Article Per Year (5 Year)
p-Index From 2020 - 2025
1.048
P-Index
This Author published in this journals
All Journal Jurnal Kesehatan Komunitas Jurnal Mekanik Terapan Jurnal Keselamatan Kesehatan Kerja dan Lingkungan Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Lilik Dwi Setyana
Program Studi Diploma Jurusan Teknik Mesin, Universitas Gadjah Mada Yogyakarta
Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Perancangan Fixture Pada Proses Finishing Gerinda Tangan Sebagai Peningkatan Produktivitas Produk Spindle Knuckle D40 L di PT Manggala Perkasa Engineering Ridwan Ferdian; Budi Basuki; Setyana, Lilik Dwi; Aris Hendaryanto
Jurnal Mekanik Terapan Vol 5 No 1 (2024): April 2024
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v5i1.6302

Abstract

Proses finishing produk Spindle Knuckle D40 L merupakan proses repairing yang terdiri dari proses gerinda tangan dan bor tuner listrik. Sistem kerja proses finishing dilakukan dalam satu proses pengerjaan. Hasil analisis yang dilakukan, pencapaian output dari proses finishing tidak sesuai dengan target sebesar 50 pcs per jam dengan pencapaian output aktual rata-rata 43 pcs per jam. Pekerjaan secara manual dan metode kerja yang kurang efektif menjadi faktor dominan yang mempengaruhi hambatan tersebut. Solusi untuk menyelesaikan masalah tersebut yaitu dengan memperbaiki metode kerja melalui perancangan fixture pada proses gerinda tangan. Perbaikan yang telah dilakukan dapat menurunkan cycle time pada proses finishing, yang sebelumnya 83,5 detik menjadi 68,3 detik. Penurunan cycle time tersebut sebesar 17,7 % sehingga menjadikan target output finishing per jam produk Spindle Knuckle D40 L meningkat sebesar 20,9 % dari jumlah sebelumnya yaitu dari 43 pcs per jam menjadi 52 pcs per jam. Selain itu, perbaikan juga dapat menghemat biaya perusahaan sebesar Rp 234.420,- per bulan dan meningkatkan keselamatan kerja dalam meminimalisir potensi terjadinya cacat over pada produk Spindle Knuckle D40 L.
Analisa Patah Housing Flywheel Mesin Diesel Dump Truck Berdasarkan Sifat Fisik dan Mekanik Material Pramono, Yanuwar Ilpan; Krisnaputra, Radhian; Setyana, Lilik Dwi; Hendaryanto, I. Aris
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 1 (2024): JTRAB Volume 1, No 1, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i1.9296

Abstract

This research aims to identify the causes of material failure in the flywheel housing of diesel engines used in dump trucks in corporate sectors such as mining, plantations and infrastructure in Indonesia. Through mechanical testing which includes visual observations, tensile, impact and hardness tests, as well as microstructural observations and chemical composition analysis, this research found that the flywheel housing material has brittle properties. The test results show the highest tensile strength of 23.021 MPa, the average impact value of 0.0417 J/mm2, and the average hardness value of 106.708 VHN. The microstructure of the flywheel housing material is dominated by the Al-Si alloy element, which makes the material tend to be brittle. Several factors that can cause cracks in the flywheel housing include the work environment, material properties, lack of maintenance, and operational errors.
Analisa Crack Coil Spring Track Adjuster pada Undercarriage Excavator CAT 320GC Aldi Lavandida Utama; Santoso, Nugroho; Setyana, Lilik Dwi; Hendaryanto, Ignatius Aris
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.15209

Abstract

Heavy equipment, such as excavators, plays a crucial role in infrastructure and mining projects. The demanding worksite conditions and production targets require excavators to maintain high productivity, which can lead to material failures. A critical failure observed in the CAT 320GC excavator was the fracture of the coil spring in the undercarriage system. Several factors can contribute to coil spring failure, including worksite conditions, material defects, inadequate maintenance, and operational errors. This study aims to identify the root causes of coil spring fracture by analyzing its mechanical properties. The research methodology includes chemical composition analysis, visual and microstructural examination, hardness testing, and impact testing. The findings indicate that material failure was primarily caused by corrosion on the surface, which accelerated the fracture process. Additionally, repeated excessive loads from track shoe movements contributed to fatigue failure. The coil spring material was identified as high-carbon steel, closely resembling the 51xx (Chromium Steels) type. The fracture exhibited brittle characteristics with a granular or crystalline pattern, and the average impact energy was measured at 0.1541 J/mm². The coil spring material demonstrated an average hardness of 522.83 VHN, confirming its high hardness but brittle nature. The microstructural analysis revealed a predominance of fine lamellar pearlite in the dark regions of the fractured area.
Analisis Kegagalan Material Patahnya Coil Spring pada Track Adjuster Excavator PC 78 Leo Adi Saputra; Santoso, Nugroho; Setyana, Lilik Dwi; Basuki, Budi
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 1 (2025): JTRAB Volume 2, No 1, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i1.15707

Abstract

One of the critical components of an excavator's undercarriage is the coil spring, which frequently breaks due to extreme working conditions, lack of routine maintenance, and material defects. This coil spring failure often occurs in the PC 78 excavator unit. The resolution of this issue requires an undetermined period of time. This problem can lead to decreased and suboptimal excavator productivity. The objective of this study is to identify the causes of coil spring fractures, evaluate its mechanical strength, and determine the type of material used. The methods applied include chemical composition analysis, microstructure examination, hardness testing, and impact testing. Visual observations indicate that the coil spring failure is caused by material fatigue, crack initiation, propagation, and final fracture characterized by beach marks and striations. Chemical composition analysis reveals the dominance of iron (Fe), carbon (C), chromium (Cr), and manganese (Mn), classifying the material as AISI 51xx steel. Microstructural examination shows a dominance of bainite, which contributes to the material's hardness. Vickers hardness testing indicates high hardness values consistent with the observed microstructure. Impact testing results suggest that the fractured specimen exhibits ductile behavior.
Analisis Risiko Kesehatan Pajanan Silika Kristalin Respirabel Pasca Implementasi Dust Supression System di Industri Pengolahan Bijih Mineral Susanto, Arif; Hidayah, Nurulia; Setyana, Lilik Dwi; Prasetio, Diki Bima
Jurnal Keselamatan Kesehatan Kerja dan Lingkungan Vol. 6 No. 2 (2025): Juli-Desember 2025
Publisher : Fakultas Kesehatan Masyarakat Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jk3l.6.2.148-158.2025

Abstract

Industri pengolahan bijih mineral merupakan salah satu sektor yang menghasilkan silika kristalin respirabel (RCS), yang berpotensi menimbulkan penyakit akibat kerja seperti silikosis, PPOK, dan kanker paru. Penelitian ini bertujuan untuk menganalisis risiko kesehatan pekerja terhadap pajanan RCS setelah penerapan sistem pengendalian debu (dust suppression system) di area produksi. Penelitian dilakukan secara kuantitatif dengan desain cross-sectional, melibatkan 30 pekerja dari departemen produksi dan pemeliharaan. Pengukuran dilakukan menggunakan metode personal sampling sesuai standar NIOSH 7500. Hasil pengukuran menunjukkan bahwa konsentrasi RCS berada di bawah nilai ambang batas (NAB) ACGIH sebesar 0,025 mg/m³, dengan nilai excess cancer risk (ECR) berkisar antara 1,8.10-7 hingga 5,5.10-6, yang masih berada dalam rentang aman. Namun, tren peningkatan ECR seiring durasi dan intensitas pajanan menunjukkan perlunya pengendalian yang lebih ketat. Penelitian ini menyimpulkan bahwa meskipun sistem pengendalian debu telah menurunkan konsentrasi RCS secara signifikan, risiko kesehatan tetap ada akibat efek kumulatif jangka panjang. Pendekatan ALARA (As Low As Reasonably Achievable) sangat disarankan dalam pengendalian pajanan. Selain itu, pelaksanaan pemeriksaan kesehatan berkala, pelatihan penggunaan alat pelindung diri, dan pemantauan efektivitas sistem pengendalian debu perlu diintegrasikan sebagai bagian dari strategi keselamatan dan kesehatan kerja untuk melindungi pekerja secara berkelanjutan.
Analisis Risiko Kesehatan Pajanan Debu Respirabel Pasca Instalasi Dust Supression System di Industri Pengolahan Bijih Mineral Susanto, Arif; Hidayah, Nurulia; Budi, Savitri Citra; Setyana, Lilik Dwi
Jurnal Kesehatan Komunitas Vol 11 No 3 (2025): Jurnal Kesehatan Komunitas
Publisher : Universitas Hang Tuah Pekanbaru

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25311/keskom.Vol11.Iss3.2374

Abstract

This study aimed to assess the health risks associated with respirable dust exposure following the implementation of a dust suppression system. A cross-sectional quantitative design was employed, involving 30 workers from PTX’s based on NIOSH. Personal dust sampling was conducted using the NMAM0600 method. The results indicated that the average concentration of respirable dust was 0.4760mg/m³, below the threshold limit value (TLV) of 3 mg/m³ set by the ACGIH. Risk characterization using the risk quotient (RQ), RQ<1. Simulation using the MPPD model revealed that particles with a diameter of approximately 4 µm had the highest deposition rate in the thoracic region of the respiratory tract, potentially triggering inflammatory responses and pulmonary fibrosis. Despite the low current exposure levels, continuous monitoring and enhancement of dust control measures are recommended to prevent long-term health effects such as silicosis and COPD. The study emphasizes the importance of regular health surveillance, appropriate use of personal protective equipment, and adherence to the ALARA (As Low As Reasonably Achievable) principle to ensure occupational safety and health in mineral ore processing environments.
Co-Authors Aldi Lavandida Utama Arif Susanto Budi Basuki Budi Basuki, Budi Hidayah, Nurulia Ignatius Aris Hendaryanto Leo Adi Saputra Nugroho Santoso Pramono, Yanuwar Ilpan Prasetio, Diki Bima Radhian Krisnaputra Ridwan Ferdian Savitri Citra Budi