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Logic : Jurnal Rancang Bangun dan Teknologi
Published by Politeknik Negeri Bali
ISSN : 1412114X     EISSN : 25805649     DOI : -
Core Subject : Science, Education,
Computer Science & IT 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.
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 21 No 2 (2021): July" : 8 Documents clear
Designing an Ergonomic-Based Work Facility of Dough Stirrer for Kerupuk Cipir Using Rapid Entire Body Assesment (REBA) Analysis to Reduce Muskuloskeletal Complaints and Increase Productivity Tri Budiyanto; Fakhri Agus Setiyoso
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2454

Abstract

Abstract. The small and medium-sized enterprises (UKM) of Kerupuk Cipir are the home industries which produce kerupuk cipir. During the making process, there were still many phases which were done manually using a simple work facility. During the dough stirring phase, the workers used a bending work posture (unergonomic) which caused musculoskeletal complaints and various problems toward the workers. Therefore, a research was conducted by applying rapid entire body assesment (REBA) analysis to decrease musculoskeletal complaints and increase productivity. The research was conducted experimentally at UKM Kerupuk Cipir in Binangun Village, Karangpucung District, Cilacap Regency by using the treatment by subject design. There were two treatments given toward the sample: stirring the dough using the former work facility and stirring the dough using the improved work facility through ergonomic approach. The musculoskeletal complaints were measured using Nordic Body Map questionnaire. The data were analyzed using descriptive and inferential statistics. The results showed a decrease on REBA score from 11 on level 4 which was in the category of high risk into score of 4 on level 2 which was in the category of quite high when the handle position is on the upper side, score of 5 when the handle position is on the front side, and score of 7 when the handle position is on the lower side. The workers’ complaints of severe pain on 9 body parts and pain on 6 body parts were decreased into mild pain on 7 body parts and no pain on 20 other body parts. Work productivity increased into 89.62%.
PLTS Hybrid Modeling with Vertical Wind Power I Ketut Parti; I Made Sumertayasa; Ni W Rasmini
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2647

Abstract

The current energy crisis has once again taught us, the people of Indonesia, that serious and systematic efforts to develop and implement renewable energy sources to reduce dependence on fuel must be carried out immediately. The use of renewable and environmentally friendly energy sources, especially those that can reduce the various adverse effects caused by the use of fossil fuels. The urge to leave petroleum as a source of national energy supply is currently being rolled out by various parties, including themselves. These steps are needed to get Indonesia out of the sustainable energy crisis. To optimize the need to combine two generators, namely PLTS with PLTB. The purpose of this study was to determine the combination of a power generation system produced by a vertical wind power plant with solar power with a hybrid system which is expected to optimize the power generation system between the two plants.
Automatic Mirror Folding Design Arduino-Based Mira Esculenta Martawati; Sugeng Hadi Susilo; Asrori A; Lulut W
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2503

Abstract

Abstract. The rear-view mirror is one of the main devices found in cars. A mirror is a mirror used to see the traffic of a vehicle behind when it is about to veer, stop or change lanes. The purpose of this study was to design a pre-crash performance test of the rearview mirror. That is a system that will automatically perform mirror folding automatically based on the distance of the object in front of it. The system will reduce the risk of broken or scratched due to driver negligence. The research method at a time when the barrier is 30cm (±20cm) away from the front or back of the rearview mirror will read that distance which will then transmit to the Arduino. Arduino will process the data and send data for the speed reduction process by warning that there is an object in front or behind the rearview mirror and when the distance is <30cm from the barrier object, then the Arduino will order to fold the rearview mirror automatically, by activating the servo motor to fold the rear and rearview mirrors. The result of this study was to find out the performance of the GP2Y0A21 distance sensor reading and the performance of the rearview mirror pre-crash system. In this study, the bound variable was the distance measurement of the sensor's reading. The free variable used is the sensor reading metering distance displayed on the LCD (Liquid Crystal Display).
Feasibility Evaluation of Public Passenger Transport Connecting Urban and Rural Areas Ida Bagus Wirahaji; I Ketut Sutapa
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2650

Abstract

The purpose of this study is to evaluate the feasibility of carrying out public passenger transportation which is influenced by the population, potential residents to travel and ownership of private vehicles, by examining the Wangaya-Sangeh-Pelaga Terminal Route. The data collection method is by downloading secondary data from BPS Denpasar City and BPS Badung Regency in 2020. The secondary data required in each sub-district / village are: population; number of households; number of potential residents to travel (aged 5-65 years); ownership of 4-wheeled vehicles (cars); and ownership of two-wheeled vehicles (motorbikes). The data analysis method used is the Guidelines for the Delivery of General Passenger Transportation from the Directorate General of Land Transportation, Decree No. SK.687 / AJ.206 / DRJD / 2002. Of the fifteen sub-districts / villages that the Wanagaya-Sangeh-Pelaga Terminal Route route passes, only four sub-districts / villages are eligible to be included in the AUP service area, meeting the N> R requirements. Eleven other kelurahan / villages cannot be included in the transportation management area. general passenger. Thus, the Wangaya-Sangeh-Pelaga Terminal Route is not suitable for public passenger transportation.
Feasibility Test and Practicality of Blended Learning Design of Applied Mathematics for Vocational Education I Ketut Darma; I Gede Made Karma; I Made Anom Santiana
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2544

Abstract

This study aims to determine the feasibility and practicality of the design of blended learning applied mathematics for vocational education. Research using the 4D model development method from Thiagarajan includes: Define, Design, Develop, and Disseminate, carried out in stages at the Bali State Polytechnic. Currently the Develop stage is being carried out. Data were collected using a validation sheet and a questionnaire for the responses of lecturers and students. Data were analyzed descriptively. The results, 1) the content validity and constructs of blended learning applied mathematics 3,8 and 3,6 are categorized as very valid with a reliability of 88.6% and 91.1% are categorized as very reliable, and 2) the level of practicality by lecturers and students respectively also 83.5% and 83.5% in the practical category. The implication, draft II of this design is very feasible and practical to be used as a learning strategy in vocational education. Draft II can be continued to the next stage of development, namely testing the effectiveness, evaluation and dissemination, but for optimization it is necessary to revise a small receipt referring to the practicality test results.
Analysis of OHS Costs in the Road Construction Project of Singaraja City – Mengwi (Short Cut Bedugul Point 5 - 6) I Ketut Sutapa; I Nyoman Sutapa; I Wayan Darya Suparta; I Nyoman Ramia; Denin Lintang Tuhujati
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2545

Abstract

Short Cut Bedugul is a short road construction project on the Singaraja-Denpasar route. The short cut development includes the implementation of an occupational health and safety management system (SMK3). The 5-6 point short cut project includes the grade of a large project and places great importance on work safety. Field conditions with high rainfall make the area prone to landslides that can endanger workers, as well as environmental temperatures that reach 20oC which can affect work productivity. The objectives of this study are: To analyze the implementation of occupational safety and health (K3) on the Short Cut project point 5-6 Bedugul. To find out the amount of costs incurred in implementing K3 on the Short Cut point 5-6 Bedugul project. To analyze the percentage of safety and health costs (K3) to the short cut project value point 5-6 Bedugul. The type of research used in this research is descriptive research. and a quantitative descriptive of the construction of the Singaraja City Boundary Road - Mengwi (Short Cut Bedugul point 5–6) the use of K3 such as the use of safety helmets, light vests, masks, gloves, and safety belts is in accordance with the law and is very disciplined and obedient to existing regulations. set. The percentage of K3 costs to the project value refers to the CIRCULAR OF THE MINISTER NO. 66 / SE / M / 2015 Regarding the Cost of Implementing an Occupational Safety and Health Management System (SMK3) Construction in the Public Works Sector is 0.7%.
Analysis the Strength of Mild Steel Material on a Handcycle Bike Frame Andika Wisnujati; Rela Adi Himarosa
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2452

Abstract

The frame is one of the most important parts in a series of constituents of a bicycle. The materials for making bicycle frames usually use tight and strong materials such as stainless steel, carbon and titanium. Mild steel is steel with low carbon, which is about 0.05-0.30%. After conducting a tensile test on the mild steel material used on the handcycle bicycle frame, the highest stress results were 1,093.87 N/mm² and the highest strain was 0.167%. For the results of stress analysis contained in the autodesk inverter, the von mesess results are obtained for men weighing 70 kg von mesess maximum 1400 mpa and women weighing 60 kg 1200 mpa. The maximum displacement generated for men weighing 70 kg 96.63 mm and women weighing 60 kg 82.83 mm. For the safety factor obtained based on the safety number from Dobrovolsky for static loads, the safety number is 1.25-2; dynamic load 2-3 shock load 3-5 while the safety rate that occurs in the load is 0.15 for men weighing 70 kg and 0.16 for women weighing 60 kg. So the handcycle bikes that we made are safe to ride because the results obtained are still below existing standards
Experimental Investigation on the Effect of Angles of Attack to the Flutter Speed of a Flat Plate in Axial Flow I Putu Gede Sopan Rahtika; I Made Suarta; I Komang Rusmariadi; Putu Wijaya Sunu
Logic : Jurnal Rancang Bangun dan Teknologi Vol 21 No 2 (2021): July
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v21i2.2630

Abstract

The application of flat plates to the field of wind harvesting requires a lot of research toward the understanding of the flutter behavior of the plates. There are shortages of articles that discuss the effect of varying the angles of attack to the flutter speed of a flat plate. This research aims to conduct a basic experimental research on the effect of relative position of a thin-flat plates to the direction of the air flow to its flutter speed. In this study, a thin-flat plate was placed in a subsonic wind tunnel to test its flutter speed. The position of the plate was varied in various angles of attack. The effect of the angles of attack to the flutter speed was observed.

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