EVALUASI KEKUATAN STRUKTURAL RANGKA PENOPANG SISTEM PRODUKSI BIODIESEL MENGGUNAKAN ANALISIS ELEMEN HINGGA
DOI:
https://doi.org/10.51510/sinergipolmed.v7i3.3255Keywords:
Rangka penopang, produksi biodiesel, metode elemen hingga, tegangan von Mises, faktor keamananAbstract
Kebutuhan akan peralatan produksi biodiesel yang aman menuntut rancangan rangka penopang yang mampu menahan beban komponen dan fluida proses. Penelitian ini bertujuan mengevaluasi kekuatan struktur rangka baja tahan karat AISI 304 pada sistem produksi biodiesel berkapasitas 20 L per proses. Geometri rangka dimodelkan dalam tiga dimensi dan dievaluasi menggunakan metode elemen hingga terhadap pembebanan statik. Rangka menggunakan profil berukuran 40 × 40 mm dengan ketebalan 2 mm untuk menopang tiga reaktor dan peralatan pendukung. Hasil simulasi menunjukkan tegangan von Mises maksimum sebesar 57,86 MPa, lebih rendah daripada kekuatan luluh material sebesar 205 MPa. Faktor keamanan minimum yang dilaporkan mencapai 3,5, dengan perpindahan maksimum pada model utama sebesar 0,8564 mm. Konsentrasi tegangan muncul pada sambungan balok dan kolom rangka. Hasil ini menunjukkan bahwa rancangan memiliki margin kekuatan terhadap luluh untuk kondisi pembebanan statik yang dimodelkan. Meskipun demikian, kelayakan operasi belum dapat dipastikan tanpa pengujian purwarupa, analisis kelelahan, dan verifikasi kualitas model numerik.
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