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Jurnal Ilmiah Teknik Industri
Published by Universitas Muhammadiyah Surakarta
ISSN : 14126869     EISSN : 24604038     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Ilmiah Teknik Industri is a scientific journal that aims to participate in developing the scientific field of Industrial Engineering, contains the results of research and theoretical study from lecturers, researchers and industry practitioners. Jurnal Ilmiah Teknik Industri is administered by the Department of Industrial Engineering, Faculty of Engineering, Universitas Muhammadiyah Surakarta and published by the Muhammadiyah University Press (MUP).
Arjuna Subject : -
Articles 11 Documents
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Search results for , issue "Vol. 20, No. 2, December 2021" : 11 Documents clear
Hybrid Henry Gas Solubility Optimization: An Effective Algorithm for Fuel Consumption Vehicle Routing Problem Dana Marsetiya Utama; Baiq Nurul Izzah Farida; Ulfa Fitriani; M. Faisal Ibrahim; Dian Setiya Widodo
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15640

Abstract

The depletion of non-renewable fuel reserves is the biggest problem in the logistics sector. This problem encourages the transportation sector to increase fuel efficiency in distribution activities. The fuel optimization problem in distribution routing problems is called the Fuel Consumption Vehicle Routing Problem (FCVRP). This study proposes a novel Hybrid Henry Gas Solubility Optimization (HHGSO) to solve FCVRP problems. Experiments with several parameter variants were carried out to determine the performance of HHGSO in optimizing fuel consumption. The results show that the parameters of the HHGSO algorithm affect fuel consumption and computation time. In addition, the higher the KPL, the smaller the resulting fuel consumption. The proposed algorithm is also compared with several algorithms. The comparison results show that the proposed algorithm produces better computational time and fuel consumption than the Hybrid Particle Swarm Optimization and Tabu Search algorithms.
Development of Web-Enabled Online Learning Effectiveness Model Based on Online Video Tutorial Bramantiyo Eko Putro; Rajesri Govindaraju
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.14034

Abstract

Information technology has a major impact on knowledge-sharing activities. The combination of knowledge-sharing tools such as Web 2.0 and multimedia embodied in the use of tutorial videos on web-enabled online learning is the solution. The solution is expected to improve individual performance in solving troubleshooting problems. The model was developed which explained the relationship between knowledge sharing and individual performance in troubleshooting problems and identified the factors that influence it. The research data is obtained by distributing questionnaires online to Telkomsel service users who have experienced problems troubleshooting products or services. The conceptual model was tested based on 205 samples obtained online. From the test results, it can be seen that web-enabled online learning is effective because tacit knowledge sharing that occurs directly increases individual performance while the effect of explicit knowledge sharing is mediated by tacit knowledge sharing. The factors that drive knowledge-sharing activities can influence individual performance, namely trust, IT usage, and usability.
Reliability, Availability, Maintainability, and Safety Analysis of Finger Joint Fu-King Furnimate Machine in Wood Manufacturing Industry Tegar Tri Nugraha; Fransiskus Tatas Dwi Atmaji; Sheila Amalia Salma
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15591

Abstract

The objective of this research was to investigate the performance of the Finger Joint Fu-King Furnimate machine, especially for the most critical component of this machine. Based on historical data of machine damage, the Finger Joint Fu-King Furnimate is the machine that has the highest-level frequency of damage. Reliability, Availability, Maintainability, and Safety (RAMS) methods are proposed to analyze the machine's historical data. The result shows that the reliability of machine performance at t = 160 hours is only 27.42%, but the availability of machines is quite high, which passed the standard of 95%. Meanwhile, the maintainability of the machine is relatively fast, which the repair time of its critical component is 8 hours. The low-reliability critical machine spare part affected the safety of the spare part which the Safety Integrity Level (SIL) in the lowest standard (level 1). In general, the novelty of this research is to combine the application of the RAM method as the basis for analyzing machine performance with a safety analysis of the selected critical machine subsystems.
Product Design of Trolley Wheelchair for Disabled People Using Ergonomic Function Deployment Method N. Nurfajriah; Mohammad Rachman Waluyo; Halim Mahfud; Fajar Rahayu Ikhwannul Mariati; Dwie Achmad Basyar; Renesha Fitri Asila; Dinda Meimana
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15601

Abstract

Disability is a problem with the body-function or body-structure, activity limitations, such as individual's difficulty in carrying out actions in life situations. One example of physical disability is a foot disability or an injury on foot that prevents people’s ability in doing activities, where disabled people will find it hard to move from one place to another. Not only needing assistive devices, disabled people who use wheelchairs also need special facilities to do their activities. One of the activities is to shop. In Indonesia there are still no facilities that make disabled people with wheelchairs to shop at supermarkets in ease. Therefore, an innovation is indeed needed to make an integrated, automated, and special trolleys so it can facilitate and increase awareness of the importance of special facilities for disabled people in Indonesia. The EFD (Ergonomic Function Deployment) method is used to design the trolley according to the respondent's wishes. EFD is a development of QFD by adding a new relationship between consumer needs and the ergonomic aspects of the product. The product attributes that is used are derived from the ergonomics aspect which is known as ENASE (Effective, Comfortable, Safe, Healthy and Efficient). The prioritized variables of product design are trolleys for disabled people that run automatically, have an additional trolley basket (opening an additional trolley), have a soft back and seat, and have a strong locking system so that it makes it easier for users with a weight of 0.06048. The priority of consumer needs (Customer Needs) from the results of the HOE design are 3,4,7,8,9.10,11,14,5,6,12,13,16,18,19,1,15,2, and 17 and the Priority of Technical Requirements from the results of the HOE design are C, A, B, E and D
Student’s Preferences in the Selection of Online Shopping Goods Delivery Services Munajat Tri Nugroho; Purwo Setiawan; Octalia Rahmasari
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.14728

Abstract

(The rise of e-commerce or online shops has made the number of shipping service companies increase. Delivery service companies need to analyze consumer preferences in selecting delivery services when shopping online so that they can continue to compete. This study aims to analyze the attributes or important factors that influence consumers and how much influence these factors have on consumer preferences. The AHP (Analytical Hierarchy Process) method is used to obtain the important factors and the discrete choice method with the multinomial logit model to analyze the influence of factors on consumer preferences. With the AHP method, three important attributes are obtained including cost with a value of 4.248, insurance with a value of 1.729, and delivery time with a value of 1.471. Judging from the influence on preferences, the cost factor and delivery time have a negative effect, which means that the lower the rate and the faster the time will increase customer satisfaction. While the insurance factor has a positive effect, which means that consumers prefer insurance. The most influential factor is cost with a parameter value of -1.97, then insurance with a parameter value of 1.66, and finally delivery time with a parameter value of -0.564. Based on gender, the results show that women's considerations of the cost attribute are higher than men's considerations. Meanwhile, based on allowance, the higher the allowance, the more important insurance and delivery time are considered.
Factors Affecting Customer Satisfaction In E-Commerce Dina Rahmayanti; Eri Wirdianto; Ikhwan Arief; Arri Fatimah Zahra; Hafizh Ahmad
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15635

Abstract

This research aims to identify the influence of website quality, product quality, product price, and safety shopping on e-commerce customer satisfaction and determine the significant factor influencing e-commerce customer satisfaction. The method used in this research is multiple linear regression analysis to identify the relationship between independent variables and dependent variables. This research uses the purposive sampling technique to determine the sample size through an online questionnaire to obtain the primary data. The 184 respondents respond to the online questionnaire through social media. This research shows that website quality, product quality, product price, and safety shopping simultaneously influence customer satisfaction. Furthermore, the most significant factor affecting customer satisfaction is product quality; this factor contributes as much as 38% among the other three independent variables in this research.
Developing Bus Rapid Transit’s Schedule using Max Load Method (Trans Metro Bandung Corridor 2 Case Study) Dionisius Aldwin; Fran Setiawan; Loren Pratiwi
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15639

Abstract

Congestion is one of problems that must be solved by the Government of Bandung City. One of the projects are improving the public transport sector. Trans Metro Bandung (TMB) is one of public transport at Bandung. People’s interest to use TMB is very low. This happens because TMB does not have a reliable bus schedule. The focus of this study is to build a TMB’s corridor 2 schedule with headway based on the current passenger condition. The headway is determined using the max load method. This study will compare the current headway target set by TMB with the headway based on the passenger arriving pattern. After that, the schedule which is made from the choosen headway will be simulated. This study shows that the current headway set by Trans Metro Bandung management is better. Simulation shows that schedule can reduce passenger average waiting time quite significant.
An Autonomous Maintenance Design Based on Overall Resource Effectiveness (ORE) Analysis: A Case Study of Paving Molding Machine Indira Kusuma Wardani; Fransiskus Tatas Dwi Atmaji; Judi Alhilman
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15627

Abstract

The paving molding machine is one of the machines used to produce black paving at PT XYZ. Based on the historical data from the engineering maintenance department, this machine has the highest breakdown frequency which affected the low performance and productivity of the machine. To solve this problem, the effectiveness of the paving molding machine was analyzed using overall resource effectiveness (ORE) methods. ORE aims to analyze machine indicators, consisting of readiness, availability of the facility, changeover efficiency, availability of material, availability of manpower, performance efficiency, and quality rate. The ORE analyzed result shows that values of performance efficiency of paving molding machine were 64.54% and still below the standards of the ORE. To increase the ORE, a design of autonomous maintenance (AM) was proposed. The proposed design means the operator is given the responsibility to maintain the basic condition of the machine to minimize the damage of the paving molding machine at PT XYZ. The result of ORE analysis, especially in the performance efficiency, will be an input for the engineering maintenance department to make an AM basic design that can be executed by each of the machine's operators. In general, this research’s novelty is to combine the application of the ORE method with the AM basic design, whereas the AM is one of the pillars of total productive maintenance (TPM).
Classification of Small and Medium Industry (SMI) in Malang Regency Using K-Means based Clustering Method Sunday Noya; Novenda Kartika Putrianto; Weshley Valentino Salendu
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15374

Abstract

Information in the form of a structured database becomes an inevitable requirement in the management and development of an organization. In Malang Regency, there are thousands of Small and Medium Industries (SMIs) that have not been completely recorded. This makes it difficult for stakeholders to find out the profile and potential of SMIs, especially SMIs that require special attention. This study aims to classify SMIs in Malang Regency by utilizing the K-means clustering method, using 5 clustering variables: the type of business, investment value, business age, product variations, and average monthly income. The data used in this study is primary data which consist of the five variables of the 183 SMIs sample located in Malang Regency. The result is that the SMIs are classified into 3 clusters, and patterned based on investment value, business age, and average monthly income. Nearly 90% of SMIs are grouped into clusters with the lowest specifications which provide an overview of the current condition of SMIs in Malang Regency.
Implementation of Importance-Performance Analysis on Integrated Information System Institut Teknologi Telkom Purwokerto Dina Rachmawaty; Achmad Zaki Yamani; Famila Dwi Winati; Hawwin Mardhiana
Jurnal Ilmiah Teknik Industri Vol. 20, No. 2, December 2021
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v20i2.15600

Abstract

Improving information systems is essential to increase user satisfaction which then has a positive impact on the institution. This study aims to measure the importance and performance of website service quality attributes on the i-Gracias ITTP using Importance Performance Analysis. This study integrate e-ServQual and WebQual to measure the level of student satisfaction with i-Gracias as a web-based information system service comprehensively. Generally, the satisfaction score shows that the performance of quality attributes does not meet the expectations of students as users. Of the 30 quality attributes measured, there is one attribute in quadrant I, 12 in quadrant II, 13 in quadrant III, and 3 in quadrant IV. The attributes that describe the fundamental functions of i-Gracias as an online service system are efficiency, security, fulfillment, information quality, and accessibility. The next priority for improvement for i-Gracias is efficiency improvement and process simplification.

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