Browsing by Author "Margana, Riki Ridwan"

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    DETERMINATION OF INTERVAL PREVENTIVE CARE SULPHATE SODIUM PRODUCTION MACHINE WITH RELIABILITY CENTERED MAINTENANCE (RCM) APPROACH (Case Study at PT SPV Purwakarta)
    (Solid State Technology Volume: 63 Issue: 3, 2020) Margana, Riki Ridwan; Komarudin, Udin
    PT SPV is a company engaged in manufacturing that has a vision to be a company that produces quality sodium sulphate products until 2021. Historical data for 2017 and 2018 show the sodium sulphate production machine, which is a Centrifuge machine that functions to separate solids and liquids from sodium sulphate solutions has value the biggest downtime is 148.5 hours which results in disruption of the production process. The high value of downtime is caused by the company not having scheduled maintenance activities so that the machine often stops suddenly when operating. The purpose of this study was to determine the preventive maintenance intervals of the sodium sulphate production machine using the Reliability Centered Maintenance (RCM) approach. Where the RCM method will be integrated with the Failure Mode Effect Analysis (FMEA) method which is used as a failure mode analysis that occurs by calculating the highest Risk Priority Number (RPN) value on the machine and then calculating the damage time interval as a basis for determining the maintenance schedule to be performed. Based on the results of the study obtained the results of the failure mode analysis of centrifuge machines and critical components that most often experience damage, namely the second basket stage component. The second basket stage will experience sudden damage every 1814 hours based on the MTTF value and it is found that the average repair time of the second basketball stage component is 16.54 hours based on the MTTR value. The results of determining the treatment time interval with the criteria for minimizing downtime is 65 days for the maintenance time interval. Maintenance cost savings of Rp.4,108,778.5 or 74.10% when compared to the cost of corrective maintenance or scheduling of maintenance of the previous pusher centrifuge machine.
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    EVALUASI PENERAPAN MERDEKA BELAJAR KAMPUS MERDEKA TERHADAP PERFORMA CIVITAS AKADEMIK FAKULTAS TEKNIK UNIVERSITAS WIDYATAMA
    (Fakultas Teknik Universitas Widyatama, 2021-12) Istambul, Muhammad Rozahi; Iriani, Yani; Margana, Riki Ridwan; Supriadi, Hari; Nugraha, Ucu
    Pada Semester Genap Tahun 2020/2021 dan Ganjil Tahun 2021/2022 Fakultas Teknik Universitas Widyatama (UTama) telah menerapkan kebijakan program Merdeka Belajar Kampus Merdeka (MBKM), sebagai bagian dari pelaksana kebijakan Universitas. Fakultas Teknik UTama dengan dukungan pendanaan dari Program Penelitian Kebijakan Merdeka Belajar Kampus Merdeka Dan Pengabdian Masyarakat Berbasis Hasil Penelitian Dan Purwarupa Pts Ditjen Dikti Ristek Tahun Anggaran 2021 Kementerian Pendidikan dan Kebudayaan, telah melakukan penelitian Survey “Evaluasi Penerapan Merdeka Belajar Kampus Merdeka Terhadap Performa Civitas Akademik Fakultas Teknik Universitas Widyatama“. Tujuan dilakukannya survey tersebut secara praktis dan teoritis yang berguna bagi Pemerintah selaku pemangku kebijakan secara nasional dan UTama sebagai institusi pendidikan. Survey dilakukan pada 16-23 Desember 2021 dengan tujuan untuk mengevaluasi pelaksanaan program MBKM di Universitas Widyatama. Pada pelaksanaannya, survey tersebut dilakukan terhadap seluruh sivitas akademika Fakultas Teknik Universitas Widyatama,yaitu: Mahasiswa, Dosen, dan Tenaga Pendidik.