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INDONESIA
JURNAL POLI-TEKNOLOGI
Published by Politeknik Negeri Jakarta
ISSN : 14122782     EISSN : 24079103     DOI : https://doi.org/10.32722/pt.v20i1
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation
Poli-Teknologi Journal is a journal, which began publication in 2002, published by the Research and community service Unit of Politeknik Negeri Jakarta. It starts from Volume 1 Number 1 in January 2022 for printed version; ISSN (print) 1412-2782 and ISSN (online) 2407-9103. Poli-Teknologi Journal is a series of scientific publications in applied science and technology area from the perspective of a multi and interdisciplinary studies and it is published 3 times in year.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 8 Documents
 1 
Search results for , issue "Vol. 20 No. 2 (2021)" : 8 Documents clear
PENENTUAN FAKTOR KEAMANAN MATERIAL GANJAL KAPAL UNTUK DOK GALANGAN KAPAL Mochamad Yusuf Santoso; Kartika Indira Putri; Rina Sandora
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3248

Abstract

Docks at the shipyard company have the potential danger due to failure in the ship shocks. It causes damage to the ship and accidents on ship repair and maintenance work because the entire weight of the ship fully rests on the docking blocks. One of the reasons for the failure of the docking blocks is the error in the selection of materials used, so it is not strong to support the ship hull on it. Therefore, this research was conducted to provide recommendations for docking block wood type for docks at shipyards. Recommendations are made by comparing the wood used today with the wood that has a higher strength level according to PKKI 1961 and making comparisons with SNI 7973-2013 regarding design specifications for wood construction to determine the mechanical properties of each wood. Mechanical property values are used as material properties for loading simulation using Ansys software. There are three observed parameters: von mises stress value, total deformation and safety factor. Based on the results, the strongest and the safest woods for docking blocks are Ironwood, Bangkirai wood, Meranti wood and tamarind wood, respectively.
OPTIMIZATION OF THE HYDRAULIC SYSTEM IN THE EXCAVATOR ARM SIMULATOR Abdul Azis Abdillah
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3304

Abstract

Most of the heavy equipment units use a hydraulic system, even including systems that are essential for working with a heavy equipment unit. The hydraulic system is a system that utilizes a liquid medium in the form of fluid or oil to generate pressure, which is used to implement, the power train system, the disconnection system, the steering system. The working principle of hydraulics is to utilize the pressure exerted on the tool (which is used for this actuator / cylinder / tube) so that the pressure pushes the piston which is connected to the rod. The hydraulic system in this study is an arm excavator. This simulator is like a hydraulic system in general which consists of a power unit, in this simulator the power unit used is a type of electric motor that is connected to a hydraulic pump. The control unit is in the form of a control valve. The drive unit is an actuator / cylinder / tube. This simulator has been disabled for a long time due to a malfunction. Then the authors performed a simple analysis and improvements to the excavator arm simulator. So the research that is done is to do the 8 step troubleshooting method on the simulator. This step aims to facilitate the repair process in the simulator.
USABILITY APLIKASI ANDROID HONDA e-Care DENGAN USE QUESTIONNAIRE DAN IMPORTANCE PERFORMANCE ANALYSIS (IPA) Kudiantoro Widianto
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3523

Abstract

Honda Pondok Pinang, which is located on Jl. Ciputat Raya No.80 Pondok Pinang, South Jakarta, in customer service using an android application called HONDA e-Care. HONDA e-Care is very helpful in making it easier for consumers to access Honda service services. With the Honda e-Care application, customers online carry out ordering services, traffic notification of periodic maintenance schedules, and look on digital to find dealers with the closest distance from the location. But consumers often also get security such as when making an order service but ordering service that is not showing up. Research on the quality of the Honda e-Care application has yet to be carried out. This study aims to measure the usability of the HONDA e-Care android application and provide suggestions for developing the HONDA e-Care application in the future. Based on the gap analysis, it was found that in general the use of the HONDA e-Care android application on the Honda Pondok Pinang was not satisfied with the quality of the current applications. With the IPA analysis, the priority scale for improving the quality of the HONDA e-Care android application is mapped where quadrant I is the priority scale based on the user's perspective, namely: The HONDA e-Care android application is easy to operate; The search facility on the HONDA e-Care android application is functioning properly; The HONDA e-Care android application is easy to download; Image symbols on the HONDA e-Care android application easy implementation; and Access product information on the HONDA e-Care android application is easy to obtain. Managers must increase the four items in order to meet user expectations.  
ANALISIS KELAYAKAN INVESTASI DANA HAJI UNTUK PEMBANGUNAN PROYEK INFRASTRUKTUR JALAN TOL JAKARTA - CIKAMPEK II ELEVATED
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3594

Abstract

Increasing the welfare of the Indonesian people, especially Muslims, encourages them to carry out religious activities that require financial readiness, namely the pilgrimage. The enthusiasm of Indonesian Muslims to register for Hajj is not comparable to the available quota, which results in a longer waiting time for Hajj departures. The registrants for prospective pilgrims have increased every year. There are 3,797,376 applicants who wish to carry out the haj pilgrimage until June 2018, while the annual quota provided for Indonesia is only 210,000 people. As a result, there has been an increase in the deposition of funds for the initial deposit of prospective pilgrims in the Ministry of Religion's accounts, until March 2018 it has collected as much as IDR 105,191,372,936,614. This study aims to assess whether the hajj funds are worth investing in toll road infrastructure projects. Starting from problem identification to calculating investment feasibility to cooperation agreements in managing Hajj funds with Islamic banks with the Musyarakah Mutanaqishah agreement scheme. to finance toll road infrastructure projects. The capital budgeting method is used to calculate investment feasibility, so it can be seen that the NPV value is IDR 54,805,724,000,000 then the IRR value is 62%, BCR is 3.61, and the payback period is 12 years. With this assessment, it is worth investing in the hajj funds for the users of the Jakarta - Cikampek II Elevated toll road infrastructure project.  
PENGARUH PARAMETER PROSES TERHADAP DIMENSI CASING GEAR DENGAN PRODUKSI MENGGUNAKAN TEKNOLOGI 3D PRINTER DLP (DIGITAL LIGHT PROCESS) Dicky Seprianto; Ahmad Zamheri; Almadora Anwar Sani; Nanda Yusril Mahendra
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3614

Abstract

DLP (Digital Light Process) 3D Printer Technology is a 3 dimensional printing machine made from resin with a lighting system using a light projector with a layer-by-layer printing process. In this research, the writer will make an object, which is one of the machining components, namely the gearbox casing. In this study the authors will analyze the effect of process parameters (exposure time, off time, and their interaction) on the dimensions of the printout and get the most optimal parameters to be applied to components or printing objects. In conducting testing, the measurement of the tester’s dimensions uses the Krisbow KW06-422 calipers. Then the measurement data is processed by the Anova method with the help of software design expert version 10. After the research process obtained the results that the most influential parameters are the interaction factor between exposure time parameters and off time parameters on the dimensions of the printed objects, and the most optimal combination of parameters is found in the exposure time parameters 10 second and off time 1 second with a level of precision of 95%.
Simulasi Numerik Kendali Kapal Cepat Tak Berawak Dua Propeller Tanpa Rudder Muhammad Arifudin Lukmana; Qisthi Alhazmi Hidayatur-Rohman; Fahrudin Fahrudin; Noverdo Saputra
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3624

Abstract

This paper discusses the simulation of automation control and hull manufacturing on a fast boat. This high-speed boat that will be carried out for fish mapping. This study uses a numerical simulation to predict its motion. The experiment was carried out 3 times in forward motion, and 3 times in turn motion. The ship’s time and movement in ideal conditions will be recorded for each experiment. With the PID value for forward overshoot with values such as: 8.94%, 30.86%, and 40.60%, while turning overshoot is obtained, among others: 25.77%, 49.82%, and 61.15% Then the advanced settling time obtained includes: 0.91 seconds, 3.84 seconds, and 5.31 seconds. The settling time for turns is: 1,022 seconds, 0.85 seconds, and 0.84 seconds These values are obtained from the simulation graph of the three-dof formulas for surge, sway, yaw.
RANCANG BANGUN KOMPONEN UTAMA PLTS OFF-GRID UNTUK MENUNJANG OPERASI INCINERATOR SIPESAT® Noor Hidayati; Arifia Ekayuliana
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.3892

Abstract

To increase reliability of SIPESAT® Incinerator, off-grid solar powerplant was installed. The aim of this paper is to designing the requirement of the main equipment for the solar powerplant. 270 w, 3 autonomies days were used as the main parameter. GHI gathered from NASA’s data, VRLA battery type with MPPT inverter type was chosen to design the solar powerplant system. based on calculation results, the solar powerplant system need two solar panels 150watt each, and two VRLA battery 24V 200 Ah each,
ANALISIS PENILAIAN PROPERTI KOMERSIAL (Studi Kasus : Villatel dan Condotel X, Kabupaten Bogor): (Studi Kasus : Villatel dan Condotel X, Kabupaten Bogor) Tegar Wibowo; Ida Ayu Ari Anggreni
Jurnal Poli-Teknologi Vol. 20 No. 2 (2021)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v20i2.4378

Abstract

The economic development of Indonesia from year to year, especially in terms of tourism developments and also the supporting factors that are Condotel, Villatel, and other lodging places. Given the promising business opportunity in terms of commercial properties in the field of tourism support, thus causing a large number of entrepreneurs who intend to build the commercial property, but before building a commercial property required the proper calculation and estimate of funds, the estimate of the market price and also the time period of sales estimates on the future commercial property will be sold, where the value of this market is also used by a Bank in determining the amount of funds that can be approved if there is a commercial On the basis of this research will examine the market value and the value of the liquidation of commercial properties, especially on the commercial properties of Villatel and Condotel using the method of income approach and cost approach. The results of research obtained after the thorough calculation of Condotel and Villatel obtained the market value of Rp. 145 950 000 000, while the value of liquidation or forced selling value of Rp. 102 165 000 000. The liquidation value is less than the market value due to the value of liquidation is 70% of the nominal market value.

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