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Daisman Purnomo Bayyu Aji
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Penyuluhan Bahaya Banjir terhadap Kelistrikan dan Korosi Peralatan Elektronika Rumah Tangga Syah Alam; Lydia Sari; Indra Surjati; Daisman Purnomo Bayyu Aji
Jurnal Pengabdian Masyarakat IPTEKS Vol 7, No 2 (2021): JURNAL PENGABDIAN MASYARAKAT IPTEKS
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jpmi.v7i2.4802

Abstract

Wilayah Jabodetabek mengalami banjir yang cukup parah di beberapa wilayah pada tahun 2020 salah satunya adalah wilayah Kelurahan Tanjung Duren Utara, Kecamatan Grogol Petamburan, Jakarta Barat. Curah hujan yang ekstrim yaitu 377 mm/hari membuat hampir seluruh wilayah DKI Jakarta dan sekitarnya tergenang banjir. Selain itu, drainase yang kurang lancar membuat air menggenang sehingga menyebabkan banjir. Efek dari bencana banjir adalah banyaknya rumah warga yang terendam sehingga kelistrikan dan peralatan elektronika yang dimiliki menjadi rusak dan korosi. Kegiatan Pengabdian Kepada Masyarakat (PkM) yang dilakukan bertujuan memberikan penyuluhan kepada masyarakat di wilayah Kelurahan Tanjung Duren Utara RW 04, RT 0010 terkait bahaya banjir terhadap kelistrikan rumah tangga dan korosi pada perangkat elektronika. Metode yang dilakukan dalam kegiatan PkM ini adalah memberikan penyuluhan secara daring kepada masyarakat RT 0010 / RW 04, Kelurahan Tanjung Duren Utara, Kecamatan Grogol Petamburan , Jakarta Barat. Hasil yang diperoleh adalah meningkatnya pemahaman masyarakat terkait bahaya banjir terhadap kelistrikan rumah tangga ditunjukkan dengan hasil pre test dan post test di dapatkan rata-rata masing-masing yaitu 41 dan 84. Pemahaman masyarakat terkait bahaya banjir terhadap kelistrikan meningkat sampai dengan 49 %. Selain itu, rata-rata kepuasan mitra terhadap materi yang disampaikan adalah 84 % , hal ini menunjukkan bahwa materi yang disampaikan oleh tim pemateri sangat bermanfaat bagi peserta penyuluhan.
Detection and root cause analysis of minor tread defects in tire manufacturing using optical laser profilometry and fault tree analysis Arwan Suwandoyo; Daisman Purnomo Bayyu Aji
Jurnal Polimesin Vol 24, No 3 (2026): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i3.8903

Abstract

Tire tread quality plays an important role in tire performance, safety, and service life. Minor tread defects, characterized by local surface irregularities and thickness deviations, remain a common challenge in tire manufacturing due to their impact on dimensional consistency. This study presents a method for detecting minor thread defects using a non-contact optical laser profilometer, with a measurement accuracy of 0.1 mm, to obtain high-resolution tread surface profile mapping. The purpose of this study is to address the issue of minor tread defects by integrating a non-contact optical laser profilometer with Fault Tree Analysis (FTA). After improvements to the method, the results show that the average percentage of defects can be reduced from an average of 0.07% to an average of 0.03%. The factor causing severe tread defects is the material with a small volume in the tread thickness. In tread measurement, laser triangulation technology generates contour data without physical contact, preventing deformation and enabling measurements of elastic materials. The scanned data were processed using a contour-extraction algorithm and geometric deviation analysis to identify anomalies, such as variations in tire tread depth. Experimental results showed a thickness deviation of −0.69 mm at a width of 15 mm, exceeding the permissible tolerance limit of +0.3 mm, indicating a condition significantly outside the specifications or standards for the tire tread material. The measurement system demonstrated high repeatability and sensitivity in detecting local surface deviations that could not be identified through visual inspection. Furthermore, integrating the optical laser profilometer with FTA enabled the systematic identification of the root cause of the defect, traced to a dimensional mismatch in the tire tread extrusion die. The implementation results could reduce or decrease light tread defects and the total percentage of light tread defects in tires.
Co-Authors Arwan Suwandoyo Indra Surjati Lydia Sari Syah Alam