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Logic : Jurnal Rancang Bangun dan Teknologi
Published by Politeknik Negeri Bali
ISSN : 1412114X     EISSN : 25805649     DOI : -
Core Subject : Science, Education,
Logic : Jurnal Rancang Bangun dan Teknologi is a peer-reviewed research journal aiming at promoting and publishing original high quality research in all disciplines of engineering and applied technology. All research articles submitted to Logic should be original in nature, never previously published in any journal or presented in a conference or undergoing such process across the world. All the submissions will be peer-reviewed by the panel of experts associated with particular field. Submitted papers should meet the internationally accepted criteria and manuscripts should follow the style of the journal for the purpose of both reviewing and editing.
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Articles 8 Documents
Search results for , issue "Vol 19 No 3 (2019): November" : 8 Documents clear
Energy Analysis Produced In Mixture of Liquid (Pertalite) and Gas (LPG) in Conventional Machine 4 Cylinder Putra, Adi Pratama; Qiram, Ikhwanul
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1764.497 KB) | DOI: 10.31940/logic.v19i3.1458

Abstract

Increased mobility of transportation plays a major role in the economic growth of a region. Despite the rapid growth of the automotive industry, there are still quite a lot of people who use old-type vehicles to support their mobility. Conventional 4-cylinder engine is one type of engine that is widely used in public transportation modes. The purpose of this study was to obtain an analysis of the energy produced in a mixture of liquid fuel (pertalite) and gas (LPG) in a conventional engine 4-cylinder. The research method used was an experiment, carried out on a conventional engine 4-cylinder. A dynamometer is used to determine the power and torque produced. As for testing the rate of fuel consumption using a measuring burette, then the fuel consumption is calculated. The research data are arranged in tables and graphs to obtain the analysis of the energy produced at each rotation speed variation (Rpm). The results showed there were differences in power, torque and fuel consumption produced by a mixture of the two types of fuel used. For maximum power generated at a standard injector variation that uses Pertamax plus fuel of 11.61 kW and a maximum torque of 12.98 Nm. While the lowest power is produced by Pertamax using a racing injector of 2.26 kW and the lowest torque of 8.67 Nm. The lowest fuel consumption is obtained from the use of a standard fuel injector Pertamax plus of 0.12 kg / kW while the highest fuel consumption produced by Pertamax Plus uses a standard injector of 1.28 kg / kW.
Force Based Design and Direct Displacement Based Design for Dual System Structure Puspita, Annisaa Dina; Rosyidah, Anis
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2137.986 KB) | DOI: 10.31940/logic.v19i3.1454

Abstract

The Force Based Design (FBD) and the Direct Displacement-Based Design (DDBD) are methods for designing seismic-resistant buildings. Building structures designed, are expected to be suitable with the purpose and usefulness of a building. For this reason, this study compares the performance of dual system structures using the DDBD and FBD methods that aim to prove better performance with consideration of safety against users during an earthquake. This research method uses design analysis method to compare the value of the base shear force, reinforcement ratio, and performance level using software for static nonlinear pushover analysis. The results showed the value of the base shear force x direction of the DDBD method was 17.57% smaller than the FBD method, whereas for the y direction the DDBD value was greater than 9.38% of the FBD. The value of the reinforcement ratio of the beam, column and shear wall results is greater DDBD than FBD. The actual drift of the DDBD and FBD methods is slightly different. So that both are at the same level of performance, namely damage control. The performance level has not reached the performance target of life safety design in DDBD, but the structure has met the level performance requirements for offices.
Mobile Application Searching of the Shortest Route on Delivery Order of CV. Alfa Fresh With Brute Force Algorithm Ariyanti, Indri; Ganiardi, M. Aris; Oktari, Ulsa
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3029.838 KB) | DOI: 10.31940/logic.v19i3.1437

Abstract

Traveling Salesman Problem is a problem solving used in finding the shortest route to visit all nodes at once and then return to the initial node. Troubleshooting of the Traveling Salesman Problem using the Brute Force algorithm. The object of this research is the courier at CV. Alfa Fresh. The Brute Force algorithm provides a solution for Traveling Salesman Problems to select and determine the shortest routes to deliver orders from the office to the destination. The Brute Force algorithm is an algorithm that is used to match patterns with all routes to be traversed to find the shortest route pattern. The Brute Force algorithm works by enumerating all possible candidates. With this application can facilitate the courier in determining the closest route from the position of the courier.
Effect of UV Aging on Physical Properties of Vulcanized Rubber with the Addition of Reclaimed Rubber Syabani, Muh. Wahyu; Suwarno, Yuli; Agustian, Mertza Fitra
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.895 KB) | DOI: 10.31940/logic.v19i3.1469

Abstract

Rubber solid waste amount increased continuosly and caused environmental problem since it is very difficult to be naturally degraded. Therefore, the interest of using rubber waste as raw material for new rubber product is increased. Reclaimed rubber can be used as filler aditif for rubber processing. The aim of this research was to study the effect of UV aging on the rubber product as the reclaimed filler added. The mixing of the rubber and the additives used the kneader and open mill. The vulcanization process was done by hydraulic press. In this research, the reclaimed rubber addition was varied as follows: 12,5; 37,5 and 62,5 phr. The products quality differences before and after the UV aging evaluated using physical tests. The result of FTIR showed that the polymer chain were broken by ultraviolet radiation. The physical test gives result that the hardness and tensile strength decreased, but the elongation is increased after UV aging.
The Eksperimentation Study of Wave Transmission Trough Type Of Hollow Cube Breakwater Daniel, Daniel; Budiman, Budiman
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2097.61 KB) | DOI: 10.31940/logic.v19i3.1457

Abstract

Erosion that occurs in break water by wave sand currents is a serious problem along coastal and inland shore [1]. This study aimed to assess the effect of the model height (Hm) and the pole density on the model on the reduction of the wave height and on the relationship between the non-dimensional parameter. The research was experimental with 2D physical model simulation which was conducted in the laboratory of Marine Engineering Faculty, Hasanuddin University. Several of configurations of Hollow-type breakwater models were made with different densities and model heights. The model scale use was 1:10 for the three model variations ((M1KB, M2KB, and M3KB) with the variations of the periods and of the  wave height, at 0,25 m water depth. The research results indicated that the parameters which showed  significant effects were the model height and the model density. These  parameters showed the t
Designing and Manufacturing the Press Tool of Air Bending V Brake Nur, Rusdi; Suyuti, Muhammad Arsyad; Iswar, Muhammad
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.32 KB) | DOI: 10.31940/logic.v19i3.1397

Abstract

Nowadays, the metal forming process in the welding machinery and machinery industry is developing very rapidly, especially in the bending process. The buckling process is a metal formation which generally uses sheet plates or rods from both ferrous and non-ferrous metals by bending, which in the bending process will cause a stretching or stretching on the neutral axis of the field along the bending area and producing a straight bending line. Appropriate technology machines have been widely used to increase productivity, efficiency, and effectiveness in the production process for community efforts. One of the appropriate technologies that can be applied in buckling is a tool equipped with a press tool. Press tool is one type of tool for the formation, cutting and bending of products from the base material of sheet plates whose operation uses a press machine. In this study, a V brake bending tool has been produced which has a capacity that is bending line length 300 mm, bending width 33 mm, spring height 110 mm, free step distance 19 mm, spring load received 263,820 N and material capacity that can be bent is a thickness of 3 mm, the punch angle used is 85? with a punch radius used which is 1.5 mm while the die angle is 85?
Evaluation of Bulusan Landfill Capacity in Banyuwangi Holik, Abdul; Erwanto, Zulis; Yusuf, Mohammad Aziz
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1804.281 KB) | DOI: 10.31940/logic.v19i3.1212

Abstract

Abstract. The Bulusan landfill of Banyuwangi has 1.5 ha to accommodate garbage from 13 districts with an input of 451.8 m3 of garbage per day and controlled landfill methods are carried out as garbage management. This research aims to evaluate the capacity of the Bulusan Landfill in Banyuwangi. Arithmetic, geometric and least square method were selected by the highest correlation value. The projection result of the Bulusan landfill for 2018 has been declared overloaded, with the height of embankment was higher than the planned embankment and it has not been able to accommodate garbage. The projection for the next 15 years from 2017 to 2031 was predicted that Bulusan landfill will be overloaded at 1.172.185 m3 of garbage volume. Financial and technical feasibility studies for candidates for the Bulusan landfill replacement need to be carried out so that the Bulusan landfill replacement project can be realized immediately.
Bearing Capacity Analysis of Bridge Foundation Based on Cone Penetration Test Data and Soil Parameters Data Yunus, Muhammad; Syahdinar, Zahrin F.
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2712.631 KB) | DOI: 10.31940/logic.v19i3.1471

Abstract

One that deserves the attention of planners in designing a bridge structure is the design of the substructure. This is due to the fact that the structure below determines the quality and service life of a bridge and at present many cases of bridge structure failures are caused by failures of the substructure in holding the load acting on the bridge The aim of this research to test the characteristics of the soil and calculate bearing capacity of the foundation based cone penetration testing data and soil parameters at the Aifa bridge construction field in Fafurwar District, Teluk Bintuni Regency, West Papua Province. From the results of testing the soil characteristics in the laboratory, the type of soil at point 1 is the type of good to bad graded sand soil (SW-SP) with a water content of 17.72%, specific gravity 2.98, liquid limit (LL) = 16,746% included in the non-plastic category. While the location of point 2 is obtained from good to bad graded sand soil type (SW-SP) with a water content of 28.52%, specific gravity 2.73, liquid limit (LL) = 16.746% including the non-plastic category. To analysis of the calculation of the bearing capacity of the foundation Aifa bridge using data from the sondir test results for point 1 was obtained allowable bearing capacity (Qall) is 4.610,44 kN and for point 2 was obtained allowable bearing capacity (Qall) is 3.598,43 kN. For calculating bearing capacity of the foundation using soil parameter data for point 1 was obtained bearing capacity allowable (Qall) is 2.209,93 kN and for point 2 was obtained allowable bearing capacity (Qall) is 655,41 kN

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