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Jurnal Ilmiah Poli Rekayasa

JPR
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Published by Politeknik Negeri Padang

ISSN : 18583709 EISSN : 26853922 DOI : 10.30630/jipr

Core Subject : Education,

Education

Jurnal Ilmiah Poli Rekayasa adalah jurnal ilmiah yang diterbitkan 2 edisi dalam setahun, bulan April dan Oktober. Terbit sejak tahun 2005. Fokus Kajian jurnal ini adalah Fokus kajian artikel dalam JPR mencakup Mechanical Engineering, Civil Engineering, dan Electronica, Electricty dan Telecomunication EngineeringLingkup Jurnal Ilmiah Poli Rekayasa meliputi : 1) Energi terbarukan (rewnable energy), 2) Inovasi kendaran bermotor hemat BBM, 3) Material Maju, 4) Emisi dan pembakaran motor bakar, 5) Rekayasa termal dan fluida, 6) Rekayasa power plant, 7)Material komposit, 8) Biomaterial, 9)Teknologi pengujian tak merusak (Non Distruction Test/NDT), 10) Kontrol dan mekatronika, 11) Planing untuk pengurangan resiko bencana, 12) Sistem transportasi antar moda, 13) Rekayasa konstruksi, bangunan, jembatan dan Jalan, 14) Manajemen daerah aliran sungai, air tanah, sedimen dan waduk, 15) Remote Sensing Harap baca panduan ini dengan seksama. Penulis yang ingin mengirimkan artikel ke Jurnal Ilmiah Poli Rekayasa, harus mengikuti panduan penulisan. Jika artikel yang dikirim tidak sesuai dengan panduan penulisan atau ditulis dalam format yang berbeda, maka akan DITOLAK oleh editor sebelum ditinjau lebih lanjut. Para editor hanya menerima artikel yang memenuhi format yang ditetapkan. Artikel ditulis dalam bahasa indonesia. Jurnal Ilmiah Poli Rekayasa menggunakan prosedur penilaian Double Blind. Dimana antara penulis dengan mitra bestari tidak saling mengenal identitasnya masing-masing. Silahkan kirimkan artikel anda dan untuk unduh Template DI SINI Etika Publikasi dapat dilihat pada tautan berikut ini : ETIKA PUBLIKASI.

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Articles 171 Documents

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PENGARUH KARAT TERHADAP KETANGGUHAN MARETIAL BAJA UNTUK JEMBATAN Fauzri Fahimuddin
Jurnal Ilmiah Poli Rekayasa Vol 17, No 2 (2022): April 2022
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Rust is a major problem in steel bridge construction because it has the potential to affect the integrity of the structure and is also an important consideration for inspection and maintenance programs. This study shows the results of laboratory tests on the effect of rust within 1 to 9 weeks on fracture toughness as one of the important mechanical properties of steel bridge elements. The specimens in this study were made of SM 490 type, steel commonly used for bridge construction. Rustless and rusted specimens were used with varying degrees of exposure after immersion in acid solution to simulate the rate of rust. The effect of rust rate on fracture toughness due to mass loss was studied. The fracture toughness of each specimen was monitored for those specimens with exposure periods of 1 week, 2 weeks, 3 weeks, 4 weeks, and 9 weeks to test their effect on toughness. The results of this study showed that there was no significant reduction in the rusting duration of 1 week, 2 weeks, 3 weeks, 4 weeks, and 9 weeks of fracture toughness. Rusting and testing activity for the long term is still ongoing and will be continued, as the results of this study greatly help bridge designers and asset managers to better model rust inspection and maintenance plans and assess the structural integrity of steel bridges affected by rust more accurately.

DETEKSI KETIDAKSEIMBANGAN TEGANGAN PADA TRANSFORMATOR DISTRIBUSI BERBASIS SENSOR PZEM-004T TERNOTIFIKASI BUZZER Ridho Ariandi; Kartika kartika Kartika
Jurnal Ilmiah Poli Rekayasa Vol 18, No 1 (2022): Oktober 2022
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Abstract The distribution transformer is part of the distribution system, the transformer that is closest to the customer, if there is a problem with this transformer, the customer will immediately feel it. So to ensure the availability of electricity distribution, this transformer requires periodic maintenance and service. Detection of distribution transformers by detecting an imbalance of voltage and oil temperature in the transformer. To get the voltage and current values using the PZEM-004T sensor and for the transformer oil temperature value with a temperature of DS18B20 which will be forwarded to the LCD screen via the Arduino Uno platform. For the average value of the voltage obtained is 65V. this tool successfully reads the output of current, voltage and transformer oil temperature well with an average error of 0.74% at the maximum current reading in phase T. The system can provide information if there is a voltage imbalance, for voltage imbalance the largest error percentage is obtained. in Phase R of 6.31%. The voltage imbalance should not be more than 2.5% so that the voltage value that is read on the R phase exceeds the capacity of the voltage imbalance which causes a voltage imbalance disturbance in the T phase and the display of the value that is read on the LCD will appear the words "Not Normal Voltage" and marked with his life buzzer.

MANAJEMEN PEMELIHARAAN GEDUNG E, G, K DAN V POLITEKNIK NEGERI PADANG Yan Partawijaya
Jurnal Ilmiah Poli Rekayasa Vol 17, No 2 (2022): April 2022
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Building maintenance is a very important to do after a building is completed or used. Maintenance makes of the building longer, safety, strength and appearance. Maintenance can reduce damage to the building, comfort and safety for all building users. Analysis of the maintenance management buildings E, G, K and V Politeknik Negeri Padang for 2023, maintenance schedule for buildings E, G, K and V Politeknik Negeri Padang for structural, architectural and utility components is divided daily, weekly, monthly and yearly intervals. Time periode, daily maintenance includes work on floors, walls, ceilings, doors, windows, frames, clean water installations, security installations, sanitary equipment and electrical installations. Maintenance periode of weekly and monthly intervals includes the work of structures, floors, walls, doors, frames, clean water installations and air conditioning installations. Annual periodic maintenance includes work on structures, walls, ceilings, doors, frames, air conditioning installations, fire protection installations and security installations. The maintenance cost of buildings E, G, K and V Politeknik Negeri Padang Rp. 810,834,743.17 with the cost of structural components of Rp. 84,443.56, architectural components of Rp. 651,660,899.61 and utility components of Rp. 159,089,400.00. Keywords: Buildings, Maintenance, Time periode, Cost

MODIFIKASI MESIN PENGUPAS KULIT KOPI KAPASITAS 241 KG/JAM Sir Anderson
Jurnal Ilmiah Poli Rekayasa Vol 18, No 1 (2022): Oktober 2022
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Processing of coffee skin peelers generally still uses manual or semi-mechanical peelers and to overcome this, a mechanical coffee peeler driven by a gasoline motor is needed. The purpose of modifying this coffee skin peeler machine is to find the perfect tools that have been made previously. This machine modification is expected to help the process of peeling the coffee skin so that it can improve the quality of the coffee. The implementation method for modifying the coffee peeler machine starts with the plan, preparing the construction materials for machines, gasoline motors, gears and chains, peeling rollers, push rollers, iron plates and elbow plates. The next stage is assembling the machine and the engine position. The process ends with testing the tool, data analysis, and concluding the results of the tool. The result of specification this modified coffee peeler machine is capable to peel the coffee skin until 241.2kg/hour. The engine dimensions are 74 mm x 31 mm x 105 mm, using a gasoline motor of 1 hp 2800 rpm, the frame uses an elbow profile of 30 x 30 x 3 mm, the transmission system uses 2 pulleys D = 75 mm and 200 mm connected to a type A v-belt -54.

Perancangan Mesin Organic Bin Recycler dengan Bioaktivator untuk Menghasilkan Pupuk Kompos Zamri, Aidil
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.301

The Organic Bin Recycler machine is designed on a small scale to be placed in the kitchen and functions as a special trash can for organic waste. The design of this machine aims to reduce the problems related to the disposal of organic food waste and kitchen waste, reduce environmental pollution, and to produce compost. Composting in this machine is done by adding a bioactivator. The design is carried out with the catia v5 software in accordance with the calculations that have been done. The machine has two main components, the organic waste crusher, and the waste stirring component. The crusher uses an electric motor with a power of 0.75 kW or 1 Hp with a rotation of 1400 rpm. The stirring component uses a motor with a power of 0.18 kW or 0.245 Hp and a rotation of 1400 rpm which is reduced to 30 rpm using a 1:20 reducer gearbox. The transmission system used is a belt and pulley transmission.

PENGARUH INTERAKSI TANAH-STRUKTUR PADA TANAH LUNAK TERHADAP DILATASI DARI DUA BANGUNAN TINGGI AKIBAT GEMPA Sari, Desnila; Murdiansyah, Lukman; Yurisman, Yurisman; Guspari, Oni
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.244

Earthquakes that occur in buildings can lead to collision force with the next building if the initial gap between the two buildings is not sufficient for its free vibration responses. Collisions can cause amplification of the internal forces in the structural elements and the collision force on the contact zone is usually not considered in the initial design so that it can lead to damage and collapse of buildings. This study aime to determine the effect of Soil-Structure Interaction in the dilatation of two structures in soft soil with consideration of the collision to the next building. The structure is modeled as a structural system with multi degree of freedom (MDOF). The upper structure is considered linear elastic model and does not have damping as well as the lower structure (foundation). The collision can only occur on the floor level of the two buildings in which the contact zone is modeled as an elastic element. The rheological model for Soil-Structure Interaction are taken as a horizontal spring and a rotational spring. Structural dynamic equations was solved by using the Houbolt integration method. The resolution of numerical program was solved by the Matlab software. The results of study showed that soil-strucutre interaction increases the relative displacement under the condition of initial distance (gap) between the two buildings was reduced.

ANALISIS KEPUASAN DAN KEPENTINGAN FASILITAS DAN LAYANAN ANGKUTAN BERBASIS ONLINE DI KOTA PADANG Kurniati, Titi; Gunawan, Hendra; Nisya, Khairun
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.299

As a student city, the city of Padang is a residence for students from various regions. Limited public transportation in the city of Padang, students prefer to use online-based transportation for their mobility. This study aims to identify personal characteristics and travel experiences, satisfaction levels, and consumer interests of online-based transportation as a mode of transportation in the city of Padang. Research respondents are students and college students who study in the city of Padang. The online-based transportation used is Go-Jek. Data was collected through online questionnaire interviews. Data processing was carried out by descriptive statistical methods that described the characteristics of respondents, and statistical analysis of cross-tabulation was also carried out to find the level of influence between personal characteristics and travel experiences with online transportation. Analysis of the level of satisfaction and interest of online-based transportation consumers based on the Importance Performance Analysis (IPA) method. The average value of the level of satisfaction and consumer interest in aspects of service, reliability, comfort, security, and tariffs are 2.75 and 2.94, respectively. There are two attributes of facilities and services that are considered necessary. However, the level of service is not satisfactory, namely the availability of comfortable security devices for passengers and the availability of the fastest route.

MANAJEMEN MATERIAL SUBSTRUCTURE DENGAN METODE MATERIAL REQUIREMENT PLANNING Atmaja, Jajang; Riswandi, Riswandi; Natalia, Monika; Maifrianti, Riry; Hidayati, Fitri
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.288

Project management planning on sub structure area, very important to ensure efficient and effective construction projects. This research was purposes managing the sub structure material on precast pile and sloof using the material requirement planning (MRP) method in flat residence in West Sumatera. The scope research were the lot for lot (LFL) bar bending schedule and contingency plan (to minimize wasted material). The results of the analysis of study, the implementation of the MRP method (LFL technique) consists of cost of material planning on shop drawing, which was Rp.1,488,562,000,00; cost of material requirement planning by the lot for lot (LFL) technique was Rp.1,477,837,249,00; realization cost by combining the LFL technique and contingency plan is Rp.1,478,143,808,00. Calculation of the quantity and cost of reinforcing steel using the MRP method (LFL technique) by the bar bending schedule better than using the contingency method. Using bar bending schedule was more efficient, because it makes the remaining reinforcing steel after cutting was calculated properly.

PENGUJIAN BUCKET ELEVATOR GEN.01 TM Sukroni, Sukroni; Suwandi, Dedi; Ghozali, Muhamad; Gunawan, Leo Van
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jipr.18.2.296

Post-harvest agricultural products are all activities carried out from the process of handling agricultural products to the process that produces semi-finished products. Improper post-harvest handling will result in yield loss, both weight and product quality. Readiness of mature harvest and post-harvest technology will improve the quality of rice and the understanding of farmers and technology users in efforts to reduce crop losses. Bucket elevator is a tool for moving material that can be used to lift grain during the grain milling process, which can help work to move grain from the surface into the milling machine. In the Bucket Elevator test results, the effective rotational speed is 352.5 Rpm using a 1 hp 3 phase motor. The design of model 1 is the optimal bucket for lifting grain, resulting in a net weight of 243 gr/bucket contents with a maximum capacity of 280 gr/bucket. When attached to the Bucket carrier belt with 3 test results with different 1 hp motors get test results 1 = 22.5 kg/m , test 2 = 21.3 kg/m , and test 3 = 22.7 kg/m , with average result– average 22.1 kg/m. The noise test on the Bucket Elevator gets the results of noise intensity at 3 different points with an average value of point 1 (front) = 77.7 dBA, point 2 (side) = 72.0 dBA, and point 3 (top) = 77, 1dBA.

PEMOGRAMAN ARDUINO TERHADAP PENINGKATAN DAYA SEPEDA MOTOR HONDA BEAT FI Ghozali, Muhamad -; Mawardi, Iman -; Rohman, Abd
Jurnal Ilmiah Poli Rekayasa Vol 18, No 2 (2023): April
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study aims to obtain comparative data between the standard Honda BeAT PGM-FI motorbikes and those added by Arduino with an interpolated model. Interpolation is a method for obtaining data based on some known data. The method used is experimental based on relevant references. From the test results, it was found that the standard condition data was 6.2 hp at 2500 and 2655 rpm. while with the addition of Arduino the power value is 6.3 hp at 2500, 2664 and 2750 rpm. So that there is an increase in power of 0.1 hp or 1.58% between standard conditions and those using Arduino interpolation patterns.

Page 14 of 18 | Total Record : 171

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