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All Journal JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) JURNAL PENDIDIKAN TAMBUSAI Jurnal Abdi Insani Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Teknomekanik Jurnal Vokasi Mekanika Journal of Community Service Tsaqofah: Jurnal Penelitian Guru Indonesia ALSYS : Jurnal Keislaman dan Ilmu Pendidikan MASALIQ: Jurnal Pendidikan dan Sains ARZUSIN: Jurnal Manajemen dan Pendidikan Dasar Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Asian Journal of Science, Technology, Engineering, and Art

Purwantono, Purwantono

Unknown Affiliation

Author-ID : 1412658

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

Published : 33 Documents Claim Missing Document

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Study of Ship Design Maninjau Lake Tourism by Using Catamaran Hull Type and Fiberglass Material Trisyaldi, Ar; syahril, syahril; Purwantono, Purwantono; Waskito, Waskito; Primawati, Primawati
Teknomekanik Vol. 2 No. 1 (2019): Regular Issue
Publisher : Universitas Negeri Padang

Maninjau lake uses ships designed in a simple way without significant innovation from time to time. This case is caused by design methods that are based on hereditary knowledge from generations to generations, so that the ships that are made tend to have the same shape and size. Innovation is needed to get a higher level of efficiency and effectiveness on a ship. The innovation that needs to be done is the design of ships with a multi-hull shape or catamaran. The pre-design of the catamaran hull is based on using the comparation method as the dimension ratio of the ship, so that the dimensions of the ship are LWL = 4 m; LPP = 3.96 m; B = 1.7 m; B1 = 0.36 m; D = 0.7 m; d = 0.307 m. After that, testing the resistance (resistance) while determining the amount of Power needed. The next step is to analyze Stability and Seakeeping to determine the efficiency and effectiveness of the hull type. Analysis carried out on this type of hull was applied to several models, then the best hull design was found. Each design is distinguished by hull shape, but has the same displacement which is equal to 0.448 tons. The first model of the catamaran hull with the type of Flat Inside Symmetry; second with the type of symmetry Flat Outside; and the third type with gastric Asymmetry.

Welding Competence Training at Dropout Youth Refdinal, Refdinal; Ardi, Junil; Purwantono, Purwantono
Teknomekanik Vol. 2 No. 1 (2019): Regular Issue
Publisher : Universitas Negeri Padang

The problem with partners is drop out youth who do not have competence. The condition of the community dropping out of school and working as unskilled labourers has an impact on the low level of public welfare. The distance between the Dharmasraya district and the provincial capital has an impact on the contrast of the quality of education carried out which causes the community to not understand the importance of education. So that some of the human resources in Dharmasraya have become manual labourers in plantations and factories. The purpose of implementing this service activity is to provide a solution to the problems faced by the community, especially for school dropouts. Most of the dropout youths who are junior high school (SMP) level do not have special competencies that make them have added value. The work carried out by this young man is only limited to gardening and does not guarantee economic prosperity. Through this service activity, TIM strives to provide competency in the welding field that can be used to open a business that is much needed by the community. The training activities were designed for 3 days which will be held from October 12 to October 14 2018. The speakers in this activity were Drs. Purwantono, M.Pd, who has a BNSP level I welding certificate and the second speaker is Junil Adri, M.Pd.T who has a BNSP level III welding certificate. On the first day, the speaker will convey the basic concepts in the welding process and demonstrate how to make weld grooves and connect the plate in the welding process. On the second day, the speakers began to invite participants to design products that could be made through welding activities in accordance with the needs of the community. In this activity, TIM directed to make a trellis fence. TEAM began to guide participants in the process of making a trellis. On the third day, the TEAM provided direction on how to weld entrepreneurial opportunities in the field. The chairperson of the service with TIM asked the kenagarian to be able to accommodate the birth of new entrepreneurs for youth who could make independent and productive people.

Performance test of Pikohidro Cross flow Water Turbine using multilevel double penstock Purwantono, Purwantono; Amin, Bahrul; Aziz, Abdul; Jasman, Jasman; Kurniawan, Andre
Teknomekanik Vol. 2 No. 2 (2019): Regular Issue
Publisher : Universitas Negeri Padang

This study aims to examine the performance of pico hydro scale cross flow water turbines using multilevel double penstock as a conductor of water flow. Multilevel double penstock is used to reduce the transportation process from highways that are affordable to four-wheeled vehicles / cars to the location of the installation of the turbine. This condition causes the need for small-scale water turbine designs with lightweight construction with a kock down system. Overall the picohidro scale turbine construction is needed relatively cheaper transportation costs, so that people who have not been reached by the PLN network can be touched by small and cheap electricity. Turbine construction data has a runner diameter of 170 mm, body dimensions 200 mm x 300 mm x 250 mm, frame 250 mm x 800 mm. Pool tando 600 mm x 1200 mm and penstock length 16m. The power produced is theoretically around 2500 watts, with a data flow of 50 liters / second and a water level of 8 m. 65% efficiency. The research method is analyzing the double penstock water flow, by making paralon pipes in stages, ranging from 5 incci diameter, 4 inches and 3 inches, flow analysis approach using a gradient line, where the incoming water velocity and water velocity come out until entering the transmitting pipe. The performance results of this turbine provide an average actual power of up to 2000 watts. The stability of the inlet water condition is used by the Tando pond as a water bath. If there is excess water in the sediment tank, the water gate is used out, where excess water will automatically flow into the exhaust channel.

Effect of Spring Back on Formation Process of Sheet Metal Bending Plates Purwantono, Purwantono; Erizon, Nelvi; Helmi, Nofri; Akhbar, Muhammad; Muhibuddin, Muhibuddin
Teknomekanik Vol. 3 No. 1 (2020): Regular Issue
Publisher : Universitas Negeri Padang

This study aims to observe the amount of deviation that occurs due to the influence of spring back on the forming process. spring back in question is the back force when the plate undergoes a forming process, but when the load is released, the plate condition will reverse or return to its initial condition. This reversal is due to the factor of the elasticity of the material that is owned. Other factors that influence the bending process include thickness, width, angle of bending and others. object of this research is a sheet metal plate with a thickness of 1 mm - 4 mm. Forming process is done by bending process. This bending process is widely used in the plate forming process, namely to bend the sides of the plate to make it stiffer. This bending process is carried out in cold conditions where the process is carried out at room temperature. This research was conducted by preparing slices of the same width and length and then the process of bending them to form an angle of 20 ° to 120 °. results of this test indicate that the thicker the bent material has the tendency to produce small deviations. This means that the value of the spring back ratio also decreases. The value of the spring back ratio in this study ranges from 1% to 9%. This means that if the bending process is carried out on a steel plate with the resulting bending angle of 90 °, the bending angle of the shoe must be more than 90 °, the excess is 1 ° - 9 °. So that when the load is released, the position of the susdut bends closer to 90 °.

The Effect of Cast Iron Preheating on the Microstructure of Welding Results by Using Cin-2 Electrodes Sabirin, Ahmad; Purwantono, Purwantono
Teknomekanik Vol. 3 No. 2 (2020): Regular Issue
Publisher : Universitas Negeri Padang

Cast iron is commonly found in engineering tools such as machine frames, vise, lathes, planers, pressing tools, V-belt pulleys and others. Cast iron is a metal which is relatively difficult to weld because it contains more than 0.3% carbon. As a matter of fact, a lot of welding workers still experience failure in welding the cast iron, so they require the proper procedures to perform welding on the cast iron like the heat treatment before the welding. This study was aimed at obtaining the effect of preheating variations on the weld joints in which the process of welding the material used the type of open V seam connection. The specimen used was a cast iron with a thickness of 10 mm and the electrode used was the JIS Z 3252 DFCNiFe electrode. The method applied in this research was the microstructure observation testing toward the welding result by using Shielded Metal Arc Welding (SMAW). Based on the results of the study, it can be concluded that by applying the preheating variation treatment on the cast iron welding, there was a change in the microstructure and it was dominated by pearlite-ferrite in the weld metal area. As a result, the rough graphite that looks like roots became smooth after experiencing the preheating treatment because the ferrite was evenly distributed in the heat affected area. To conclude, the most superior specimen for the cast iron preheating among the four specimens was the one with 425oC temperature.

Pembuatan Perangkat Pembelajaran Berbasis Modul pada Mata Pembelajaran Gambar Teknik Manufaktur Kelas XI TPM Utami, Fathya Suci; Sari, Delima Yanti; Purwantono, Purwantono; Adri, Junil
MASALIQ Vol 3 No 6 (2023): NOVEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v3i6.2082

Learning in several vocational schools uses Autodesk software which has many features and is also widely used in industry. The change in the use of the 2013 curriculum at SMK N 5 Padang will certainly change the learning concept which originally used the 2013 curriculum to become an independent curriculum. Curriculum changes require teachers to prepare new media or teaching materials in accordance with the established curriculum. The aim to be achieved in the research is to develop a PJBL (Project Based Learning) based learning tool for the Manufacturing Engineering Drawing subject with the hope that this module can be used in schools as a learning medium. This research uses the R&D method with the ADDIE development model. Material expert validation was carried out by 3 experts in the field of production materials. The percentage of presentation aspects is 1.0 and the percentage of content aspects is 0.97. The percentage of validation results for all aspects is 0.98 in the very valid category. Validation of media experts and models was carried out by 3 experts in the media field. The percentage of the visual appearance aspect is 0.96, the physical criteria aspect is 0.93 and the convenience aspect is 1.0. The percentage of media expert validation results from all aspects is 0.96, very valid research category. Language expert validation was carried out by 1 expert in the field, consisting of 8 items. The percentage of language expert validation is 0.87 in the very valid category, so this teaching module is said to be very good for use in the learning process by future researchers.

Simulasi Numerik Variasi Intake terhadap Karekteristik Aliran pada Basin Turbin Vortex Andri, Rezky; Yuvenda, Dori; Purwantono, Purwantono
MASALIQ Vol 4 No 1 (2024): JANUARI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i1.2666

Water has an important role to be used as a source of electrical energy, water is used to drive turbines that will later produce electrical energy, water turbines have great potential to be developed, especially in vortex turbines. A vortex turbine is a turbine that utilizes whirlpool energy to rotate the turbine blades and then convert it into electrical energy. The purpose of this study was to determine the characteristics of the flow in each inflow variation in the vortex turbine basin. The simulation in the study was carried out using solidworks 2023 software using the CFD (Computational Fluid Dynamics) method. After running simulations, velocity data were obtained on each Outer Wall Tangential inflow design of 0.496 m/s, Involute of 0.517 m/s, Ramped Entry of Scrolled Evolute of 0.0857 m/s, and Involute Ramp of 0.551 m/s. pressure in each Outer Wall Tangential inflow design of 100,793.39 N/, Involute of 99,400.12 N/, Ramped Entry of Scrolled Evolute of 99,270.4 N/, and Involute Ramp of 99,324.31 N/. From the simulation results, it can be seen that the largest velocity is obtained in the Ramped Entry of Scrolled Evolute design, and the largest pressure is obtained in the Outer Wall Tangential design.

Hubungan Hasil Belajar Produk Kreatif dan Kewirausahaan (PKK) dengan Kesiapan Berwirausaha Siswa Teknik Pemesinan SMKS Dhuafa Padang Wahyudi, Wahyudi; Sari, Delima Yanti; Purwantono, Purwantono; Qalbina, Fitrah
MASALIQ Vol 4 No 6 (2024): NOVEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v4i6.3883

SMKS Dhuafa Padang equips students with entrepreneurial knowledge and skills through the subject of Creative Products and Entrepreneurship (PKK). However, students' entrepreneurial readiness is still low. This study examines the factors behind it, such as the narrowing of employment opportunities, entrepreneurship can create jobs, PKK has an influence on the entrepreneurial spirit, entrepreneurship learning has an important role in improving students' entrepreneurial readiness. This study uses a quantitative correlational type to determine the relationship between PKK and Entrepreneurial Readiness. Data collected in the form of numbers and analyzed using statistics. The research method used is associative quantitative, which aims to determine the influence and relationship between PKK and Entrepreneurial Readiness. This study found that PKK has a relationship with student entrepreneurship readiness at SMKS Dhuafa Padang. This is evidenced through the T test and F test, where the value of Sig. 0.05 and the value of tcount ttable (in the T test) and the value of fcount ftable (in the F test) indicates a relationship.In conclusion, PKK proved to play an important role in increasing students' interest in entrepreneurship, with 15.1% influenced by PKK and the rest by other factors.

Implementasi Augmented Reality dalam Mata Pelajaran Pekerjaan Dasar Teknik Mesin di SMK Negeri 1 Sumatera Barat Satria, Lucky; Primawati, Primawati; Purwantono, Purwantono; Prasetya, Febri
ARZUSIN Vol 3 No 5 (2023): OKTOBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/arzusin.v3i5.1771

Students' understanding of science is limited because the teacher's lecturing teaching method. This method makes students uninterested in following the learning process. This research is aiming to see what extent the Augmented Reality(AR) applicationcan influence students' learning perceptions. In this research, total sampling method was used with a case study approach. Data was collected through classroom observations, interviews with students, and content analysis of student responses to the use of AR as a learning media. The collected data was analyzed thematically to identify patterns of students' perceptions regarding the benefits, constraints, and responses to using AR. Results from 35 students showed that the use of AR in Mechanical Engineering Basic Work subject received positive responses with 92.5% in scores. Students report that using AR increases interest and engagement in learning, and helps them understand technical concepts better. However, several obstacles such as device limitations and initial training in the use of the technology were also identified. This research emphasizes the importance of integrating AR technology in mechanical engineering education at the vocational school level. These findings provide a vision of the impact of using AR in practical and technical learning, and provide a basis for the development of more better learning strategies. Overall, this study provides valuable insights into students' perceptions of using AR in the context of mechanical engineering education. The implications of these findings can help educators and curriculum developers to design learning experiences that are more engaging and effective in preparing students for future technical challenges.

Rancang Bangun Circulating System Water Heater dengan Sumber Panas Solar Cell Harpen, Romario Van; Purwantono, Purwantono; Syahri, Budi; Wulansari, Rizky Ema
ARZUSIN Vol 3 No 5 (2023): OKTOBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/arzusin.v3i5.1774

The use of solar energy is very important to increase today because solar energy is renewable energy and also does not cause pollution, but solar collector equipment is still needed to convert solar energy into heat energy. This study aims to analyze the heat transfer in the flat plate solar collector which is used as a source of thermal energy in the water heating process for bathing. A solar collector is used to absorb solar thermal energy and then transfer it to a water pipe. The pipe material uses copper which has a very high conductivity value with an outer diameter of 5/8 '' (15.7 mm). The collector plate uses aluminum plates, because aluminum plates are quite high heat conductors. The dimensions of the box / collector frame are 150 cm long, 80 cm wide and 80 cm high. The collector frame is made of steel, with an angle of 15 ˚ of the tool. The results of the study in sunny weather conditions 46.8 c, then the results in the form of sunny cloudy weather produce an outflow water temperature of 44.3 c and finally the results data collection in the form of cloudy weather the results obtained are 38.3 c. Based on the experimental process, the collector temperature was taken using a thermocouple,heat the water to the initial temperature in a bucket of 28˚c and the temperature of the water out during the study to produce 40˚c.

Co-Authors Abdul Aziz Adam Rasyid Sidiqi Akhbar, Muhammad Aldio, Muhammad Fikhri Ali Basrah Pulungan Ambiyar, Ambiyar Anaperta, Yoszi Mingsih Andre Kurniawan Andri, Rezky Ardi, Junil Ariansyah Ariansyah, Ariansyah Aswanto, Trio Harinaldi Bahrul Amin Budi Syahri Bulkia Rahim Delima Yanti Sari Dori Yuvenda Erizon, Nelvi Fajri, Husnul Falah, M. Jalaluddin Fauza, Anna Niska Febri Prasetya Fiki Efendi Fitrah Qalbina Halmadid, Muhammad Habib Hamdani Hamdani Harmanto, Dani Harpen, Romario Van Hidayat, Rohman Ihsan, Fachrul Irzal, Irzal Jasman Jasman Junil Adri Kifli, Rafi Febrianto Muhibuddin Muhibuddin, Muhibuddin Nabawi, Rahmat Azis Nofri Helmi, Nofri nst, Hafizd Syahiran Nurdin Hendri Permana, Kaesarion Rahman Primawati Primawati, Primawati Putra, Randi Purnama Rahmat, Febri Ramadhan, Ozi Ramadhan, Raihan Refdinal, Refdinal Remon Lapisa Richardo, Richardo Rinaldo, Putu Satria Sabirin, Ahmad Satria, Lucky Sidiq, Ahmad Halim sudiani, yoni Syahril Syahril Trisna Juwita, Dinda Trisyaldi, Ar Utami, Fathya Suci Wahyudi Wahyudi Wanda Afnison Waskito Waskito, Waskito Wulansari, Rizky Ema Yufrizal Yufrizal, Yufrizal Zainal Abadi

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