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JOURNAL OF SCIENCE AND APPLIED ENGINEERING
Published by Universitas Widyagama
ISSN : 26213753     EISSN : 26213745     DOI : -
Core Subject : Science, Education, Social, Engineering,
Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Social Sciences Other
ournal of Science and Applied Engineering (JSAE) is an open access peer-review journal, and is aimed to disseminate original research in all fields of Electrical Engineering, Mechanical Engineering, Civil Engineering, Industrial Engineering and Informatics Engineering and presents the latest development and achievements in scientific research in Indonesia and overseas to the world’s community. Only original, innovative and novel papers will be considered for publication in the JSAE. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JSAE welcome contributions from all who wishes to report on new developments and latest findings in science and applied engineering.
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Articles 5 Documents
 1 
Search results for , issue "Vol 3, No 1 (2020): JSAE" : 5 Documents clear
Do We Need Taxi Counter at Major Transportation Hubs Sulistyo Arintono
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 3, No 1 (2020): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.586 KB) | DOI: 10.31328/jsae.v3i1.1292

Abstract

Taxi service at major international airport is usually an exclusive service where only those registered with the airport authority can serve passengers. Intending passengers need to register and pay a fixed fare at the taxi counter before using the service. Many customers complain that the fixed fare is significantly higher than if it was based on meter. This paper discusses the benefits or disbenefits of having taxi counter at major transportation hubs, trying to find the best solution for the benefit of all concerned parties: taxi drivers, customers and the authority. Data for analysis was obtained from observations at a number of airports and rail stations in Indonesia and Malysia. Result of the analysis suggests that it is ideal to have taxi counter, but use of the service should be made possible without having the customers to visit the counter.
Valuation of Reliability Index in Distribution Network 13.8 kV F. Yaser; Azriyenni Azhari Zakri; D. Y. Sukma
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 3, No 1 (2020): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.712 KB) | DOI: 10.31328/jsae.v3i1.1317

Abstract

This study is proposed to calculate and analyze the level of reliability of the 13.8 kV distribution system. To calculate the reliability index based on the reliability index of the value of the failure that occurred. The method used throughout this study is the Reliability Index Assessment (RIA) when this method takes into account momentary interruption. The distribution network is considered as the object of this study has six feeders. Based on blackout data obtained, the reliability index becomes smaller and can be distinguished between permanent and temporary disruptions. The calculation results show the reliability index of SAIDI, SAIDI, and MAIFI based on the type of disturbance; the results of this calculation will be compared with SPLN and IEEE. A comparison of the results of the calculation of SAIFI values from the six feeders analyzed all meet the SPLN and IEEE rules. However, in one of the feeders, the SAIDI index exceeds the established standard, which is 24 hours/year/customer, with the SPLN regulation being 21 hours/year/customer, and the IEEE standard is 2.3 hours/customer/year. And finally, the results of an analysis of the MAIFI index for all feeders meet the IEEE standard of 5 times/year/customers.
Mountain Bicycle Cycling Comfort on Different Road Surfaces Soffarina Soffarina
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 3, No 1 (2020): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.331 KB) | DOI: 10.31328/jsae.v3i1.1391

Abstract

Mountain bicycle is one of the types of bicycles, and it is made for off-road cycling. The main objective of the research is to focus on the surface of the road and weight to obtain and measure the vibration produce on the mountain bicycle. In order to investigate the vibrations, an accelerometer is placed under the saddle of the bicycle in order to get an accurate reading for different types of surfaces and the vibration of the weight. The cyclist had to cycle for 400 m in the average of 5.1 to 6.1 revolutions per minute on four different surfaces, and four different weight were investigated. The results show that the highest acceleration produced is which refers to mean value is the acceleration of loose gravel which is 0.46190. There is an insignificant value in the weight of the driver weighing 60 kg if replaced with 70 kg, 80 kg if the bike is running on four different kinds of roads.
Skyhook-PID Control Strategy to Improve Performance of a Pneumatic Active Suspension System Gigih Priyandoko
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 3, No 1 (2020): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (224.068 KB) | DOI: 10.31328/jsae.v3i1.1366

Abstract

The research applies a skyhook-PID control method for an active suspension system. The control strategy has three feedback control loops. They are the innermost loop for the force tracking of the pneumatic actuator, the intermediate loops applying skyhook strategy for the elimination of the disturbances, and the outermost loop using PID controller for the determination of the desired force. Some experiments were carried out on a physical test rig with a hardware-in-the-loops feature. The performance of the proposed control method was evaluated and benchmarked to examine the effectiveness of the system in suppressing the disturbance effect of the suspension system. It was found that the experimental results demonstrate the superiority of the active suspension system with Skyhook-PID scheme compared to the PID and passive suspension systems.
Behaviour of Reinforced Concrete Beams With Circular Transverse Openings Under Static Loads Ling Jen Hua; Howe Sheng Tang; Wen Kam Leong; How Teck Sia
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 3, No 1 (2020): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (750.253 KB) | DOI: 10.31328/jsae.v3i1.1288

Abstract

Transverse opening in a reinforced concrete beam allows the crossing of mechanical and electrical services through the beam. However, it affects the strength of a beam. Understanding its structural behaviour is crucial to ensure a safe design of the beam. For that, an experimental study was carried out on reinforced concrete beams with circular transverse openings. The four-point load test was conducted to study the effects of the size and the position of the opening on the beam performance under the shear and flexural loads. In addition, three reinforcing methods for the opening were tested. The beams were evaluated in terms of the load-displacement responses, mechanical properties, deflections, and failure modes. The opening with the diameter not exceeding 0.25 times beam height affected about 20% of beam strength (without reinforcements at the opening). The diagonal bar reinforcing method effectively restored the beam strength for the opening size not exceeding 1/3 of beam height. The equation model proposed conservatively predicted the ultimate capacity of the beam with a transverse opening.

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