtained was 0% for several dimensions, with the average measurement error obtained being 22.82%. The profile shape of the detected artificial corrosion defects is exactly the same as the reference profile. So, measuring the thickness of steel blocks, aluminum blocks and steel plates as well as measuring artificial corrosion defects located in steel plates can be detected well and the measuring results can be trusted.
Analisis Hasil Uji Tarik dan SEM pada Obyek Cetak 3D dari Filamen Limbah Plastik PET Tri Hannanto Saputra; Ariawan, Radhi; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati; Dikky Kusuma Wijaya
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2577

Abstract

3DPrinting filament from PET plastic bottle waste is one appropriate solution to overcome PET plastic waste. This research aims to develop a PET plastic bottle waste recycling method using extrusion technology into 3DPrinting filament. The filament formed is used in the printing process using a 3DPrinting FDM machine. The printed object specimens were Dogbone ASTMD638 Type V. Previous research used tensile test and macroscopy photography methods to observe the tensile strength. This research used filament-making, tensile test, and SEM test methods. This research showed that PET plastic bottle waste can be recycled into 3DPrinting filaments. Based on the tensile test result, the average maximum tensile stress from lowest to highest in the sequence was 7.4 MPa, 12.4 MPa, and 14.9 MPa. The type of fracture that occurred in the specimen with the highest maximum tensile strength was a brittle fracture.
Analisis Kinematik Singularty Pada Manipulator 7 DOF Dengan Software Simulasi ROBOAnalyzer Nur Akhlis Sarihidaya Laksana; Radhi Ariawan; Unggul Satria Jati; Jenal Sodikin; Ulikaryani
Infotekmesin Vol 13 No 2 (2022): Infotekmesin: Juli, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i2.1538

Abstract

Studies related to manipulators are still being carried out, along with the times and needs. Utilization in manufacturing and fabrication has led to the development of many manipulators. Smooth, fast, and accurate movement continue to be developed. In the case of the multi manipulator, 7 DOF (Degree of Freedom) is a type of manipulator that has special features in terms of joints. Inverse kinematic is a parameter used to control the orientation and movement of the manipulator. 7 DOF has three singularity wrist, elbow, and shoulder. In the simulation, each singularity produces an inverse kinematic matrix which is used to control the movement of the manipulator. The method used is to determine the angle of motion of the joint (continues joint angel) with simulation to produce calculations that are fast, precise, accurate, and stable. The target of each joint with the theta value that has been determined by the singularity was successfully carried out with an error of 0%.
Analisis Hasil Uji Tarik dan SEM pada Obyek Cetak 3D dari Filamen Limbah Plastik PET Tri Hannanto Saputra; Ariawan, Radhi; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati; Dikky Kusuma Wijaya
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2577

Abstract

3DPrinting filament from PET plastic bottle waste is one appropriate solution to overcome PET plastic waste. This research aims to develop a PET plastic bottle waste recycling method using extrusion technology into 3DPrinting filament. The filament formed is used in the printing process using a 3DPrinting FDM machine. The printed object specimens were Dogbone ASTMD638 Type V. Previous research used tensile test and macroscopy photography methods to observe the tensile strength. This research used filament-making, tensile test, and SEM test methods. This research showed that PET plastic bottle waste can be recycled into 3DPrinting filaments. Based on the tensile test result, the average maximum tensile stress from lowest to highest in the sequence was 7.4 MPa, 12.4 MPa, and 14.9 MPa. The type of fracture that occurred in the specimen with the highest maximum tensile strength was a brittle fracture.
Analisa Pengukuran Ketebalan Steel Block, Aluminium Block dan Steel Plate Menggunakan Ultrasonic Thickness Gauge Ulikaryani, Ulikaryani; Unggul Satria Jati; Radhi Ariawan; Dian Prabowo; Sabtun Ismi Khasanah; Hamid Abdillah
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2583

Abstract

Thickness measurement using an ultrasonic sensor is a type of non-destructive test (NDT) that is commonly used in various industries. Measurement of thickness (thickness) on steel blocks, aluminum blocks and steel plates using an ultrasonic thickness gauge. The method used is the contact testing method which is then compared with manual measurements. Based on data analysis from the measurement results, it was found that the thickness with the highest percent error was in the Steel S3 sample, namely 93.87%. Meanwhile, the thickness measurement with the lowest percent error in the Steel plate sample was 0%. Meanwhile, for measuring the dimensions of artificial corrosion defects, the smallest error percentage obtained was 0% for several dimensions, with the average measurement error obtained being 22.82%. The profile shape of the detected artificial corrosion defects is exactly the same as the reference profile. So, measuring the thickness of steel blocks, aluminum blocks and steel plates as well as measuring artificial corrosion defects located in steel plates can be detected well and the measuring results can be trusted.
APLIKASI CVT PADA SEPEDA MOTOR LISTRIK (SEMOLI) GENERASI 2 Girawan, Bayu Aji; Nur Akhlis Sarihidaya Laksana; Unggul Satria Jati
Accurate: Journal of Mechanical Engineering and Science Vol. 5 No. 2 (2024): October 2024
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v5i2.2547

Abstract

The trend of using electric motorbikes to drive two-wheeled vehicles in Indonesia has started to increase. This is because the increasing public awareness of the benefits of electric vehicles is linked to the decreasing fossil energy reserves. Apart from that, electric vehicles are an environmentally friendly means of transportation because they do not cause air pollution. Based on previously research SEMOLI Generation 1, it is known that the use of a sprocket and chain transmission model on electric motorbikes produces less than optimal performance when used on flat roads, because on flat roads there is no need for large torque. The aim of this SEMOLI Generation 2 research is to conduct experiments using a CVT transmission which is predicted to be able to provide large torque when the road conditions are uphill, and able to provide higher speeds when the road conditions are flat. The research stages carried out successively are: conducting studies, selecting transmissions, assembling, fabricating, designing frames and swing arms, testing, and preparing documents. Based on the test results, it was found that using a CVT was able to increase maximum speed on both horizontal and uphill road conditions. This increase is because CVT has a wide transmission comparison range, so it is able to overcome uphill and horizontal road conditions.
Co-Authors Dian Prabowo Dikky Kusuma Wijaya Girawan, Bayu Aji Hamid Abdillah Jenal Sodikin Nur Akhlis Sarihidaya Laksana Radhi Ariawan Sabtun Ismi Khasanah Tri Hannanto Saputra Ulikaryani Ulikaryani, Ulikaryani