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All Journal Jurnal Teknik Mesin Jurnal Teknik ITS JMES: The International Journal of Mechanical Engineering and Sciences Sewagati
Wiwiek Hendrowati
Institut Teknologi Sepuluh Nopember
Aerospace Engineering Arts Humanities Automotive Engineering Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Pemanfaatan Mesin Pemipil Jagung untuk Meningkatkan Kinerja Petani Jagung di Desa Petung, Gresik Harus Laksana Guntur; Aida Annisa Amin Daman; Wiwiek Hendrowati
Sewagati Vol 6 No 2 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1019.147 KB) | DOI: 10.12962/j26139960.v6i2.243

Abstract

Desa Petung, Kecamatan Panceng, Kabupaten Gresik termasuk daerah penghasil jagung di Jawa Timur. Namun, para petani jagung mengalami kendala dalam memipil jagung karena masih menggunakan metode konvensional. Tim Pengabdi ITS bersama dengan mitra bekerja sama merancang mesin pemipil jagung dan diberikan kepada petani jagung di Desa Petung. Hal ini bertujuan agar petani dapat memanfaatkan mesin pemipil jagung untuk meningkatkan produktivitas produk jagung pipil. Berdasarkan penelitian terdahulu, kapasitas produksi manusia dalam memipil jagung yaitu sebesar 6 kg dalam satu jam. Pada pengujian mesin pemipil jagung yang telah dilaksanakan, mesin pemipil jagung dengan daya 7,5 HP memiliki kapasitas produksi rata-rata yaitu 1200 kg jagung. Hal ini diharapkan dapat membantu petani jagung untuk menghasilkan jagung pipil dengan waktu yang lebih cepat.
Rancang Bangun Mesin Pencacah Bonggol Jagung untuk Bahan Baku Briket Arang Wiwiek Hendrowati; Aida Annisa Amin Daman; Budi Harto; Nugraha Merdekawan
Sewagati Vol 4 No 3 (2020)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.635 KB)

Abstract

Desa Bolo terletak di Kecamatan Ujung Pangkah, Gresik, meraih juara satu sebagai penghasil jagung terbanyak di daerah bagian utara. Produk akhir jagung yang dihasilkan di des aini berupa biji jagung saja sehingga bonggol jagung menjadi menumpuk dan tidak termanfaatkan. Berdasarkan hal ini, tim pengabdi Departemen Teknik Mesin bekerjasama dengan Universitas Qomaruddin, Gresik merancang mesin pencacah bonggol jagung dengan harapan bonggol jagung dapat diolah menjadi potongan-potongan lebih kecil sebagai pakan ternak maupun sebagai briket. Mesin pencacah bonggol jagung terdiri dari mesin diesel sebagai penggerak transmisi, pulley yang menghubungkan penggerak dengan poros pencacah, pisau (berupa besi tumpul) sebagai pencacah bonggol jagung, saringan untuk memisahkan potongan besar dan kecil. Mesin pencacah ini dapat mencacah 5 kg bonggol jagung selama 2 menit dan 38 detik sehingga kapasitas bonggol jagung yang dapat diolah dalam satu jam sebanyak 120 kg bonggol jagung.
Analysis of the Electromagnetic Vibration Absorber (EMVA) Mechanism Placement in the MDoF System towards Vibration Reduction and Generated Electrical Energy Wiwiek Hendrowati; Aida Annisa Amin Daman; Nugraha Merdekawan
JMES: The International Journal of Mechanical Engineering and Sciences Vol 7 No 1 (2023)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v7i1.15519

Abstract

This research was conducted to determine the effect of the position of Electromagnetic Vibration Absorber (EMVA) to reduce the vibration of main system and to generate the energy. This article reports the results of a simulation and experimental study on the main system, which was excited by external force and the resulting vibration was reduced with an EMVA. The design of EMVA is in laboratory scale. The main system consists of a flat plate as a main mass and four springs, which are subjected to an excitation force that comes from the DC motor. The results show that both the simulation approach and experiment correspond well. The reduction of main system’s vibration is found to be affected by the position of EMVA. The maximum reduction in translation, rolling, and pitching direction occur at different position, which are at point 7 for translation and at point 1 for rolling and pitching. Meanwhile, the highest power generation occurs when the EMVA is at point 1.
Numerical Analysis of Translational Vibration Reduction Response on Drilling Process due to Additional Mass-Rubber Dynamic Vibration Absorber (MR-DVA) Dika Andini Suryandari; Wiwiek Hendrowati
JMES: The International Journal of Mechanical Engineering and Sciences Vol 6 No 2 (2022)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v6i2.13441

Abstract

Analysis of a Single Vertical Pendulum Mechanism on the Pontoon-Boat as a Wave Energy Harvester Aida Annisa Amin Daman; Wiwiek Hendrowati; Harus Laksana Guntur
JMES: The International Journal of Mechanical Engineering and Sciences Vol 2 No 2 (2018)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v2i2.6395

Abstract

The aims of this study are to model the wave energy harvester device using a single pendulum on a pontoon called Single Vertical Pendulum Mechanism (SVPM) and analyze the voltage generated by the mechanism. The simulation method was conducted in order to provide the power generated by SVPM. The SVPM’s dimension was designed on a laboratory scale and the wave amplitude was adjusted by the amplitude on the laboratory pool. The mechanism model uses wave energy as the excitation force of the pendulum. The pendulum oscillates and drives the transmission gear which transmits the force to the generator. The generator produces electrical energy. The variation used in the simulation was the mass of the pendulum, the length of the pendulum’s arm, and the wave amplitude. The maximum power that can be generated by SVPM was 5,735 Watt occurred when the arrangement of SVPM was using the pendulum mass of 0,75 kg and the pendulum length of 0,2 m. The parameter that most affect the generated power of SVPM was the wave amplitude.
Modeling And Analysis Mechanisms of Electrical Energy Generated By Power Sea Wave Type of Piezoelectric Rowboat Wiwiek Hendrowati; Moch Solichin; Harus Laksana Guntur
JMES: The International Journal of Mechanical Engineering and Sciences Vol 1 No 2 (2017)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v1i2.2620

Abstract

The availability of electricity in the middle of the sea is important for lighting the fishing boat. Therefore, it was designed on a rowboat mechanism associated with piezoelectric energy as the converter. This study simulates the movement of ocean waves with the frequency and amplitude variations that will produce different force. The force of moving components in the mechanism which further encourages piezoelectric cantilever. Deflection caused by the piezoelectric cantilever will produce electrical energy. The greater of the wave frequency, the greater displacement and velocity of thrustmass, so that electric power generated also increases. When the greater the number of Piezoelectric used, the electrical energy produced is getting smaller. This is due to the increasing number of hard piezoelectric added to be deflected. In this study, the maximum electrical energy produces the highest frequency, high amplitude and the number of piezoelectric slightly.
Co-Authors Aida Annisa Amin Daman Aida Annisa Amin Daman Almaarif Fahrey Nuh Ari Kurniawan Saputra Budi Harto Dika Andini Suryandari Dika Andini Suryandari Harus L.G. Harus Laksana Guntur Harus Laksana Guntur Moch Solichin Moch Solichin Newanda Asa Wahid Nugraha Merdekawan Nugraha Merdekawan Nugraha Merdekawan Nurahmi, Latifah Rahmat Susanto SHERLY OCTAVIA SARASWATI Wisnu Gilang Romadhon Arifiyanto