Analisis Kegagalan Pada Shaft propeller Light Duty dengan Metode Elemen Hingga

Ilham Firmansyah, Muhammad Fakku (2024) Analisis Kegagalan Pada Shaft propeller Light Duty dengan Metode Elemen Hingga. Undergraduate thesis, UNIVERSITAS 17 AGUSTUS 1945 SURABAYA.

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Abstract

Penelitian ini memiliki tujuan yakni untuk mengetahui kegagalan struktur yang terjadi pada model shaft propeller kendaraan light duty dengan jenis material FCD450-10, SM45C, dan SCM440 akibat pembebanan statis dan dinamis yang terjadi. Analisa statika dilakukan untuk mengetahui nilai total displacement, tegangan Equivalent Stress dan maximum shear stress yang terjadi pada struktur shaft propeller, selanjutnya fatigue analysis dilakukan untuk mengetahui umur siklus. Penelitian ini dilakukan menggunakan metode elemen hingga berbasis simulasi pada software. Dengan membuat pemodelan 3D menggunakan solidworks 2022, yang selanjutnya model disimulasikan menggunakan Ansys workbench 2022 R1. Hasil simulasi FEM statis menunjukkan tiap material memiliki keunggulan dan kelemahan. Berdasarkan Analisa tegangan statik yang telah dilakukan, diperoleh hasil bahwa material FCD450-10 dinyatakan dalam kondisi yang paling baik diantara material yang lain dengan nilai equivalent stress yang paling kecil, yakni 0,34203 Mpa, dan memiliki nilai minimum shear stress paling rendah yakni sebesar 0,19294 MPa. Nilai maximum total displacement terbaik didapat pada material SCM440, dengan nilai paling kecil yakni 8,3405 mm. Berdasarkan hasil simulasi Random Vibration pada directional deformation material SCM440 dinyatakan dalam kondisi yang paling baik diantara material lainya, dengan nilai maximum directional deformation paling kecil yaitu 30,109 mm dan pada equivalent stress nilai maximum paling kecil diperoleh material SCM440 yaitu sebesar 84433 MPa. Untuk nilai displacement pada shaft propeller diperoleh hasil bahwa material SCM440 dinyatakan dalam kondisi yang paling baik, sedangkan hasil simulasi fatigue analysis dengan metode goodman diperoleh hasil bahwa material SCM440 dinyatakan dalam kondisi yang paling baik dengan nilai life cycle paling besar yakni 1,11e7 siklus. Kata kunci : Tegangan, Displacement, Umur Siklus, Random Vibration.

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