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INDONESIA
PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Published by Politeknik Perkapalan Negeri Surabaya
ISSN : -     EISSN : 26548631     DOI : https://doi.org/10.33863/cdma.v8i1.2898
Core Subject : Science, Engineering,
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
The aim of the Conference on Design Manufacture Engineering and Its Application (CDMA) is to provide a scientific platform for researchers, academics, and professionals to share and disseminate original research, innovative ideas, and practical developments in the fields of design engineering, manufacturing technology, and their multidisciplinary applications. CDMA welcomes the submission of theoretical and empirical papers that aim to advance knowledge, challenge conventional practices, and offer new insights into areas such as product design, manufacturing systems, industrial automation, materials engineering, and related domains. Submissions may employ various methodological approaches, including experimental research, modeling and simulation, qualitative studies, and data-driven analysis.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 306 Documents
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Optimalisasi dan Penyelesaian Job Shop Scheduling Problem dengan Metode Algoritma Genetik (Studi Kasus Injection Mould Base Tumbler Upper Cap di PT. Berlina Tbk Pandaan, Pasuruan) Niko Aditya; Rina Sandora; Endang Pudji Purwanti
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Abstract

PT. Berlina Tbk Pandaan is a plastic packaging and mold maker company with a make to order production system especially at the Mold Shop Department with job shop production flow. From the scheduling system, production delays often occur. Injection Mold Base for Tumbler Upper Cap products was chosen as the object of research with a delay of 7 weeks. The purpose of this study is to determine the sequence of job operations flow by minimizing tardiness and makespan using the Genetic Algorithm method so as to produce optimum scheduling. The analysis of this study involved 37 jobs with 24 different machines. Calculations on the Genetic Algorithm method using Microsoft Excel and MATLAB R2012b media. From the calculation of the Genetic Algorithm method produces tardiness value of 0 hours, makespan 134.125 hours, and the highest fitness value of 2.3126. While scheduling the company produces a value of tardiness of 589.8750 hours and makespan of 195.125 hours. Then this method is able to minimize 100% tardiness and 31% makespan of company scheduling. While the operating flow of the resulting job is: 25-14-11-26-6-18-23-36-31-5-4-1-13-33- 8-35-32-12-34-7-3- 28-17-15-29-2-22-27-9-30-19-21-37-16-24-20-10.
Optimalisasi Waktu Dalam Pembangunan Blok P1701/1702 Pada Kapal Cruide Oil Tanker Di PT. Daya Radar Utama Unit Lamongan Oktavian Perdana Putra; Endang Pudji Purwanti; Fipka Bisono
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
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Abstract

PT Daya Radar Utama is one of the shipyards that has a prominent quality in the design of several shipyards in Indonesia. In meeting the needs of consumers, the company certainly has an estimated duration of project implementation and good human resource planning. That is, the project must be completed before or on the specified time. In estimating work time and productivity, optimization is needed. Optimization analysis of project time is used to find out how long it will take for a project to be completed and to look for the longest possible time in project imple-mentation with the PERT (Project Evaluation and Review Technique) and CPM (Critical Path Method) methods. From the results of the critical path analysis using network planning, it is found that the longest time needed to complete the work for the construction of Block P 1701/1702 on the Cruide Oil Tanker is based on the calculation of the critical path which is 4728.2 minutes, while the average time is optimistic and pessimistic. in the completion of the project for 4723.63 minute. From the normal time the work productivity is calculated to determine the work-load of each activity, namely the initial blasting work at 6707.8 kg / hour, marking plate work at 6030.3 kg / hour, cutting plate work 2072.9 kg / hour, work bending plate of 53783.7 kg / hour, welding T joint (SMAW) work 4942.05 kg / hour, Weld-ing Butt Joint (FC
Optimasi Penjadwalan Produksi High Pressure Heater dengan Metode Algoritma Jadwal Non Delay pada PT. PAL Indonesia (Persero) Laili Shulfiani; Renanda Nia Rachmadita; Aditya Maharani
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
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Abstract

Scheduling is an important thing. Scheduling systems that are not suitable will have an impact on delays in the production process and delivery times. Such as problems in the High Pressure Heater production process in General Engineering division of PT. PAL Indonesia, there is a considerable inadequacy of the duration between actual production and planned production. In this study, it tries to apply and compare the proposed method of Non Delay Schedule Algorithm with the company scheduling. So from the choice of method, it is expected to produce an optimal makespan, minimize costs, and increase machine utility. Non Delay Algorithm scheduling produces sequences based on the smallest start time is Leg – Baffle Block – Head1 – Shell Skirt – Head2. While the sequences based on the completion time is Leg – Head1 – Head2 – Shell Skirt – Baffle Block. The scheduling sequence produces makespan of 589.70 hours and can minimize makespan from the company scheduling by 35.60% or equivalent to 326.07 hours. The mean shop utility in Non-Delay Algorithm scheduling has increased by 5.04% compared with company scheduling. In addition, costs of NonDelay Algorithm method decreased by 46.16% or Rp. 12,440,314, - more economical than company scheduling.
OPTIMASI MAKESPAN PADA PENJADWALAN PRODUKSI KOMPONEN PANEL FUEL DENGAN METODE SHIFTING BOTTLENECK HEURISTIC DI PERUSAHAAN PENERBANGAN Azhari Ridhwan; Dra. Endang Pudji Purwanti, M.T.; Renanda Nia Rachmadita, S.T., M.T.
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
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Abstract

The fuel component panel has three parts relating to its delivery. Upon request, the three components must be shipped together. Based on the airline's production process, including the work shop flow. In the production process, Airline Companies often experience shipping errors caused by production errors. For production scheduling, Airline Companies use the First Come First Served (FCFS) system. This research was conducted to obtain the optimal makespan value. The results of research conducted using the Shifting Bottleneck Heuristic method obtained makespan value of 22716.12 minutes = 378.60 hours. Scheduling using the Shifting Bottleneck Heuristic is able to minimize the production time of 336.96 minutes = 5,616 hours. Scheduling with the longest sequence occurs on machine (m70) with job sequence j37 - j12 - j13 - j25 - j26 - j2 - j5 - j9 - j22 - j16 - j10 - j11 - j23 - j24 - j7 - j20 - j17 - j18 - j19 - j30 - j31 - j32 - j1 - j4 - j14 - j15 - j27- j28 - j29 - j6 - j3 - j21 - j34 - j8 - j36 - j38 - j40 - j35 - j39.
Evaluasi Penjadwalan Proyek Waste Water Treatment Plan Menggunakan Metode Precedence Diagram Method dan Crashing Renata Alvita Loka Leonsi; Renanda Nia Rachmadita; Aulia Nadia Rachmat
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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Scheduling is needed to run the project optimally, efficiently and according to the planned schedule. There are several factors that make the project late. The causes are ineffective working hours, late arrival of materials, and high work productivity. Waste water treatment plan is one of the manyprojects undertaken by PT.Samudra Mas Nusantara. In this project there was a delay of 34 days from the planned duration of 75 days to 109 days. The scheduling method used is the Precedence Diagram Method. The duration of project completion is accelerated by analyzing the acceleration of eachactivity. The s-curve is used to see the progress of the project each week. The results of the research show that there is 1 critical path, namely the path with activities A-B1-B2-C1-C2-D111-D121-D131- D141-D21-D22-D23-D24-D25-E1-E4-F-G-H. The duration of the activity can be accelerated by 35 days from 109 days to 74 days with an increase in costs of 3.03% from Rp.1,822,201,012- up to Rp1,877,287,312,-.
Analisis Holder C-Hook dengan Metode Elemen Hingga Abi Rafdi Haidi; Budianto Budianto; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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This study, an analysis of the construction of the c-hook holder will be carried out with ASTM A36 material, to determine the strength of the c-hook holder structure. The analysis process uses the FEM (Finite Element Methods) approach using FEM-based software. The validity of the simulation results is carried out on the value of the results of the von misses stress and deflection. Validation of the simulation results is done by manual calculations. From the results of the analysis, it is known that the stress that occurs at a predetermined load using ASTM A36 material is 180 MPa. The results of the analysis of the deflection that occurs in ASTM A36 material is 0.39 mm. From the results of the safety factor analysis, the safety factor value was 1.3. From the results of the analysis, the stress, deflection, and safety factor using the material are still below the predetermined limits, so that the c-hook holder construction can be said to be safe. Based on the results of the design and analysis that has been done, it can be concluded that the c-hook holder with ASTM A36 material can be used and has high security.
EFEK SINERGIS ALUMINA TRIHYDRATE DAN MELAMINE CYANURATE TERHADAP SIFAT KUAT TARIK GLASS FIBER REINFORCED POLYMER Ridha Inayah; Wiwik Dwi Pratiwi; Rizal Indrawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
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Glass Fiber Reinforced Polymer, commonly known as GFRP, is that as a train interior component, it must have good mechanical properties. The addition of flame retardant compounds contained in GFRP materials can affect the tensile strength of GFRP materials. In this study, GFRP composed of Alumina Trihydrate (ATH) and Melamine Cyanurate (MCA) powder was mixed into a vinyl ester resin. The method of making GFRP specimens uses the hand lay-up method. GFRP was mixed and tested for material with ASTM D-638 standard tensile test. The results obtained after the addition of 25% ATH, a mixture of 5%, 10%, and 15% MCA at 25% ATH, 25% ATH in the outermost layer, and a mixture of 5% MCA with 25% ATH in the outermost layer to the weight of the resin was a decrease in strength when the percentage of filler powder increases. Tensile strength, strain, and modulus of elasticity of GFRP were optimum at the addition of 25% ATH with 5% MCA to the weight of the resin in the outer layer. The result of tensile strength is 124.37 MPa, strain is 12.76%, and modulus of elasticity is 975.85 MPa. The results show that a mixture of ATH and MCA has a synergistic effect, so that it becomes a recommendation for interior sidewall panels and ceiling panels on trains.
Analisis Struktur C-Hook SWL 30 Ton Menggunakan Metode Elemen Hingga Dymaseka Nasbih Sabbilli; Pranowo Sidi; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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In this study, C-Hook construction analysis with SWL capacity of 30 tons will be conducted by comparing AISI 1020, ST-52 DIN 17100, ASTM A572, materials to determine the strength of CHook structure. The analysis process will use FEM (fenite element methods) approach using FEMbased software. The validity of the simulation results is carried out on the value of the result of the von misses voltage, and deflection. Validation of simulation results is done by manual calculation. The load used is 30 tons. From the results of the analysis it is known that the voltage that occurs in the loading of 30 tons in AISI 1020 material is 164,23062 Mpa, the voltage that occurs in the loading of 30 tons in ASTM A572 material is 164,32478 Mpa, and the voltage that occurs in the loading of 30 tons in the material ST52 DIN 17100 is 164,32195 Mpa. The results of the deflection analysis that occurred in the material AISI 1020 is 10,497 mm, the analysis of deflections that occurred in ASTM A572 materials is 10,695 mm, and the results of the deflection analysis that occurred in the material ST52 DIN 17100 is 10,252 mm. From the results of deflection analysis on all three materials are still below the limit, so the construction of C-Hook can be said to be safe. Based on the results of the design that has been done, it can be concluded that the material ST52 DIN17100, is the best choice and has high security to produce C-Hook.
Perancangan Dudukan Outboard Engine sebagai Sarana Penunjang pada Laboratorium Outboard Engine Politeknik Perkapalan Negeri Surabaya Aloysius Yudhistira Adi Nugraha; George Endri Kusuma; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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The outboard motor mount is an important piece of equipment when building an outboard motor workshop or laboratory. The outboard motor mount is needed because it is not possible to learn about the motor components with the motor attached to the hull of the boat. Therefore, it is necessary to design an outboard motor holder that fits the lot size and can be moved to facilitate the testing of the outboard motor in the test pool located outside the laboratory building. The design is carried out by making 3 models of the seat frame using the Ulrich method and Finite Element Analysis to analyze the strength of each concept. Rapid Upper Limb Assessment is used to analyze the ergonomic aspects of the three concepts. Based on Finite Element Analysis, it is known that the safety factors of concept 1, 2 and 3 are 1,985, 1,689 and 1,860 respectively. The results of the Rapid Upper Limb Assessment analysis show that the three concepts have a final score of 3. Based on the priority scale table with the criteria of evaluating manufacturing costs, ergonomics, flexibility, mass, ease of manufacture and ease of assembly, score concept 1,2 and 3 are 24%, 25% and 29% repectively. From this value, the selected concept is concept 3 as shown in the detailed drawing attachment A.
Analisis Pengaruh Variasi Penambahan Fly Ash terhadap Kekuatan Tarik Komposit Serat Sabut Kelapa sebagai Alternatif Material Dinding Ruang Akomodasi Interior Kapal Virgiana Kusuma Pratiwi; Mohamad Hakam; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
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Indonesia is a maritime country so that ships are transportation that supports economic movement. The government's policy of prioritizing the maritime sector in national development has a positive impact on the domestic shipping industry. The shipping industry over time considered the use of composites as a substitute for wood. This innovation is expected to be environmentally friendly because it is a way of treating waste. The lack of use of coco fiber and fly ash as plantation waste and industrial fuel combustion can be used as opportunities for new environmentally friendly raw materials. It is necessary to use coconut fiber as an alternative natural fiber to synthetic fiber as a reinforcing element from fly ash as a filler in the manufacture of composites. Coconut coir fiber as a reinforce was delignified using 5% NaOH for 120 minutes to reduce the lignin content in the fiber. Analysis of the strength of mechanical properties through tensile tests in accordance with ASTM D638-14 on composite specimens with variations in the addition of reinforcement as much as 10% and 30%, and various variations in the percentage of adding fly ash of 0%, 5%, and 15% to the reinforce. The variation of the composite mixture to the highest tensile strength was obtained by adding 30% reinforce. Specimen 9 with fly ash filler of 15% produced a tensile strength of 27.09 MPa. The mixture of adding reinforcement and filler substitution in coconut fiber composites has a strengthening effect on the tensile strength of the composite. The resulting composite can be used for bulkhead wall material for ship interior accommodation in accordance with SNI 01-4449-2006 regarding fiberboard.

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