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All Journal J@TI (TEKNIK INDUSTRI) Jurnal Infra Jurnal Titra Jurnal Sistem dan Manajemen Industri Dimensi Utama Teknik Sipil Indonesian Journal of Multidisciplinary Science Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri
I Gede Agus Widyadana
Master Of Industrial Engineering Departement, Petra Christian University
Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Transportation

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Perbaikan Tata Letak Fasilitas dengan Pendekatan Simulasi dan Evolutionary Algorithm pada Segmen I PT X Aloysius Fung Elnino Senatra; I Gede Agus Widyadana
Jurnal Titra Vol 10, No 1 (2022): Jurnal Titra Januari 2022
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PT X is a circuit breaker company that produces various types of products. There are several production segments and each segment are used to produce one product type. PT X has conducted an evaluation of the facility layout in segment I, and found the need to improve the facility layout. Shortcomings of the current layout are the arrangement of several facilities, which located outside of the available area for segment I. The arrangement of new production layout, however, should not reduce production output. Production facility re-layout is costly; therefore, simulation is used to analyze the proposed layout. Simulation approach is used to compare the initial layout against the proposed layout. The simulation model was built using Promodel 10 software, with a simulation time of 22.5 hours and replicated for 25 times. The proposed layout is derived using an evolutionary algorithm method, with adjustment in respect to some constraints from the initial layout. The proposed layout can answer the needs of segment I, because there are no facilities that exceed the specified area and result in more products in a day than the initial model.
Usulan Perbaikan Pengiriman di PT. X untuk Mengurangi Lama Lembur Pekerja Brian Farrel Ponda; I Gede Agus Widyadana
Jurnal Titra Vol 8, No 2 (2020): Jurnal Titra 8(2) Juli 2020
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PT. X has a problem with overtime and delivery costs not being met. This problem is caused by PT. X did not have enough cars to meet his demand. For example, in shipments made in August 2019 where PT. X is 376,515 goods but the successful shipment was carried out by PT. X is only 200,743 items. This causes every car of PT. X has to ship more than once to be able to fulfill the shipment. But the distance of PT. X is far, unpredictable road conditions make workers PT. X has to work overtime every day, even the average worker's overtime in June, July and August is 3 hours. In addition to the average overtime duration overtime costs to be paid by PT. X in June, July and August 2019 is Rp 175,593,867 every month. Although the workers of PT. X overtime every day PT. X still can't fulfill his request. So from this problem the research was conducted to be able to provide proposals to PT. X to be able to reduce overtime costs and to meet deliveries.
Perancangan Sistem Pemantauan untuk Meningkatkan Pencapaian Realisasi dengan Perencanaan Painting di PT X Vanessa Angela Chionardes; I Gede Agus Widyadana
Jurnal Titra Vol 10, No 2 (2022): Jurnal Titra 10(2) Juli 2022
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PT X as a company that produces various types of bicycles has problems which one of them is painting process that does not produce output on time and in the right amount according to PPIC’s schedule. Based on Fishbone Diagram and Pareto Chart analysis, the most affecting factors are method, material, and environment.  The method factor is repair work has not been monitored well so there might be work delay. The monitoring system design in this research begins with improving the flow, then continued with the making of SOP and database in Google Sheets. The average percentage of realization accomplishment with planning from February until March (before implementation) is 32.09% and it increases to 50.01% from April until May (after implementation). Monitoring system can also show painting repair team performance that is presented by the percentage of daily repair accomplishment that has an average of 72.13% in April and 52.62% in May which is still below the target.
Analisis Penyebab Lead Time Pemenuhan Pesanan dan Produksi Panjang PT X Sandra Lukita; I Gede Agus Widyadana
Jurnal Titra Vol 8, No 2 (2020): Jurnal Titra 8(2) Juli 2020
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This research was conducted to find out the cause of long lead time order fulfilment and production on PT X. Previous research conducted on the identification of key factors lead time of PT X order fulfilment with the DEMATEL method, found BOM problems namely incomplete BOM in terms of both quantity and compatibility resulting in less components so that production shutdown as one of the key factors causing the length of PT X lead time long. The BOM problem in this study is proven to be one of the factors causing lead time of PT X order fulfilment. BOM problem solving based on production balance can have a 5.3% impact the problem of production balance that causes PT X production lead time to be long. Supplier complaints in this study were also found to be another important factor that caused the lead time for PT X orders to be fulfilled. Solving supplier complaint problems based on production balance can have a 57.9% effect of solving the production balance problem which causes the PT X production lead time to be long.
Pengurangan Lead Time pada Pelayanan End-to-End Logistik melalui Analisis Value Stream Mapping pada PT. X Arnetta Milenia Tansta; I Gede Agus Widyadana
Jurnal Titra Vol 10, No 1 (2022): Jurnal Titra Januari 2022
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Speed, punctuality and service excellence are a part of the customer orientation value at PT. X. The process of container shipping at PT. X is still considered to have a lengthy lead time, and thus to bring the customer orientation value into reality, PT. X wants to reduce the current lead time and continuously improve customer satisfaction through their services. The research focuses on the selected activities with largest difference between process time and lead time, namely making delivery orders, stuffing and stripping. The result shows that the biggest wastes that occur in the process are defect and waiting. The research is conducted through mapping the whole activities involved in container shipping on current state value stream map, then followed by waste identification and root cause analysis based on the concept of seven wastes and five whys analysis.
Pengendalian Persediaan dengan Memperhatikan Pemesanan Gabungan dan Permintaan Berdistribusi Poisson di Toko X Anthonia Lubalu; I Gede Agus Widyadana
Jurnal Titra Vol 10, No 2 (2022): Jurnal Titra 10(2) Juli 2022
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This study uses the Monte Carlo simulation method by generating random numbers according to the data distribution test. This research was conducted in seven stages, the first is observation and problem identification to ascertain what are the obstacles in Store X. The second stage is literature study to become a theoretical basis that can be used in solving existing problems. the third stage is data collection, this stage is carried out by conducting interviews and asking for sales data from Store X. The next stage is data processing, the fifth stage is data validation, this stage is carried out to ensure the distribution of the data that has been obtained. The sixth stage is ordering simulation and the last stage is drawing conclusions and suggestions. The results obtained from the simulation show that the costs incurred by the Store when placing an order per product are Rp 230,713,967 while the costs incurred by Store when using a combined order is Rp 211,976,977. Based on these data, it is known that Store can save costs of Rp 18,736,896 when placing a combined order.
Pengoptimalan Jumlah Penyimpanan untuk Pengiriman Gas dengan Simulasi di PT X Felita Felita; I Gede Agus Widyadana
Jurnal Titra Vol 10, No 1 (2022): Jurnal Titra Januari 2022
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This research was conducted to analyze the causes of the problems faced by PT X. The company is currently only able to make 46% of the 84 shipments in 2018. This is caused by the accumulation of isotank in the customer's area for a long time. Therefore, the company wants to invest in the addition of permanent storage in consumer areas, simulations are needed to find out the results obtained after the installation of storage. This research was conducted using Promodel simulation software to describe the current situation. The study was conducted in 2 stages, first modeling the initial conditions to obtain a basis for the proposed model, then simulating the proposal and analyzing whether the proposal that was carried out was influential or not. Results of simulation results show that with the addition of permanent storage, the total shipments owned by the company increased to 56% and got its investment capital back after 6.1 years and have present worth value Rp943.839.385.
Analisis Penerapan Pembebasan Bea Masuk atas Impor pada PT. X Jeremia Tri Pamungkas; I Gede Agus Widyadana
Jurnal Titra Vol 9, No 2 (2021): Jurnal Titra
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PT. X is a logistical company and already has a network throughout Indonesia. PT. X has several modes of transportation to serve customers, one of which is ships. In order for the ship to continue to function properly, maintenance is needed, one of which is replacing some parts. Spare parts are usually imported from 3 countries, namely China, Japan and Korea. However, this study only focuses on imported goods from China. Imported goods will be charged with import fees by the customs. There is a way so that companies do not have to pay import duties, namely by requesting the Certificate of Origin (COO) Form E from the supplier. COO Form E is a special COO for goods imported from China. However, there are 91.49% of Form E that cannot be made in 2020. This study aims to analyze the reasons why import duties are not reduced/ exemptions, provide suggestions in order to maximize the possibility of obtaining a reduction/ exemption of import duties. The solution given is to create a checklist system created using Microsoft Excel Macro.
Perancangan Automatic Placement Order Support Tools di PT X Chelsy Sandrina Clarita Anen; I Gede Agus Widyadana
Jurnal Titra Vol 9, No 2 (2021): Jurnal Titra
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PT X is a global bicycle industry that develops, manufactures, and markets bicycles around the world. One of the brands produced by PT X is brand Y. The problem faced by the Supply Department of brand Y is the inaccuracy of scheduling and determining the number of the lot size of bicycle models in placing orders. This inaccuracy is due to a large number of models, model levels, and SKU (Stock Keeping Units) every year. The purpose of this research is to design placement orders as a supporting tool to predict the schedule and optimizing the number of order lot size in the long run. There are two methods that researcher used, which is qualitatively (by interview) and quantitatively (modeling based on data history and designing the system using Visual Basic Excel version 7.1). The result obtained by this research is the estimated order entered by the user in the system can be scheduled and optimized automatically using excel. The main conclusion that can be drawn is the design of placement orders as a supporting tool that can eliminate the inaccuracy planning of placing orders. This design has also been successfully verified and validated.
Optimasi Rute Pengiriman pada CV. X Menggunakan Metode Evolutionary Algorithm Setiadi Yulianto; I Gede Agus Widyadana; Nova Sepadyati
Jurnal Titra Vol 10, No 1 (2022): Jurnal Titra Januari 2022
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CV. X is an ice cube distributor. The company faced a problem that ice cube distribution time ussually longer than time window that has been set by the company. This research is focused on minimization delivery time therefore the total delivery time will not exceed the time window. Currently, the company operates two cars and two treecycle motorbikes. Every vehicle has more than one route every day. Therefore this research problem is Vehicle Routing Problem With Time Window. This problem is solved using the Evolutionary Algorithm method in Microsoft Excel software. The proposed routes can reduce delivery time on two different days by 9.85% and 4.02% for cars, as well as 9.85% and 11.8% on treecycle motorbikes.
Co-Authors Alexander Setiawan Alfeus, Alfeus Aloysius Fung Elnino Senatra Andree Pamungkas Anggara Jaya Anthonia Lubalu Anthony Gunadi, Anthony Arnetta Milenia Tansta Berthan, Agra Brian Farrel Ponda Chelsy Sandrina Clarita Anen Chris Hansen Christian Yoko Wijaya Christianto Felix Juwono Suganda Christine Christine Christopher Hansel Famdale Cristopall, Joan Cynthia Candradewi, Cynthia Daniel Reynald Budiman Davin Tandy Davita, Johana Kezia Debora Anne Yang Aysia DENNY KIANTO KAHUNI Didik Wahjudi Djoni Haryadi Setiabudi Edwin Hendrawan Edwin Hendrawan, Edwin Edwin Sebastian, Edwin Elisa Kevin Giovanni Elsie Elsie Emmanuelle Naomi Eleonora Njoradi Erwin Pratama Wijaya, Erwin Pratama Evan, E Felecia Felecia Felicia Saputra, Felicia Felita Felita Felix Valentino Fenny Nilawati Kusuma Ferdiarto Limantoro, Ferdiarto Fernaldi Darmasaputra Leksono, Fernaldi Darmasaputra Fianty, Bella Eka Filly Mustika Sunlo Franky Saputra Gerry Anggian Gunawan Gilbert Kelvin Widarta Gondo, Alvin Agustinus Hans Christian Haris Lienardo Herry Christian Palit I Nyoman Pujawan I Nyoman Sutapa Isaac Setiawan Iwan Halim Sahputra Jeremia Tri Pamungkas Jimmy Chang Liong Jonas Yu Karina Agustin Karine Santoso Putri Kenedy, Martino Dedy Kevin Alim Sompie Kevin Farrel Kurniawan Kevin Mangoting Lala Febriana Lay, Jordan Liem Yenny Bendatu Lucy Sanjaya Lukita, Sandra Lumanto, Jason Averell Meylinda Pramono, Meylinda Michael Gilbert Thimandalle Natasah Bunardi Nova Sepadyati Novitriana Anggraini Sudjianto Otto Pratama Patricia Angelina Dewi Philip Nathaniel Raka Arba Puspa Darmayo Randy Christian Wongso, Randy Christian Renny Olivia Sia Rey, Jonathan Richardo Caprianto Rizal Setiawan Robert Karyahastana, Robert Sandra Lukita Setiadi Yulianto Sonny Sugiarto, Sonny Stanley Surya Jaya Steffen Fang Nyoto Syarif Daniel Budiman Tanti Octavia Theresia, Juliet Vanessa Angela Chionardes VICTOR INDRAWAN Wibisono, Richard William Giovanno William Surya Wijaya Wilson Sanada