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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Ilmu dan Teknologi Kelautan Tropis Diponegoro Journal of Management Jurnal Pendidikan Teknik Mesin Konversi ELINVO (Electronics, Informatics, and Vocational Education) An-Nuha : Jurnal Kajian Islam, Pendidikan, Budaya Dan Sosial Prosiding Seminar Nasional Sains dan Teknologi Terapan J-SAKTI (Jurnal Sains Komputer dan Informatika) IDENTIFIKASI: Jurnal Ilmiah Keselamatan, Kesehatan Kerja dan Lindungan Lingkungan Seminar Nasional Lahan Suboptimal Indonesian Journal of Engineering and Technology (INAJET) J-SAKTI (Jurnal Sains Komputer dan Informatika) SWARNA Madani: Multidisciplinary Scientific Journal Journal of Engineering Science and Technology Management IWTJ : International Water Transport Journal Indonesian Proceedings and Annual Conference of Islamic Law And Sharia Economic (IPACILSE) Jurnal Ilmu Ekonomi, Pendidikan dan Teknik (IDENTIK) Jurnal Rekayasa Mesin Automotive Innovations Journal
Aji Nugroho
Teknik Kimia, Fakultas Teknik Universitas Muhammadiyah Jakarta
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Analisis Sudut Pisau Pada Mesin Pencacah Rumput Gajah Untuk Pembuatan Silase Pakan Ternak Sapi Nugraha, Muhammad Erlangga Adi; Wulandari, Diah; Utama, Firman Yasa; Nugroho, Aji
Jurnal Ilmu Ekonomi, Pendidikan dan Teknik Vol. 3 No. 1 (2026): IDENTIK - Januari
Publisher : CV. SINAR HOWUHOWU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70134/identik.v3i1.1285

Abstract

This study examines how the blade angle of an elephant grass chopping machine affects the chopping results used for making cattle feed silage. Elephant grass needs to be chopped to a standard size for silage production, with the ideal chop length ranging from 2–5 cm and relatively uniform, so that the fermentation process runs properly and the feed is easier for livestock to consume. The research was conducted using an experimental method with 1 kg of fresh elephant grass for each trial. The chopped output was classified into three size categories: <2 cm, 2–5 cm, and >5 cm, to determine which met the silage standard most effectively. The study tested three blade angles—30°, 45°, and 60°—and three machine rotational speeds (1700 rpm, 2000 rpm, and 2300 rpm) to evaluate their effects on chopping time, cut size distribution, and processing capacity. The results show that the best performance in terms of machine rotational speed at the 30° blade angle occurred at 2300 rpm. The highest percentage of chopped material within the 2–5 cm size range was obtained at a 45° blade angle, reaching approximately 55–58% of the total chopped output, indicating the most optimal conformity with silage size standards.
Strength Analysis of Micro Wind Turbine Blade Structure Made of Composite Material Using Finite Element Analysis Maulana, Rafi Arifin; Puspitasari, Dewi; Abdi, Ferly Isnomo; Nugroho, Aji
Journal of Engineering Science and Technology Management (JES-TM) Vol. 6 No. 1 (2026): Maret 2026
Publisher : Journal of Engineering Science and Technology Management

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Abstract

This study analyzes the Structural Strength of micro wind turbine blades made of CFRP and GFRP composites using the Finite Element Analysis (FEA) method. Aerodynamic loads are obtained from QBlade simulations at a wind speed of 12 m/s and applied as non-uniform pressure on the blades. Composite modeling is performed with ANSYS Composite PrepPost (ACP) using a 4-ply laminated composite configuration with fiber orientations of 0°, 45°, −45°, and 90° and varying ply thicknesses along the blade. Static analysis shows that the CFRP blade produces a Von Mises stress of 15,648 MPa with a maximum displacement of 3.1616 mm, while the GFRP blade produces a stress of 12,786 MPa with a maximum displacement of 6,947 mm. These results indicate that CFRP has better Structural stiffness than GFRP, making it more suitable for micro wind turbine blade applications that require high Structural stability.
Co-Authors Abdi, Ferly Achmad Nugrahantoro Aldio, Bintang Tri Andrew Sabbathinus Putra Subagio, Andrew Ardiansyah, Ardi Ariyanto, Sudirman Arjuna, Ifan Sheva Armelia Putri, Trida Arya Mahendra Sakti Asyroh, Muhammad Fakhril Kaffah Athiek Sri Redjeki Azam Muzakhim Imamuddin Aziz, Dadang Abdul Bekti Wulandari Caecilia Sri Haryanti Dahnia, Lilis Dewi Puspitasari Diah Wulandari Diandra, Chaska Dwi Susanto Dyah Riandadari Faizah, Isti Ferly Isnomo Abdi Firman Yasa Utama Fitri Ganda, Andita Nataria Ganda, Andita Ganda, Andita Nataria Fitri Husaini, Fahrian Intania, Naila Janti Soegiastuti Kharismajati, Gema khuluq ma'addin, khusnul Maulana, Rafi Arifin Ma’addin, Khusnul Khuluq Meirinawati, Hanny Mohammad Noor Hidayat Mubin, Moh. Nurul Munir, Abdullah Faiq Noeryanto, Noeryanto Noor Sulistiyono Nugraha, Muhammad Erlangga Adi Nur Rohman, Muhammad Octa, Moch. Hersan Maudian P. M. Winarno Periyanto, Ari Peryanto, Ari Prasetiyo, Prembayun Pustika, Rita Rachman Arief, Rachman Rahmadania, Ella Ramadhani A, Gilang Ratna Ika Putri Retno Cahya Mukti Rizal Hari Magnadi Rizky Ramadhani, Muhammad Rusydi Umar Sa'adi, Sa'adi Shodikin, Eko Ngabdul Siswahyudianto Sry Lidya, Jessica Sutrisno, Slamet Prasetyo Sutrisno, Sri Kelana Suwahyo - Tijanul Uluum, Ahmad Tri agung Wildan, Muhammad Wildan Satrio Bimo