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All Journal Abdimasku : Jurnal Pengabdian Masyarakat Jurnal Polimesin
Paryanto Dwi Setyawan
University of Mataram
Automotive Engineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Diseminasi Alat Pengirat Bambu ke Pengrajin Bambu di Desa Radamata, Sumba Barat Daya - Salman; - Sugiman; Paryanto Dwi Setyawan; - Sinarep; I Made Adi Sayoga
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 2 (2023): Mei 2023
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/ja.v6i2.865

Abstract

Pemanfaatan bambu seyogyanya menciptakan peluang nilai tambah yang lebih tinggi untuk meningkatkan pendapatan masyarakat. Perlu dilakukan sinergitas program-program pemerintah lintas sektor untuk dapat mewujudkan pengembangan bambu yang terintegrasi sehingga menjadikan bambu sebagai penggerak ekonomi rakyat. Karena itulah dengan tujuan untuk mengoptimalkan potensi pengembangan pengolahan bambu di daerah tertinggal, maka tim pelaksana peningkatan kapasitas tenaga kerja non pertanian melakukan diseminasi alat pengirat bambu di di Sumba Barat Daya, Nusa Tenggara Timur.  Kegiatan diawali dengan pembuatan alat pengirat bambu. melalui tahap perancangan sebelumnya dari tim LPPM Unram. Selanjutnya alat di-diseminasi ke pengrajin bambu di Sumba Barat Daya. Hasil dari kegiatan adalah adanya sikap antusiasme dari para pengrajin dan adanya alat pengirat bambu pada pengrajin setempat.
Experimental investigation of vibration characteristics in a small-scale rotating system using time- and frequency-domain analysis Salman Salman; I Dewa Ketut Okariawan; Paryanto Dwi Setyawan
Jurnal Polimesin Vol 24, No 4 (2026): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i4.9142

Abstract

This research stems from the problem that adding unbalance mass to a rotating shaft alters system vibration characteristics, a phenomenon that remains insufficiently quantified in small-scale rotating engines. This study aims to analyze the effects of variations in mass position, radial distance, and rotational speed on the vibration characteristics of a small-scale engine using combined time-domain and frequency-domain approaches. A quantitative experimental design was conducted across 27 treatment combinations, evaluating mass distances (5-25 cm) and speeds up to 860 rpm (14.33 Hz). Data acquisition utilized an accelerometer-microcontroller setup, analyzed via peak acceleration, RMS, and FFT methods. Results show a direct proportional relationship between mass radial distance and vibration amplitude, with the highest response observed at a 25 cm load distance and 860 rpm. The y1-axis exhibited the highest acceleration and RMS values, identifying it as the most sensitive measurement axis for condition monitoring. FFT analysis revealed dominant spectral peaks at the fundamental shaft rotational frequency (approximately 14.3 Hz at 860 rpm), accompanied by sub-synchronous and harmonic components induced by mass imbalance. In conclusion, vibration response in small-scale engines is heavily governed by mass location and rotational speed, underscoring the necessity of strategic sensor orientation for accurate fault detection.
Co-Authors - Salman - Sinarep I Dewa Ketut Okariawan I Made Adi Sayoga Salman Salman Sugiman .