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All Journal Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Jurnal Sistem Informasi dan Sains Teknologi
Zaki, Abdul
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Computer Science & IT Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISA GETARAN BEARING BERBASIS VARIASI JARAK PENYANGGA PADA ALAT UJI PUTARAN KRITIS Zaki, Abdul; Hartono, Budi; Sutoyo, Edi
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 4 No. 1 (2018)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (564.816 KB) | DOI: 10.32832/ame.v4i1.986

Abstract

This study focused on variation of buffer distance as well as different shaft materials and 3 loading of test specimens. Obtained from the test results on the aluminum shaft at a buffer distance of 60 cm the largest vibration value occurs on the x axis of 17.8 mm/s and the largest deflection occurs at 0.45 m with a weight of 0.135 kg is 0.044 m. Experiment using a buffer distance of 80 cm the largest vibration value occurs on the z axis of 12.6 mm / s and the largest deflection value occurs at 0.6 m with a weight of 0.135 kg is 0.046 m. Experiment using a buffer distance of 100 cm the largest vibration value occurs on the z axis of 14.9 mm/s and the largest deflection occurs at a distance of 0.75 m with a weight of 0.135 kg is 0.088 m. Tests on the stainless steel axle at a buffer distance of 60 cm the largest vibration value occurs on the z axis of 24.1 mm/s and the largest deflection value occurs at a distance of 0.45 m with a weight of 0.135 kg is 0.0037 m. Test uasing a buffer distance of 80 cm the largest vibration value occurs on the x axis of 22.6 mm/s and the largest deflection value occurs at a distance of 0.6 m with a weight of 0.011 kg is 0.046 m. Pada jarak penyangga 100 cm nilai getaran terbesar terjadi pada sumbu z yaitu 14,2 mm/s dan nilai defleksi terbesar terjadi pada jarak 0,75 dengan berat 0,135 yaitu 0,057 m. Testing on the copper shaft at a buffer distance of 60 cm the largest vibration value occurs on the x axis of 20 mm/s and the largest deflection value occurs at a distance of 0.45 m with a weight of 0.135 kg is 0.0032 m. Experiment using a buffer distance of 80 cm the largest vibration value occurs on the x axis of 15 mm/s and the largest deflection value occurs at a distance of 0.6 m with a weight of 0.135 kg is 0.017 m. Test using a buffer distance of 100 cm the largest vibration value occurs on the x axis of 12 mm/s and the largest deflection value occurs at a distance of 0.75 m with a weight of 0.135 kg is 0.119 m.
ANALISIS DAN PENERAPAN PEMODELAN PROSES BISNIS DI CAFE OKA DEARY MENGGUNAKAN BUSSINES PROCCES MODEL AND NOTATION (BPMN) Ilahi, Wahyu Rahmat; Safa’ah, Hikmawati; Yolanda, Marisa Tri; Febrianti, Resti; Zahra, Rizka Az; Zaki, Abdul; Novembra, Muhammad Anggun
Jurnal Sistem Informasi dan Sains Teknologi Vol 7, No 2 (2025): Jurnal Sistem Informasi dan Sains Teknologi
Publisher : Universitas Trilogi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31326/sistek.v7i2.2353

Abstract

ABSTRAK Penelitian ini menganalisis dan merancang ulang proses bisnis Café Oka Deary, sebuah UMKM di sektor kuliner, demi peningkatan efisiensi operasional dan kepuasan pelanggan. Analisis awal menunjukkan adanya pemborosan signifikan seperti waktu tunggu (Waiting), gerakan tak efisien (Motion), dan pekerjaan berulang (Overprocessing) akibat proses manual. Secara kuantitatif, Flow Analysis mengungkap Cycle Time 21 menit dengan Cycle Time Efficiency (CTE) hanya 47,6%, menandakan banyak waktu non-produktif. Untuk mengatasi ini, Business Process Model and Notation (BPMN) digunakan untuk merancang ulang alur kerja. Desain ulang mengusulkan digitalisasi pemesanan dan pembayaran, meliputi scan barcode menu, pemesanan via sistem, dan pembayaran m-banking yang terintegrasi langsung ke dapur. Redesain ini diharapkan mampu memangkas pemborosan, mempercepat siklus pelayanan, dan secara substansial meningkatkan efisiensi operasional serta kepuasan pelanggan di Café Oka Deary.
Co-Authors Budi Hartono Febrianti, Resti Ilahi, Wahyu Rahmat Novembra, Muhammad Anggun Safa’ah, Hikmawati Sutoyo, Edi Yolanda, Marisa Tri Zahra, Rizka Az