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All Journal Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) OPSI JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri SAINTEK: Jurnal ilmiah Sains dan Teknologi Industri Abdimasku : Jurnal Pengabdian Masyarakat JENIUS: Jurnal Terapan Teknik Industri Journal of Industial Engineering and Technology Jurnal Teknologi dan Manajemen Industri Terapan JURNAL TEKNIK INDUSTRI Journal Serambi Engineering (JSE) Jurnal Ilmiah Dinamika Rekayasa
Dewa Kusuma Wijaya
(Sinta ID: 6663274) Universitas Dian Nuswantoro
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences Transportation

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Optimasi Proses Engraving Kayu Mahoni dengan Mata Pahat Conical 3 mm pada Mesin CNC Router G-Weike WK1212 Menggunakan Metode Full Factorial Design dan Optimasi Plot Multi Respon Dewa Kusuma Wijaya; Tita Talitha; Nur Alfathan Banoel
SAINTEK : Jurnal Ilmiah Sains dan Teknologi Industri Vol. 6 No. 1 (2022): JISTIN Vol 6 No. 1
Publisher : Universitas Katolik Musi Charitas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32524/saintek.v6i1.522

Abstract

Penelitian ini merupakan penelitian lanjutan dari penelitian sebelumnya terkait optimasi proses ukir (engraving) dengan objek yang sama yaitu material kayu mahoni yang diproses dengan mesin CNC Router G-Weike WK1212 dan mata pahat jenis Conical ukuran 3 mm menggunakan metode Taguchi. Pada penelitian ini metode optimasi yang digunakan adalah Full Factorial Design dengan optimasi plot multirespon, dimana penggunaan metode tersebut juga mengacu pada hasil penelitian sebelumnya namun implementasinya diterapkan pada proses potong (cutting) dengan mata pahat jenis End Mill 3 mm menggunakan mesin CNC Router dan material kayu yang sama. Tujuan dari penelitian ini ada 2, pertama adalah membandingkan nilai optimalitas dari implementasi metode Full Factorial Design - optimasi plot multirespon dengan hasil implementasi metode Taguchi sebelumnya. Kedua, mengetahui apakah hasil optimal dari implementasi metode Full Factorial Design dengan optimasi plot multirespon untuk proses engraving menggunakan mata pahat Conical 3 mm dapat sama dengan pada proses cutting menggunakan mata pahat End Mill 3mm. Hasil dari penelitian ini diketahui bahwa level seting optimal dari hasil metode Full Factorial Design dengan optimasi plot multi respon adalah kecepatan spindle 7 step, kecepatan motion 5 step dan depth per cut 0.5 mm.
Design and manufacturing optimization of herbal drink crystallization machine using reverse engineering method Santoso, Heru Agus; Islahudin, Nur; Wijaya, Dewa Kusuma
OPSI Vol 16, No 2 (2023): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v16i2.11335

Abstract

This article explains the design and manufacture of a herbal drink powder crystallization machine at Menik Jaya MSMEs. The problem with this research stems from the large number of defective products produced in the form of herbal powder that is burnt and lumpy. This is because production staff still manually stir the process continuously without stopping, causing fatigue due to work and impacting the quality of the process. So that the optimal design and manufacture of the crystallization machine is obtained where the dimensions of the machine are 130 cm high, 100 cm long and wide, machine legs height is 62 cm, stove height is 87 cm from the base and the stove pan handle width is 12 cm. Regarding engine performance, the ideal electric capacity of the motor is 60 watts with a stirrer and pan made from a combination of wood and AISI 3195 stainless steel. The pully uses 2 types of sizes, if the volume of raw material is small then a 4 cm pully is used with 10 Rpm rotation speed and 0,052 Nm torque value, while for large volumes a 6 cm pully is used with 15 Rpm rotation speed and 0,038 Nm torque value.
Optimizing product design and development of engine carbon cleaning maintenance tools using reverse engineering and VDI 2222 methods Wijaya, Dewa Kusuma; Hartono, B.J Ridwan; Jazuli, Jazuli; Izzhati, Dwi Nurul
OPSI Vol 17, No 1 (2024): ISSN 1693-2102
Publisher : Jurusan Teknik Industri Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v17i1.12032

Abstract

This research article explains the product design and development optimization of multi feature engine carbon cleaning maintenance tools. The implementation of the Reverse Engineering method was integrated with VDI 2222 in the research process. The results of the optimal design and development of this tool obtained a component structure that was able to meet 14 types of consumer needs with a total tool cost of IDR 1.137.900 with a total tool weight of 6.9 kg. The results of the load test simulation concluded that the housing case was able to withstand the overall weight of the components that make up the tool. Depending on the liquid chemical used, the results of tool tests on a limited scale have proven to be able in save fuel consumption by ±12.5% per hour with engine workload which can also be reduced by 3,14%.
Perbaikan proses printing menggunakan metode DMAIC dan 5S untuk mengurangi waste proses di UKM limit screen printing Semarang Samsudin, Ananda Eka Putra; Dewa Kusuma Wijaya; Nur Islahudin
JENIUS : Jurnal Terapan Teknik Industri Vol 4 No 1 (2023): JENIUS: Jurnal Terapan Teknik Industri
Publisher : LPPMPK - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jenius.v4i1.468

Abstract

UKM Limit Screen Printing Semarang bergerak pada bidang bisnis sablon pakaian. Terkait faktor penyebab produk cacat hasil sablon, penelitian yang dilakukan pada UKM tersebut bertujuan untuk menentukan strategi perbaikan yang tepat untuk dapat mengurangi jumlah produk cacat hasil sablon menggunakan metode 5S. Metode 5S dapat mengidentifikasi permasalahan dengan penerapan konsep Seiri, Seiton, Seiso, Seiketsu dan Shitsuke atau dikenal juga dengan istilah 5R. Hasil penelitian yang telah dilakukan dengan penerapan menggunakan metode 5S tersebut didapatkan perubahan yang diukur dalam indikator nilai DPMO (Defect Per Million Opportunities) dan nilai sigma. Dimana peningkatan nilai DPMO dan nilai sigma pada proses produksi sablon yaitu semula bernilai 42028,86 dengan nilai sigma 3,23 menjadi nilai DPMO 18072,289 dengan nilai sigma 3,60. Sehingga dapat disimpulkan bahwa dengan adanya penurunan jumlah produk cacat hasil sablon yang dihasilkan maka dapat mempengaruhi perubahan peningkatan nilai DPMO dan nilai sigma pada UKM tersebut atau dalam hal ini dapat dikatan menjadi lebih baik. Melalui hasil penelitian diketahui pula faktor penyebab terjadinya kecacatan produk hasil sablon yaitu faktor bahan baku, alat dan proses cetakan. Usulan perbaikan yaitu pada area kerja produksi dimana mengacu pada metode 5S seperti menyediakan tempat penyimpanan alat, menyimpan kembali alat yang telah digunakan dan membuang bahan yang tidak diperlukan
Ergonomic Assessment of Manual Material Handling Workers In The Semarang Tofu Industry Utilizing SNI 9011:2021 -, Amalia; Kurniatie, Menik Dwi; Nugroho, Doni Satriyo; Wijaya, Dewa Kusuma
Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) Vol 10 No 01 (2024): Volume 10 No 01 Tahun 2024
Publisher : Program Studi Magister Ergonomi Fisiologi Kerja Pascasarjana Universitas Udayana Denpasar Bekerjasama dengan Perhimpunan Ergonomi Indonesia (PEI)

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Abstract

In order to produce delectable, nutritious and affordable pricing, tofu products go through a labor-intensive manufacturing process that demands physical exertion and muscular vigor. In Indonesia, particularly in Semarang, Central Java, the tofu manufacturing process is still carried out manually, including the handling of raw soybeans and finished tofu, generally called Manual Material Handling (MMH). Among the tasks performed by MMH workers include lifting soybean, holding soybean extraction, lifting and carrying tofu barrels. Lifting loads range from 10 to 70 kg. The objective of this paper is to assess the degree of ergonomic risks and complains among MMH workers. The method used is quantitative analysis with a cross-sectional research design that refers to SNI 9011: 2021. Research methods to collect data include observations, interviews, and surveys. 80% of respondents complained of experiencing pain. Painful body parts with a high level of frequency and severity are located in the neck, right shoulder, upper back, lower back, arm, and right hand. A score of 9 indicates a high-risk level for MSD concerns. The total score of potential ergonomic risks is in the range of 11–19, with body scores vary from 2 and 8, material handling scores is 8. In order to reduce the risk of ergonomic hazards in MMH activities, risk control efforts are carried out by dividing the load into acceptable limits, lifting loads balance on both sides of the body. Providing assisting devices, such as ergonomic hand trolleys, can handle huge amounts with fewer frequent material handlings. Counseling is carried out for workers to help them because more aware and knowledgeable about how to conduct MMH activities safely.
PERANCANGAN MEJA SLIDER PALET PAVING BLOK MENGGUNAKAN METODE ERGONOMIC FUNCTION DEPLOYMENT (EFD) DI PT. DIAN NUSWANTORO REKAYASA TEKNOLOGI Aji, Chandra Wahyu; Wijaya, Dewa Kusuma
Journal of Industrial Engineering and Technology Vol 4, No 1 (2023): Desember 2023
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/jointech.v4i1.10593

Abstract

Dikarenakan banyaknya minat pengguna dalam penggunaan paving membuat produksi paving membludak dan banyak pesanan menyebabkan produsen atau karyawan pembuat paving menjadi kwalahan dikarenakan masih manualnya pengangkut paving yang keluar dari mesin produksi ke tempat penjemuran paving, dengan kira kira sekali produksi ± 100kg/pallet dan sehari bisa menghasilkan 20-25 pallet secara terus menerus dengan diangkat menggunakan tangan oleh 2-3 orang penggangkat. Hal ini sangat berbahaya dan dapat menyebabkan cidera jika terus – menerus dilakukan dan proses produksi juga akan menjadi lebih lama.Pada permasalahan tersebut dibutuhkan meja Slide yang dapat digunakan untuk mempermudah pekerja pembuat paving untuk menggangkat pallet. Analisa indeks postur tubuh pekerja di PT Direct menggunakan Loading on the Upper Body Assessment (LUBA). Kemudian dilakukan perancangan alat bantu kerja meja menggunakan metode Ergonomic Function Deployment (EFD). Alat Bantu Kerja Meja Slider yang dirancang sangat efisien, karena proses penjemuran menjadi lebih cepat dengan perbandingan waktu penjemuran 1 jam mendapatkan selisih dari yang sebelum menggunakan alat 24 pallet dan setelah menggunakan jadi 60 pallet selama 1 jam jadi efisiensi sebesar 60%.
Design Optimization of CNC Router 2413 for the Interior Design Industry Using Reverse Engineering and DFMA Chandra Ramadhan; Dewa Kusuma Wijaya; Rudi Tjahyono
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 4 No. 3 (2025): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v4i3.1148

Abstract

The wood industry faces prolonged production times due to the use of conventional tools and the declining number of artisans. This study aims to design the CNC 2413 machine to meet the production needs of the interior design industry by improving efficiency, precision, and adaptability. The design process applies the Reverse Engineering approach combined with Design for Manufacturing and Assembly (DFMA). The key technical aspects include torque calculation, Center of Gravity (CoG) analysis, and assembly mapping. The results indicate that a 3-axis CNC router is sufficient for cutting and engraving tasks, requiring a minimum torque of 0.4116 N·m (Y-axis), 0.3528 N·m (X-axis), and 0.0156 N·m (Z-axis), with a spindle torque of 0.159 N·m. The Nema 24 stepper motor and Bosch GKF router were selected as they meet the specified requirements. The CoG analysis produced X = 56.9–63.0 cm, Y = 100.9–127.3 cm, and Z = 3.884 cm, demonstrating structural stability and resistance to vibration. This design is considered feasible and reliable for long-term use. In addition, the study offers practical significance in terms of potential production cost savings through lower power consumption compared to conventional machines and the opportunity to enhance the production capacity of small and medium enterprises (SMEs) in the interior design sector. This research provides a practical reference for developing CNC routers using locally sourced components, aligned with the technical and economic needs of the interior design industry.
Analisis Pengaruh Sistem Penilaian Kinerja Terhadap Peningkatan Produktivitas Pegawai di PPSDM Migas Elsa Diah Saputri; Rudi Tjahyono; Dewa Kusuma Wijaya
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sumber daya manusia merupakan faktor kunci dalam keberhasilan organisasi, namun praktik penilaian kinerja di sektor publik sering belum optimal dan menimbulkan perbedaan persepsi terkait keadilan serta transparansi. Kondisi ini berpotensi memengaruhi motivasi dan produktivitas pegawai. Penelitian ini bertujuan menganalisis pengaruh sistem penilaian kinerja terhadap produktivitas pegawai di PPSDM Migas Cepu. Penelitian menggunakan pendekatan kuantitatif dengan desain kausal, terhadap pegawai tetap Unit Kepegawaian PPSDM Migas Cepu yang dipilih menggunakan teknik sampling jenuh. Instrumen penelitian berupa kuesioner yang telah diuji validitas dan reliabilitasnya. Data dianalisis menggunakan uji normalitas, korelasi Pearson, dan regresi linear sederhana. Hasil menunjukkan hubungan yang kuat antara penilaian kinerja dan produktivitas (r = 0,672) dengan kontribusi sebesar 45,2% (R² = 0,452) dan nilai signifikansi 0,002 (< 0,05). Persamaan regresi (Y = 10,256 + 0,158X) menunjukkan bahwa peningkatan kualitas penilaian kinerja berdampak positif terhadap produktivitas. Hasil penelitian menunjukkan bahwa sistem penilaian kinerja yang baik dapat mendukung peningkatan produktivitas pegawai serta menjadi masukan dalam pengembangan sistem evaluasi kinerja.
Optimization of The Production Process of Lightweight Expanded Clay Aggregate (LECA) Composite Kasgot Using The Taguchi Method to Promote Agroindustrial Technology Revalino Ghani; Dewa Kusuma Wijaya; Dwi Nurul Izzhati
Jurnal Ilmiah Dinamika Rekayasa Vol. 22 No. 1 (2026): Jurnal Ilmiah Dinamika Rekayasa - Januari
Publisher : Engineering Faculty, UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jidr.2026.22.1.76

Abstract

This research focuses on optimizing the manufacturing process of Lightweight Expanded Clay Aggregate (LECA) made from a mixture of kasgot composites by integrating the Taguchi method, regression analysis, and Anova. The main problem of this research is the uncertainty of the quality of LECA made from kasgot composites due to less than ideal production process parameters. In addition, the increase in kasgot waste also encourages the need for more valuable utilization so that the LECA production process must be efficient to be optimal, consistent, and environmentally friendly. The Taguchi method is used to determine the most effective combination of production parameters, including firing temperature, firing duration, and LECA grain diameter using the L9 experimental design. The results of the analysis show that firing temperature is the most dominant factor, especially on production costs and surface roughness values. The findings of the Anova analysis confirm that temperature has a significant effect on most responses, while diameter has a strong effect on the LECA mass parameter. A regression model is then built to predict the behavior of each response based on process factors. Based on the research of these two methods, the most optimal is the Anova method with a firing temperature of 200°C, a firing time of 2 hours, and a diameter of 2 cm. The standard error obtained for cost is 0, for roughness is 0.178, for mass is 53.7, for permeability is 0.235 with a composite desirability value of 0.607448.
Co-Authors Aji, Chandra Wahyu Amalia Amalia Chandra Ramadhan Dedi Nurcipto, Dedi Dian Retno Sawitri Dwi Nurul Izzhati Dwi Nurul Izzhati Elsa Diah Saputri Hartono, B.J Ridwan Heru Agus Santoso Herwin Suprijono Jazuli, Jazuli Kurniatie, Menik Dwi Kusmiyati Kusmiyati Nugroho, Doni Satriyo Nugroho, Dony Satriyo Nur Alfathan Banoel Nur Islahudin Prajanto Wahyu Adi Pramudi Arsiwi Revalino Ghani Samsudin, Ananda Eka Putra Tita Talitha Tjahyono, Rudi