Jurnal Optimasi Sistem Industri最新文献_第4页

A Hybrid Model for Green Supplier Selection and Order Allocation: DEMATEL, ANP, and Multi-criteria Goal Programming Approach 绿色供应商选择与订单分配的混合模型:DEMATEL、ANP和多准则目标规划方法

Jurnal Optimasi Sistem Industri Pub Date : 2021-11-29 DOI: 10.25077/josi.v20.n2.p147-155.2021

D. M. Utama, Anindya Apritha Putri, I. Amallynda

{"title":"A Hybrid Model for Green Supplier Selection and Order Allocation: DEMATEL, ANP, and Multi-criteria Goal Programming Approach","authors":"D. M. Utama, Anindya Apritha Putri, I. Amallynda","doi":"10.25077/josi.v20.n2.p147-155.2021","DOIUrl":"https://doi.org/10.25077/josi.v20.n2.p147-155.2021","url":null,"abstract":"Increased competition in the industrial world forces companies to increase their competitiveness through Green Supply Chain Management (GSCM). The key to the success of GSCM is the selection of suppliers and the allocation of the proper order by taking into account environmental aspects. This decision involves several criteria and must also pay attention to the relationship between criteria. This study proposes a hybrid procedure to solve Green Supplier Selection and Order Allocation (GSSOA). The integration of Decision Making Trial and Evaluation Laboratory (DEMATEL), Analytic Network Process (ANP), and Multi-Criteria Goal Programming (MCGP) are proposed to solve this problem. The DEMATEL is used to calculate the relationship between criteria. Furthermore, the ANP is proposed to determine the weight of the criteria and supplier ranking. Finally, the MCGP method is offered for allocating orders based on priority suppliers. A case study on the food industry in Malang, Indonesia, was conducted to apply this procedure. The results showed that the low defects rate criterion is the most important compared to other criteria. The best supplier was successfully selected, and the order allocation was completed. Order allocation priority is to suppliers D, C, A, and B. This study also presents a sensitivity analysis for order allocation.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48361182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Proposing Electric Motorcycle Adoption-Diffusion Model in Indonesia: A System Dynamics Approach 提出印尼电动摩托车采用-扩散模型:系统动力学方法

Jurnal Optimasi Sistem Industri Pub Date : 2021-11-29 DOI: 10.25077/josi.v20.n2.p83-92.2021

D. Sulistyono, Y. Yuniaristanto, W. Sutopo, M. Hisjam

{"title":"Proposing Electric Motorcycle Adoption-Diffusion Model in Indonesia: A System Dynamics Approach","authors":"D. Sulistyono, Y. Yuniaristanto, W. Sutopo, M. Hisjam","doi":"10.25077/josi.v20.n2.p83-92.2021","DOIUrl":"https://doi.org/10.25077/josi.v20.n2.p83-92.2021","url":null,"abstract":"In 2019, the number of conventional vehicles in Indonesia reached 133,617,012 units, dominated by motorcycles of 112,771,136 units and passenger cars of 15,592,419 units. The high number of conventional motorcycle users can increase the number of pollutants and combustion emissions in the environment. This condition has encouraged the transition to a sustainable transport system that will be needed for decades to come, especially for the electric motorcycle to resolve the issue. This research aims to predict and estimate the market share of electric motorcycles by considering life cycle cost per kilometer. System dynamics simulations are developed to model the adoption-diffusion of electric motorcycles in Indonesia. This model has four main modules: an electric motorcycle module, a conventional motorcycle module, an economy module, and a consumer market module. This model shows a positive trend of EM market share from 2021-2030, with the market share value of EM is 0,411 in 2030. The development of retail price subsidy and electricity price scenarios is also carried out to determine the right policies to accelerate the adoption-diffusion process. Based on the scenario, the provision of retail price subsidy and a decrease in electricity price can increase the value of the EM Market Share.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43425001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Spare Parts Supplier Selection Design: A Case Study of A Railway Company 备件供应商选择设计:以某铁路公司为例

Jurnal Optimasi Sistem Industri Pub Date : 2021-11-29 DOI: 10.25077/josi.v20.n2.p125-135.2021

Robby Ady Asmara, L. H. Kusumah

{"title":"Spare Parts Supplier Selection Design: A Case Study of A Railway Company","authors":"Robby Ady Asmara, L. H. Kusumah","doi":"10.25077/josi.v20.n2.p125-135.2021","DOIUrl":"https://doi.org/10.25077/josi.v20.n2.p125-135.2021","url":null,"abstract":"Spare parts support is essential for rolling stock maintenance management. The current supplier selection model determines the selected supplier based on evaluating one aspect of the criteria (product aspect). The selection of suppliers with poor performance occurred between 2018-2020 related to the delivery of goods that exceeded the deadline and goods that did not meet specifications. The first objective of this research is to analyze and determine the relevant priority criteria for selecting suppliers of rolling stock spare parts for railway companies. The second objective is to determine the rolling stock spare parts supplier by using the evaluation criteria determined in the previous process. The method used in this research is the integration of the Fuzzy Delphi Method (FDM), Analytical Hierarchy Process (AHP), and Technique for Others Preference by Similarity to Ideal Solutions (TOPSIS). FDM is used to select important criteria for the selection of suppliers of rolling stock parts. AHP is used to assist in choosing various criteria through evaluation in determining the criteria's weight. TOPSIS is used to assess supplier ratings. A total of 13 criteria from 19 alternative criteria have been selected for railway companies, especially in selecting rolling stock spare parts suppliers. Furthermore, the selection becomes the basis for bidding. Finally, Supplier A is the supplier with the highest relative closeness value (0.591), followed by Supplier B (0.545), and the lowest is Supplier C (0.282).","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47511382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ergonomic Evaluation on Chicken Feeder Tool at Egg-Laying Chicken Farm SME 蛋鸡场中小企业喂鸡器的工效学评价

Jurnal Optimasi Sistem Industri Pub Date : 2021-05-18 DOI: 10.25077/JOSI.V20.N1.P52-60.2021

N. T. Putri, E. Amrina, D. Fatrias, I. Kamil, N. Humaida

{"title":"Ergonomic Evaluation on Chicken Feeder Tool at Egg-Laying Chicken Farm SME","authors":"N. T. Putri, E. Amrina, D. Fatrias, I. Kamil, N. Humaida","doi":"10.25077/JOSI.V20.N1.P52-60.2021","DOIUrl":"https://doi.org/10.25077/JOSI.V20.N1.P52-60.2021","url":null,"abstract":"This research aims to evaluate the egg-laying chicken feeder that was designed at egg-laying chicken farm small and medium enterprise (SME). The main reason of this tool design was due to the worker’s complain of feeling pain during the feeding process. Evaluation was performed based on Nordic Body Map questionnaire result, physiological workload, and NIOSH lifting equation calculation. The observed work ranged from the feed filling in the basket until all feeds were distributed. The results showed that the %CVL was in the range of 18%-30% and the energy consumption of workers was in the range of 1.24-3.00 Kcal/minute. Thus, physiologically, the work activities carried out by the feed workers were categorized as very light workload. Meanwhile, evaluation using Lifting Index (LI) methods in the process of feeding showed the LI value ranged from 0.9-1, therefore this activity is safe to perform manually. Based on the prototype evaluation on the feeding aid, the process of feeding activities was more effective 1.5 times faster than the old tools. In addition, with the use of this new tool, the feeding process was easier to adjust the dose each time.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45385428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Risk Assessment during Covid-19 and Learning from Home: Evidence from University Students in Indonesia 新冠肺炎期间的风险评估和在家学习：来自印度尼西亚大学生的证据

Jurnal Optimasi Sistem Industri Pub Date : 2021-05-18 DOI: 10.25077/josi.v20.n1.p42-51.2021

H. R. Soetisna, A. Widyanti, Airin Syafira, D. A. Pujiartati

{"title":"Risk Assessment during Covid-19 and Learning from Home: Evidence from University Students in Indonesia","authors":"H. R. Soetisna, A. Widyanti, Airin Syafira, D. A. Pujiartati","doi":"10.25077/josi.v20.n1.p42-51.2021","DOIUrl":"https://doi.org/10.25077/josi.v20.n1.p42-51.2021","url":null,"abstract":"COVID-19 pandemic has become an international concern. Policies to prevent the spread of disease, such as learning from home, are applied to university students. The present study examines the risk assessment in relation to physical, mental, and psychosocial condition of Indonesian students toward COVID-19 and learning from home. This study involves 838 Indonesian students. A questionnaire consisting of demographic data and constructs from a comprehensive literature study regarding COVID-19 related issues and learning from home issues was developed. Most Indonesian student respondents have a good knowledge of COVID-19 and have received accurate information from the government. The anxiety level during COVID-19 is mild. In relation to physical condition, most students reported musculoskeletal symptoms in the neck, shoulder, and back areas. The respondents conduct preventive behavior against COVID-19 spread, with lack of physical exercise. In relation to mental and psychosocial condition. In relation to mental and psychosocial condition, respondents report moderate mental workload and proper social support from lecturers and friends. In conclusion, most Indonesian university students have a good knowledge and proper attitudes toward COVID-19 and learning from home, which are important in combating and passing through the pandemic.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47859562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Cover & Preface JOSI 20(1) 2021 封面和前言JOSI 20（1）2021

Jurnal Optimasi Sistem Industri Pub Date : 2021-05-18 DOI: 10.25077/JOSI.V20.N1.P1-71.2021

H. Zadry

引用次数: 0

Lean Analysis Framework for Waste Management: A Case of Indonesian Textile Company 废弃物管理的精益分析框架:以印尼纺织公司为例

Jurnal Optimasi Sistem Industri Pub Date : 2021-05-18 DOI: 10.25077/JOSI.V20.N1.P11-21.2021

Widyatmoko Reza Prambudi, Ida Giyanti

{"title":"Lean Analysis Framework for Waste Management: A Case of Indonesian Textile Company","authors":"Widyatmoko Reza Prambudi, Ida Giyanti","doi":"10.25077/JOSI.V20.N1.P11-21.2021","DOIUrl":"https://doi.org/10.25077/JOSI.V20.N1.P11-21.2021","url":null,"abstract":"This study aims to propose a lean analysis framework for waste management and to test it into the field case. The proposed framework was applied in a weaving process of a textile company in Indonesia. The seven classical Lean wastes were identified using value str e am mapping (VSM). The result was then analyzed using the waste assessment model within which waste relationship matrix (WRM) and waste assessment questionnaire (WAQ) according to the answers of the head of weaving division studied. The major source of wastes was then determined utilizing the value stream analysis tool (VALSAT). In order to thoroug h ly examine the root cause of such dominant wastes and to propose corrective plans to minimize the waste, a fishbone diagram was used. As the main result, this study provides a lean waste analysis framework with examples to orientate managers about wastes. Particula r ly in our specific case, the results demonstrate that the waiting and defect become the most significant wastes that need to be treated. These findings allow a company to organize its activities and select tools or practices to optimize its efforts to create proper corrective plans in eliminating waste. In our study, the plans include periodic maintenance of weaving machines, clear division of tasks on the distribution of weft yarns, and eliminating unnecessary activities. In addition, it is mandatory to ensure the quality of warp yarns delivered to the weaving process as well as to perform a periodic calibration of equipment on weaving machines. This study advances in the theoretical and practical field by showing a structured way to incorporate lean analysis that can be adopted for any organization.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":"20 1","pages":"11"},"PeriodicalIF":0.0,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48747155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Particle Swarm Optimization Algorithm to Solve Vehicle Routing Problem with Fuel Consumption Minimization 粒子群算法求解油耗最小的车辆路径问题

Jurnal Optimasi Sistem Industri Pub Date : 2021-05-18 DOI: 10.25077/JOSI.V20.N1.P1-10.2021

Baiq Nurul Izzah Farida Ramadhani, A. Garside

引用次数: 3

Recycling Solid Waste of Coconut Oil Industry: A Response Surface-Goal Programming Approach 椰子油工业固体废物回收:响应面-目标规划方法

Jurnal Optimasi Sistem Industri Pub Date : 2020-11-20 DOI: 10.25077/josi.v19.n2.p111-121.2020

Dwi Agustin Nuriani Sirodj, I. Gunawan

{"title":"Recycling Solid Waste of Coconut Oil Industry: A Response Surface-Goal Programming Approach","authors":"Dwi Agustin Nuriani Sirodj, I. Gunawan","doi":"10.25077/josi.v19.n2.p111-121.2020","DOIUrl":"https://doi.org/10.25077/josi.v19.n2.p111-121.2020","url":null,"abstract":"Waste minimization is a key success factor to achieve sustainability, including in the edible oil industry. One type of solid waste produced substantially in this industry is spent bleaching earth (SBE), which comes from a mixture of bleaching earth (BE) and activated carbon (CA) used in the edible oil refining process. SBE that is recycled through a heating process is known as heat regenerated SBE (HRSBE). The process is influenced by two factors as stated in previous studies: temperature and time. In the current study, we report the results of experiments to find the optimal combination of temperature and time in restoring the absorbent quality of SBE by observing four quality parameters: colors (red and yellow), Free Fatty Acid (FFA), and Peroxide Value (PV). The current study uses Response Surface Methodology (RSM) to design the experiments and to find the equations of the relationship between the factors for each response; as well as Goal Programming (GP) to find the most optimal combination of factors in order to achieve aggregated quality targets. The findings show that 3.414 hours of heating at a temperature of 151.64oC allow HRSBE to produce coconut oil in accordance with the expected quality targets.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42623392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Manajemen Perawatan Menggunakan Metode RCM di Mesin Produksi Kertas RCM方法在造纸机中的应用

Jurnal Optimasi Sistem Industri Pub Date : 2020-06-07 DOI: 10.25077/josi.v19.n1.p12-21.2020

Hery Hamdi Azwir, A. Wicaksono, Hirawati Oemar

{"title":"Manajemen Perawatan Menggunakan Metode RCM di Mesin Produksi Kertas","authors":"Hery Hamdi Azwir, A. Wicaksono, Hirawati Oemar","doi":"10.25077/josi.v19.n1.p12-21.2020","DOIUrl":"https://doi.org/10.25077/josi.v19.n1.p12-21.2020","url":null,"abstract":"One of the leading manufacturers in packaging paper in Indonesia has six production machines. To keep the production machine always in the best condition, then the role of maintenance is significant. One of the production machines, namely paper production machine 2 (PM2), has experienced increasing the number of breakdowns significantly, resulting in increased downtimes. Sudden failure causes a lengthy repair time and results in considerable production loss. The corrective maintenance method that is running at this time still not effectively reduce downtime. To minimize the number of downtimes, preventive maintenance is needed, and therefore the Reliability Centered Maintenance (RCM) method is selected. Besides applying quantitative analysis such as Mean Time To Repair (MTTR), Mean Time To Failure (MTTF), reliability, and preventive cost calculations. This method also conducts qualitative analysis such as Functional Block Diagrams (FBD), critical engine analysis, Fault Tree Analysis (FTA), and Failure and Mode Effect Analysis (FMEA). After implementing the preventive maintenance, there is an increase in reliability in the sub-system of the press section of the paper production machine 2 from only 43% to 56%, while the repair cost has been reduced by Rp 393,258,670 from Rp 5,724,825,736 to Rp 5,331,567,066 each time replacement of components in the press section. This decrease in costs will contribute to the profits earned by the company because it saves maintenance costs.","PeriodicalId":30702,"journal":{"name":"Jurnal Optimasi Sistem Industri","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47567744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2