Logic : Jurnal Rancang Bangun dan Teknologi
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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<![CDATA[The Development of Teaching Material Design for Automotive Electrical and Electronics Laboratorium Based on Automotive-SKKNI to Improve the Achievement of Standar Competencies of Polytechnic Students ]]>
<![CDATA[I Komang Rusmariadi]]>;
<![CDATA[I Putu Darmawa]]>;
<![CDATA[I Putu Sastra Negara]]>;
<![CDATA[Ketut Bangse]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1639
<![CDATA[This progress report contains about the achievement of the implementation of the program of research in the development of teaching materials in the form of an integrated jobsheet. The second stage of the development will be done in 2018 with the goal to find: 1) the evaluation result from the expert, lectures, and students, 2)the obstacles during the try out, and 3) the feasibility of the jobsheet draft as a lab teaching material. Research using Dick & Carey development model, in review and test the research involving 2 experts, 7 course lecturerss,and 24 students in mechanical engineering department. Data obtained using questionnaire enclosed and open questionnaire . Data were collected in the form of comments and suggestions as well as the evaluation result toward the integrated jobsheet were analyzed by descriptive qualitative and quantitative improvement. The test results stated: 1) the content expert test is very decent; design / media expert is very decent; individual very decent ; small group is very decent; and field testing of students and lecturer decent and very decent. 2) components that need to be revised from the entire contents of the test results and instructional design experts to field test were:The contents of the summary should be more material-oriented than the summary of jobsheet parts, in addition to trouble shooting ignition problems, it is necessary to add maintenance material that is preventive maintenance, assessment rubrics for evaluation /practical tasks need to be made in more detail from simple to complex practices. Summary and evaluation analysis tools must be clear, the amount of test practice material so that there is a balance of theory and practice, the size of the book should be chosen for an elegant appearance, especially if proposed to ISBN. Based on test data and analysis of the abovementioned, teaching material draft can be declared eligible as the practical of teaching jobsheet. This research only reached the stage of formative evaluation on Jobsheet, it is expected in the future to do more research to determine its effectiveness in an effort to increase the competence of students.]]>
<![CDATA[Redesign and Improvement of Pottery Spinner to Increase Worker Producivity ]]>
<![CDATA[I Made Agus Putrawan]]>;
<![CDATA[I Gede Santosa]]>;
<![CDATA[Ketut Adi]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1845
<![CDATA[Many small industries produce handicrafts related to art in Bali, one of which is pottery. Pottery is an object made of clay which is formed and then burned to be a unique shape such as: jugs, glassware, cauldron, brazier, piggy bank, and other objects. The process of producing pottery required the complex steps, from preparing clay, printing by turning, drying and burning. The main difficulty of pottery producers is in the process of forming shapes which involved the rotating spinner. Most of small industries still use the manual spin control to rotate clay bucket holder. This research aims to re-design of a rotating spin machine from the existing pottery industries to increase the productivity. The sample was overtaken from 12 craftsmen in Singakerta Village, District of Ubud Gianyar, Bali. Sample P0 was given to craftsmen is still used the old design and P1 was given to sample modified and re-designed the old machine with added automatic control of rotating spinner. Workload is calculated based on the worker's pulse rate which is measured using a pulse meter. Research data were analyzed using descriptive and inferential statistics. T-test method was performed to analyzing the differences range between groups P0 and P1 at significance level of 5%. The results showed a workload was decreased from heavy to moderate by 12.09%. Production rate was increased by 282.1%, and productivity increased by 334.6%]]>
<![CDATA[Effectiveness of Using Hollow as Column Formwork Amplifier Compared with Wood Beam ]]>
<![CDATA[I Wayan Suasira]]>;
<![CDATA[I Made Tapayasa]]>;
<![CDATA[I Ketut Sutapa]]>;
<![CDATA[I Made Anom Santiana]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1272
<![CDATA[In terms of cost utilization, formwork is the largest cost component in concrete work on a building project. The cost for formwork is about 40-60% [6] of the cost of concrete work or about 10% of the total cost of building construction. With two methods of formwork i.e. conventional and half system formwork, the authors want to know the comparison of which formwork method is best in the aspect of cost savings, and the execution time for the formwork of columns on the Standard Villa project. From 2 (two) methods proposed then it is chosen the second method; that is formwork column with method of half system as best alternative. The savings can be done from the first method to the second method as much as 26.17%, while in terms of savings time that can be done with method 2 is equal to 5% of method 1]]>
<![CDATA[Protection on Nozel Maintenance, Isuzu Panther Machine Early Generation ]]>
<![CDATA[I Wayan Suma Wibawa]]>;
<![CDATA[I Gusti Bagus Wijaya Kusuma]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1894
<![CDATA[Even though it is old, the existence and existence of Isuzu Panther cars in the 90s are still widely used, this is because in addition to the well-known / tested engine stubborn but also fuel efficient. To maintain the condition of the engine to stay fit, vehicle owners must pay attention to the maintenance of their cars regularly. One engine component that is vital and must receive special care is the Nozzle. The treatment of the nozzle is physical condition checking, cleaning and proper testing. This test is done by giving pressurized fuel to the nozzle, then we observe and analyze how the character of the spray. Testing pressure variations of 90 bar, 100 bar, 110 bar, 120 bar, and 130 bar (range of nozzle working pressure from the factory) using diesel, The characteristics of the fuel spray tested are the length of the spray penetration tip (L), speed spray (v or Uin), spray angle (Ɵ), and large distribution of granules formed at each pressure variation. From the test it is known, at 110 bar testing pressure has the best characteristics, both in terms of spray and the number of grains.]]>
<![CDATA[Design Dashboard Model For Fish Processing System (Case Study PT Blue Ocean Grace International) ]]>
<![CDATA[I Gede Sujana Eka Putra]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1870
<![CDATA[The dashboard system is a graphical analytical model provided for management to present the information summary and quality of fish processing data in each stage processing in specific periods of time, from a company or an organization, the dashboard has been widely adopted by companies or businesses. The background of this research is a huge of complex processing data which is difficult and require sometimes to process and to present data analytical to management to monitor and review processing result and making decision based on data analytical. In this research, we design graphical analytical dashboard which make easy to present the quantity fish processed and seafood product summary analysis in each processing stage start from receiving, cutting, retouching, packing and shipment. By using this dashboard, management enable make quick decision based on analytical information related to how many fish processed, quantity of seafood product resulted per processing periods to decide and determining future plan strategy related to fish supply, market demand. The scope of this research is to present summary analytical data from the periods July until December of 2019. The dashboard model help management decision by presenting data analytical of fish processing.]]>
<![CDATA[Analytical Analysis of Extreme Position Mechanisms for Conveyor Lifting Segments Using Kinematic Systems ]]>
<![CDATA[Radite Raharja]]>;
<![CDATA[Julius Pandu Winata]]>;
<![CDATA[Rasyid Yudhistira]]>;
<![CDATA[Lobes Herdiman]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1644
<![CDATA[The process of moving an item in the industrial world has an influence on productivity produced by the company. The company's productivity can be supported by using a conveyor when the transfer process takes place. This study aims to determine the extreme position of the conveyor lift segment mechanism using the kinematic system. The method used is an analytical analysis method with a kinematic system using SAM 6.0 software. The stages of the research process are measuring conveyor segments, drawing kinematic diagrams, depicting movement mechanisms, calculating degrees of freedom (DoF), calculating geometry, and ending the stroke link follower measurements. The results of the study resulted in a degree of freedom that is 1 which shows the movement of the conveyor freedom only 1 direction, and the calculation result of follower link stroke is 22.6o which shows the maximum range that can be done from the movement of the conveyor lifting segment.]]>
<![CDATA[Performance Insulator Cover Type : YSL-70-AP Post Voltage Break Down Test ]]>
<![CDATA[Wayan Jondra]]>;
<![CDATA[IGS Widharma]]>;
<![CDATA[Nengah Sunaya]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1784
<![CDATA[Electrical energy affect to economic, electrical energy consumption will increase and decrease likely economics. In this globalization era, electricity consumption was increased trend yearly since industrialization era. The reliability Electrical energy is very important for economic growth. The lower SAIDI and SAIFI is the bench mark for reliability of electrical energy supply. The reliable of insulator cover type: YSL-70-AP affect to the reliability electrical distribution energy on over head distribution circuit. Insulator cover protected to over head distribution circuit againt animal, bird, tree ang other temporary disturbance. Insulator cover also to protect half insulated medium voltage cable againt partial discharge and flashover. Over voltage stress more often during operation, to impact to the material insulation performance. This quantitative research founding: insulator cover type: YSL-70-AP still feasible to use after voltage breakdown stress. The fault current is still under the maximum allowable leakage current (11,600 micro ampere) which is 41.61 micro ampere, and breakdown voltage is still higher than minimum that specified (24 kilo volt), which is 49.63 kilo volt. Post breakdown voltage the material insulation performance of insulator cover type: YSL-70-AP is good, and reliable to continuous operation over head distribution circuit.]]>
<![CDATA[Experimentation of an Activated Carbon/Methanol Solar Refrigerator ]]>
<![CDATA[Nyoman Sugiartha]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1822
<![CDATA[Adsorption refrigeration systems become promising alternative cooling technology for refrigeration and air conditioning applications. Thermal energy is a primary source of such systems for producing cooling capacity with less electricity usage compared to vapour compression systems. Solar energy with free-access and abundant availability in the tropics have great potential as a renewable heat source to drive the adsorption refrigeration systems through direct conversion from solar irradiation to the thermal energy. This paper describes experimental work on the performance of a solar adsorption refrigerator working with activated carbon/methanol pair in Bali area. The solar refrigerator has an adsorber with an effective surface area of 0.259 m2 enclosed in a double-glazed collector box. The cooling load of the evaporator is 1 kg of water sited inside a cooler box of 0.37 x 0.25 x 0.345 m size. The experimental tests were performed outdoor to determine system cooling capacity and solar COP. Test results indicated that the refrigerator capable of bringing down water temperature at 18 ⁰C, while the system cooling capacity and COP reach 47.5 kJ and 0.046. Moreover, it is supposed that the solar adsorption refrigerator can be applied to pre-cooling post-harvest agricultural products, mainly tomatoes, before distribution to the grocery stores or end consumers.]]>
<![CDATA[The Performance of Irregular Building Structures Using Pushover Analysis ]]>
<![CDATA[Hanan Yurizka]]>;
<![CDATA[Anis Rosyidah]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1456
<![CDATA[High-rise buildings are at risk of collapse due to the earthquake. One method for analyzing earthquake loads is Pushover. Pushover is a non-linear static analysis to determine the behavior of a building collapse. This research was conducted to determine the performance of the setback building with a soft first story due to the earthquake based on the results of the pushover analysis curve. The structure is modeled as a 2-dimensional portal with a form of structural irregularity (setback with the soft first story) which consists of 2 structural models with different setback area ratios. The results of the analysis of this study indicate that the maximum shear force based on capacity curves in type 1 and type 2 buildings are 50260549.81 N and 53560488.63 N. Buildings with smaller setback area ratios, i.e., type 2 buildings have displacement, story drift, and base shear are more significant than type 1 buildings. Performance of type 1 and Type 2 building structures that refer to ATC-40 and FEMA 356 is at the Damage Control level.]]>
<![CDATA[Organic Waste Chopper Tool Design Using Autodesk Inventor 2015 Software ]]>
<![CDATA[Nengah Ludra Antara]]>
<![CDATA[ Logic : Jurnal Rancang Bangun dan Teknologi Vol 20 No 2 (2020): July ]]>
Publisher : <![CDATA[Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali ]]>
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DOI: 10.31940/logic.v20i2.1812
<![CDATA[In the program of mechanical engineering, the software used to draw is Autodesk Inventor. Autodesk inventor is a CAD program in the program of engineering that is applied to the design of mechanics in 3D. In designing a tool, of course, it is preceded by a planned design concept. In making a design a tool requires a process or steps for making the design. These steps include the size, dimensions, and materials used in making organic waste chopper tool. The drawing process uses the 2015 Autodesk Inventor program, the first is the making of sketches, components on the machine, followed by assembly of each component, then rendering images, animation as the final stages of drawing design input into "IDW" complete with size, scale, material. Image projection to make it easier for designers to make tools. Drawings of plan and complete details covering the scale dimensions will be able to simplify the manufacturing process (production) of the components of the tool and can reduce the risk of errors in the process of making tools.]]>
