PEMODELAN KEAUSAN PIN-ON-DISC DENGAN ANALISA ELEMEN HINGGA
DOI:
https://doi.org/10.36499/jim.v7i2.104Abstract
Dunia engineering tidak bisa dilepaskan dari mekanisme perkontakan
antara komponen mesin yang satu dengan yang lain. Berbagai masalah
dapat timbul akibat kontak ini, diantaranya adalah keausan. Pemodelan
keausan pin-on-disc antara baja dengan baja dimodelkan dengan analisa
elemen hingga (FEA). Kontak sliding disederhanakan menjadi model 2D
dengan input sifat-sifat material berbantuan software ANSYS. Hasil simulasi
berupa tekanan kontak rata-rata digunakan untuk menghitung keausan
Model Archard. Updating geometry dilakukan untuk mengetahui besarnya
keausan yang terjadi pada pin. Hasil pemodelan menunjukkan jari-jari
kontak dan keausan mengalami peningkatan sangat signifikan pada tahap
awal, kemudian mencapai kestabilan seiring dengan bertambahnya jarak
sliding. Kestabilan tercapai setelah menempuh jarak sliding 80405 mm.
Fenomena kestabilan aus ini memperlihatkan bahwa sistem telah berada
dalam fase steady state setelah melewati running-in dalam aplikasi
pemesinan.
Kata kunci:Â keausan, pin-on-disc, upadating geometry, FEA
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