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All Journal Jurnal Ilmiah Dinamika Teknik Jurnal technoscientia OPSI SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Tekinfo | Scientific Journal of Industrial and Information Engineering Conference SENATIK STT Adisutjipto Yogyakarta DINTEK Dharma Bakti RANDANG TANA - Jurnal Pengabdian Masyarakat Jurnal Engine: Energi, Manufaktur, dan Material jurnal Teknik Industri - Unisi JURNAL TEKNOLOGI TECHNOSCIENTIA IEJST (Industrial Engineering Journal of the University of Sarjanawiyata Tamansiswa) Journal of Industial Engineering and Technology SENAPAS Scientica: Jurnal Ilmiah Sains dan Teknologi
Elly Wuryaningtyas Yunitasari
Program Studi Teknik Industri, Universitas Sarjanawiyata Tamansiswa
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Pengendalian Kualitas Produk Menggunakan Lean Six Sigma dan Fuzzy FMEA Dalam Upaya Menekan Kecacatan Produk Muvidah, Nada Iman; Yunitasari, Elly Wuryaningtyas; Kusmendar, Kusmendar
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 7 No. 2 (2023)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v7i2.1617

Abstract

Quality control is a process used to ensure the level of quality in a product or service so as to lead to customer satisfaction. UMKM Eko bubut is a UMKM that produces wooden handicrafts with product marketing that reaches the international market. In the problem of product quality control at UMKM Eko Bubut, it was found that there were five types of defects, namely wavy, rough, perforated, cracked, and broken defects. In addition, it was found that there was wastage that occurred which had an effect on disability. Solving quality control problems at UMKM Eko Bubut is by using lean six sigma to identify the sigma level and fuzzy FMEA is used to determine the main priority for repairs to the causes of production defects that occur. The results of the calculation of the defect level of bowl products, it was found that the types of defects were wavy (55.06%), rough (28.29%), perforated (7.82%), cracked (7.22%) and broken (1.61%). The identification results of the waste that occurs are waste defects (28.1%), waste overproduction (17.7%), waste waiting (16.2%), waste motion (16.0%), waste inventory (10.75%), waste transportation (6.55%), and over-processing (4.9%). The results of calculating the DPMO value obtained an average sigma of 3.27 with a DPMO value of 38890.41. This shows that for every 1,000,000 production, there is a possibility that there will be product defects in as many as 38,890 products. Factors that affect product defects are humans, raw materials, methods, machines, and the environment.
Desain Kualitas Produk Gelas Kayu Dengan Metode Taguchi Multi Respon Pada CV Tunas Karya Kabupaten Gunung Kidul Kilkoda, Rahmiyanti; Yunitasari , Elly Wuryaningtyas; Rezalti , Dian Tiara
Scientica: Jurnal Ilmiah Sains dan Teknologi Vol. 2 No. 9 (2024): Scientica: Jurnal Ilmiah Sains dan Teknologi
Publisher : Komunitas Menulis dan Meneliti (Kolibi)

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Abstract

Penelitian ini bertujuan untuk mengoptimalkan kualitas produk gelas kayu CV Tunas Karya di Kecamatan Patuk Kabupaten Gunung Kidul, Daerah Istimewa Yogyakarta menggunakan metode Taguchi multi respon. Variabel respon yang dipertimbangkan adalah keteguhan lengkung, ketebalan, dan dimensi produk gelas kayu. Hasil penelitian menunjukkan bahwa kombinasi parameter proses yang optimal untuk menghasilkan gelas kayu dengan kualitas terbaik adalah: ukuran kayu 3 cm x 3 cm, suhu pengeringan 80°C, dan kecepatan potong 15 m/menit. Pengaturan level optimal tersebut mampu meningkatkan keteguhan lengkung sebesar 15,8%, mengurangi variasi ketebalan sebesar 12,6%, dan memperkecil deviasi dimensi produk sebesar 9,2% dibandingkan dengan kondisi awal produksi. Analisis varians menunjukkan bahwa faktor ukuran kayu memberikan kontribusi terbesar terhadap variabilitas respon, diikuti oleh suhu pengeringan dan kecepatan potong. Optimasi multi respon dengan pendekatan grey relational analysis menghasilkan kombinasi parameter proses yang dapat meminimalkan variabilitas dan menghasilkan gelas kayu dengan kualitas optimal. Metode Taguchi multi respon terbukti efektif dalam mengoptimalkan kualitas produk gelas kayu CV Tunas Karya. Hasil penelitian ini dapat diterapkan oleh industri serupa untuk meningkatkan kualitas produk dengan biaya yang efisien.
Pengendalian Kualitas Terhadap Aksesoris Kulit Menggunakan Pendekatan Statistical Quality Control (SQC) Dan Fuzzy Analytical Hierarchy Process (F-AHP) Ricky Novan Pradhana; Elly Wuryaningtyas Yunitasari; Syamsul Ma’arif
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 11 No 2 (2023)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v11i2.1722

Abstract

Abekani Leather is a company engaged in the manufacture of leather accessories made from cowhide. In running its business, abekani leather uses the Make To Stock (MTS) and Make To Order (MTO) systems to meet market needs. In running its business, Abekani Leather is constrained by the number of defective products reaching an average of 5% for the period June-December 2021. The purpose of this study is to find out whether the product defect is still within the limits of the control, the factors that can affect, and suggestions for major improvements..This study uses the Statistical Quality Control (SQC) method which aims to statistically control the quality, and the Fuzzy Analytical Hierarchy Process (F-AHP) to determine the main improvement suggestions. After doing the research, the results obtained are, abekani leather accessories products are still under statistical control, which is indicated by the absence of out of control data on the U map with center line 0.0543. The cause of product defects is influenced by several factors, including Human Factors, Machine Factors, Method Factors and Material Factor. The main improvement suggestion is to hold regular meetings every month to discuss improving the quality of leather accessories products with a score of 0.7459.
Pengendalian Kualitas dengan Menggunakan Metode Six Sigma dan Multivariate Exponentially Weighted Moving Average (MEWMA) pada Produk EQ Spacing di PT Sinar Semesta Alvito Shultan Alfiansyah; Elly Wuryaningtyas Yunitasari; Kusmendar Kusmendar
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 12 No 2 (2024)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v12i2.2300

Abstract

In the production process of EQ Spacing products at PT Sinar Semesta, it was discovered that there were eight types of defects which resulted in product defects exceeding company standards. The aim of this research is to carry out a series of analyzes and actions focused on controlling product quality and identifying various aspects that require improvement during the production process. The types of defects with the highest percentage include uneven surfaces at 35.3%, porous at 24.9%, and chipped at 19.3%. Using the Multivariate Exponentially Weighted Moving Average (MEWMA) approach with a weight of 4.05, shifts were found in periods 6, 10, 11, 12, 13, 14, and 15 of the MEWMA graph, with a DPMO value of 24268 and a sigma of 3.5. This analysis demonstrates that in order to prevent excessive defects, production process performance must be improved. PT Sinar Semesta must suggest modifications based on the 5W+1H approach in order to lower the quantity of flaws in bag products. The goal of this quality improvement is to get closer to zero defects and a very low failure rate. It is intended that by doing this, the final product will be superior and satisfy the company's quality requirements.
The Pemilihan Rute Distribusi Customer PT Java Agro Sari Berdasarkan Metode Algoritma Djikstra dan Saving Matrix Yusuf Khoirul Huda; Elly Wuryaningtyas Yunitasari; Kusmendar Kusmendar
Tekinfo: Jurnal Ilmiah Teknik Industri dan Informasi Vol 13 No 1 (2024)
Publisher : Program Studi Teknik Industri Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/tekinfo.v13i1.2466

Abstract

In customer distribution at PT Java Agro Sari, there are delays in delivery to customers. It even exceeds the accepted allowance time of 15 to 20 minutes. The purpose of this study is to determine the shortest distribution route so as to reduce delivery delays. In the delivery of PT Java Agro Sari's distribution to 13 customers A-B-C-D-E-F-G-H-I-J-K-L-M is divided into 2 routes, namely route 1 with customer A-B-C-D-E-F while route 2 with customer G-H-I-J-K-L-M which will determine the shortest distribution route. In determining the shortest distribution route using the Djikstra Algorithm and Saving Matrix methods, route 1 of the closest method of Djikstra Algorithm and Nearest Neighbor is obtained with the route sequence PT-A-C-E-F-D-B-PT with a total distance of 25.8 km. For route 2, the closest method is Algortima Djikstra with the route sequence PT-G-I-J-K-L-M-H-PT with a total distance of 46.1 km. From the research results, the methods that are more dominant in determining the shortest route are Djikstra Algorithm and Nearest Neighbor, PT Java Agro Sari should suggest modifications based on these methods to obtain the shortest distribution route so that it will save transportation costs which will affect profits for the company and make the price of its products more affordable because of the lower transportation costs.
Pengendalian Kualitas Produk Menggunakan Cumulative Sum Control (cusum) dan Fuzzy Decision Making pada Proses Produksi Buku Tahunan di CV Renjana Offset Elly Wuryaningtyas Yunitasari; Esti Dwi Pujaningsih; Emmy Nurhayati
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 1 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i1.2145

Abstract

CV Renjana Offset is a printing company that produces yearbooks for export. In the production process, various types of rejects were found in the pack products, such as scratches, glue, tears, and problematic pop-ups, as well as in book products, such as reversed arrangement, broken threads, and shadows. This study uses the Cumulative Sum Control (CUSUM) method to analyze product quality and the Fuzzy Analytic Hierarchy Process (FAHP) to determine improvement priorities. The results showed an average reject of 3.96% with a total of 35.66% from November 2023 to July 2024, although there was an increase to 4.74% in July 2024. The cumulative CUSUM of 0.143 units with a monthly average of 0.016 units indicates consistent quality, but improvements are needed in operators and materials. The proposed improvements aim to reduce rejects and improve quality through structured and sustainable improvement actions.
A CASE STUDY ON NEW VEHICLE INVESTMENT FOR THE TOURIST TRANSPORTATION RENTAL BASED ON BWM AND SAW SAPUTRA, BAGAS AJI; Kurniawan, V. Reza Bayu; Yunitasari, Elly Wuryaningtyas
Journal of Industrial Engineering and Technology Vol 5, No 2 (2025): Juni 2025
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jointech.v5i2.13315

Abstract

Article history : The rapid growth of the tourism industry, especially in Indonesia, has positively impacted various other sectors. This growth has indirectly spurred the development of supporting businesses, predominantly small and medium-sized enterprises (SMEs), such as tourist transportation rentals. Rising tourist demands for transportation necessitate that entrepreneurs in this industry adapt quickly, including investing in the latest vehicle units. However, investing in new vehicles is challenging, especially for small-scale rental owners. They must carefully calculate their investment, considering various potential risks. Therefore, this study recommends alternatives for new vehicle investments in tourist transportation rentals based on BWM and SAW. A case study on small-scale rental businesses in Yogyakarta has been selected. The results indicate that five criteria must be considered for new vehicle investments in tourist rentals: vehicle type (C1), fuel consumption (C2), engine specifications (C3), rental price (C4), product lifetime (C5), and price (C6). The optimal weights of these criteria are determined using BWM to rank five investment alternatives: KIZ, HIC, AVZ, BRI, and SGR. The findings suggest KIZ as the potential top investment priority, followed by AVZ, BRI, SGR, and HIC.
Co-Authors Alvito Shultan Alfiansyah Alvito Shultan Alfiansyah Dian Tiara Rezalti Emmy Nurhayati Esti Dwi Pujaningsih Fikri Singgih Wijya Kilkoda, Rahmiyanti Kusmendar, Kusmendar Muvidah, Nada Iman Nikma Wahyu Nurdaningsih Nina Putri Wardana Patrisius Edi Prasetyo Paulina Retno Anjani Sugito Renno Angga Mardian Ricky Novan Pradhana Royanto, Puji Saputra, Bagas Aji Shanta Rezkita Shintya Kurniawan Syamsul Ma’arif Syamsul Ma’arif V. Reza Bayu Kurniawan Wakhid Nur Hidayat Wardana, Nina Wijaya, Fikri Singgih Yulianti, Trisna Yusuf Khoirul Huda