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All Journal Tibuana : Journal of Applied Industrial Engineering EQIEN - JURNAL EKONOMI DAN BISNIS Jurnal Teknik Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Idaarah: Jurnal Manajemen Pendidikan INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi INAQUE: Journal of Industrial & Quality Engineering Journal of Research in Business, Economics, and Education Jurnal Optimasi Teknik Industri (JOTI) Jurnal Penelitian Inovatif
Hermita Dyah Puspita
Teknik Industri, Fakultas Teknologi Manufaktur, Universitas Jenderal Achmad Yani, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mechanical Engineering Public Health Social Sciences Other

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PENENTUAN JUMLAH SERVER PADA BAGIAN PENCUCIAN KENDARAAN SETELAH SERVIS UNTUK MENGURANGI WAKTU MENUNGGU DI PT. XYZ BANDUNG Ragil Pardiyono; Gianti Puspawardhani; Hermita Dyah Puspita; Oviyan Patra; Jahny Sastradiharja
INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Vol. 24 No. 2 (2022): Volume 24 No. 2 Desember 2022
Publisher : Fakultas Teknik, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/infomatek.v24i2.5739

Abstract

Penelitian ini dilakukan di PT. XYZ yang merupakan perusahaan yang bergerak dibidang penjualan kendaraan, spare part dan servis kendaraan roda empat resmi merk Toyota. Berdasarkan hasil follow up customer satisfaction level melalui telepon yang bersifat acak kepada pelanggan setelah servis diperoleh hasil jumlah ketidakpuasan pelanggan sebesar 3,6%. Sedangkan target ketidakpuasan yang ditetapkan oleh TAM adalah maksimal 1% pelanggan yang tidak puas. Hal ini tentu menjadi masalah karena adanya gap ketidakpuasan konsumen. Dari hasil identifikasi diperoleh data penyebab dominan ketidakpuasan konsumen karena lamanya waktu menunggu pada bagian pencucian kendaraan setelah servis. Hal itu disebabkan karena PT. XYZ hanya mempunyai 1 stall atau bagian pencucian, sehingga tidak sebandingnya antara jumlah kendaraan yang servis dengan jumlah pelayanan. Maka tujuan penelitian ini adalah menentukan jumlah server optimal pada stall cuci kendaraan setelah servis. Berdasarkan pengolahan data menggunakan model sistem antrian (M/M/C):(GD/∞/∞) diperoleh hasil kondisi yang ada perusahaan menyediakan 1 stall cuci dan tidak mencapai keadaan mapan (steadty state). Maka jumlah server minimum yang di peroleh sebanyak 2 stall cuci dengan ukuran kriteria antrian probabilitas tidak ada kendaraan dalam sistem sebesar 0,317, rata-rata jumlah kendaraan dalam antrian sebanyak 0,064 kendaraan, rata-rata jumlah kendaraan dalam sistem sebanyak 1,102 kendaraan, dan rata-rata waktu menunggu kendaraan di dalam antrian = 0,0149 jam. Hasil ini tidak membahas mengenai biaya yang timbul dari penambahan server, kedepan perlu dilakukan kajian dari aspek biaya agar pembahasannya menjadi lengkap.
ESTIMASI BIAYA GARANSI DENGAN PENDEKATAN SKALA WAKTU TERBAIK PRODUK KENDARAAN TRUK MERK "X" DI PT ABC Puspita, Hermita Dyah; Norina, Rida; Puspawardhani, Gianti
Inaque : Journal of Industrial and Quality Engineering Vol 11 No 2 (2023): Inaque Oktober 2023
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/iqe.v11i2.11257

Abstract

ABSTRACT A warranty is an agreement between a manufacturer and a consumer that guarantees the quality of a product for a certain period or period of use. There is a warranty, products that are defective before the warranty period expires will be replaced or repaired by the manufacturer. From the consumer's perspective, a warranty serves as a guarantee of protection against a product failing or not performing as expected and also as a provider of information about the quality of the product. From the manufacturer's perspective, warranties provide benefits by protecting the manufacturer from excessive consumer complaints. This study aims to determine the estimated warranty costs for “X” brand truck products sold by PT ABC using the best time scale method. The policy implemented by the company is a two-way warranty policy, specifically a warranty policy for automobile products for a period of 3 years or 100,000 km, whichever comes first. The purpose of this study is to perform estimates for branded heavy goods vehicles. The estimated parameters of the truck damage model were obtained using the maximum likelihood method. With the Golden Section algorithm, the resulting parameter is ∈0 = 0.35125 with a minimum variance coefficient obtained of 0.7427391 and a guarantee limit at L= 5.4588. The K distribution of the best fitting time scale is an exponential distribution with parameter λ = 0.964902. The estimated warranty cost for truck brand “X” in company “ABC” using the best time scale method produces a cost of IDR 958,949,134. Keywords: 1 Dimension Guarantee, Best Time Scale, Maksimum Likelihood Estimation.
Study Tentang Konsentrasi Pegawai FTM BerdasarkanSuhu, Body Mass Index, Lama Pemakaian Masker, dan UsiaMenggunakan Fasilitas Ruang Iklim Hermita Dyah Puspita; Norina, Rida; Budi Astuti
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 2 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol23no2.588

Abstract

COVID-19 has spread rapidly in places where people interact socially, with aerosol transmission being a significant concern, especially in enclosed spaces where infected individuals spend extended periods with others in crowded and poorly ventilated conditions. The use of masks is a preventive measure against the spread of the virus that causes COVID-19. Concerns have been raised that carbon dioxide may accumulate in masks over time, potentially leading to respiratory issues and other problems such as impaired concentration at work. This research aims to conduct an experiment to study concentration based on the physical work environment, including factors such as room temperature, Body Mass Index (BMI), duration of mask use, and age. Concentration will be measured through reaction time, which includes visual, auditory, and motor components, using a factorial design method. The results of the study indicate a significant relationship between the concentration, represented by the reaction time of the respondents, and several factors: temperature, BMI, age of the respondents, and type of reaction (visual, auditory, and motor). Based on factorial analysis, it can be concluded that temperature, age, BMI, and type of reaction all influence reaction time at a significance level of 5%.
Integrasi Evaluasi Ergonomi dan Perancangan Teknik dalam Pengendalian Risiko Manual Material Handling: Studi Kasus pada Industri Manufaktur Andri Rachmat Kumalasian Nasution; Ledina Ramadhanti; Anisa Fauziah; Hermita Dyah Puspita
Jurnal Penelitian Inovatif Vol 6 No 1 (2026): JUPIN Februari 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jupin.2269

Abstract

Manual material handling (MMH) merupakan salah satu sumber utama risiko ergonomi dan gangguan muskuloskeletal pada industri manufaktur. Penelitian ini bertujuan untuk mengevaluasi efektivitas pengendalian teknik berupa alat bantu kerja ergonomis dalam menurunkan risiko MMH. Penelitian menggunakan pendekatan terapan dengan desain pre–post intervention melalui integrasi metode Nordic Body Map (NBM), Rapid Entire Body Assessment (REBA), Revised NIOSH Lifting Equation (RNLE), dan Snook Tables. Hasil evaluasi kondisi awal menunjukkan dominasi keluhan pada punggung bawah (77%), skor REBA sebesar 12 (risiko tinggi), lifting index di atas 5, serta rasio beban terhadap maximum acceptable weight (MAW) melebihi 1. Berdasarkan diagnosis tersebut, dirancang alat bantu berbasis pengendalian teknik untuk mengurangi fleksi batang tubuh dan mengeliminasi aktivitas angkat manual selama transportasi. Evaluasi pascaimplementasi menunjukkan penurunan signifikan risiko ergonomi, ditandai dengan skor REBA sebesar 1, nilai lifting index di bawah satu, dan rasio beban terhadap MAW mendekati nol. Temuan ini mengonfirmasi bahwa pengendalian teknik yang dirancang secara ergonomis efektif meningkatkan keselamatan kerja dan dapat menjadi solusi praktis bagi industri manufaktur skala menengah.
Engineering Design and Ergonomic Evaluation of an Assistive Device for Manual Material Handling Nasution, Andri Rachmat Kumalasian; Ramadhanti, Ledina; Fauziah, Anisa; Puspita, Hermita Dyah
Tibuana Vol 9 No 02 (2026): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.9.02.11149

Abstract

Manual material handling (MMH) remains a major contributor to work-related musculoskeletal disorders in manufacturing environments. This study proposes and evaluates an assistive device for box panel handling aimed at reducing ergonomic risk during lifting and transport operations at PT. XYZ. A case-study approach was employed using multiple ergonomic assessment methods, including the Nordic Body Map (NBM), Rapid Entire Body Assessment (REBA), the Revised NIOSH Lifting Equation (RNLE), and the Snook Tables. Baseline results indicated dominant lower-back (77%) and upper-back (71%) complaints, a high-risk REBA score of 12, low recommended weight limits (4.46–4.91 kg), and excessive lifting indices (5.50–6.05) for a maximum load of 37 kg. The Snook analysis yielded a maximum acceptable weight of 13.0 kg with a load-to-MAW ratio of 1.38. A trolley-based assistive device integrating lifting and transfer support was then designed to minimize trunk flexion and eliminate manual carrying during transport. Post-intervention evaluation showed substantial improvements, with the REBA score reduced to 1, lifting indices below unity, and the load-to-MAW ratio approaching zero. These results demonstrate that engineering controls in the form of practical assistive devices can effectively reduce ergonomic risk and improve manual material handling safety in industrial settings.
Co-Authors Adi Ganda Putra Anis Septiani Anisa Fauziah Arini Dwi Sulastri Budi Astuti Fauziah, Anisa Gianti Puspawardhani Gianti Puspawardhani Gianti Puspawardhani Gianti Puspawardhani Ginanjar Abda’u Jahny Sastradiharja Ledina Ramadhanti Nasution, Andri Rachmat Kumalasian Norina, Rida Nurhadi Nurhadi Oviyan Patra Puspawardhani, Gianti Ragil Pardiyono Ramadhanti, Ledina Resfi Siti Mulyasari Rinto Yusriski Rizal Firdaus Sinta Rahmawati