Analisis Interference Fit Antara Ban Airless Dan Velg Sepeda Motor Dengan Metode Elemen Hingga

Prathama, Raihan Ariq (2020) Analisis Interference Fit Antara Ban Airless Dan Velg Sepeda Motor Dengan Metode Elemen Hingga. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Ban merupakan bagian dari kendaraan yang berperan penting dalam kenyamanan dan keamanan dalam proses berkendara. Sebagai bentuk dari perkembangan teknologi kendaraan, ban airless dihadirkan untuk mengatasi permasalahan yang ada pada ban radial. Namun, ban airless belum bisa diproduksi secara massal karena masih dalam tahap penelitian, salah satunya terkait ukuran fitting ban airless pada velg. Apabila fitting ban pada velg terlalu longgar, velg tidak mampu mentransmisikan gaya dan torsi pada ban sehingga terjadi slip. Apabila fitting ban pada velg terlalu rapat, pemasangan ban ke velg akan lebih sulit serta memungkinkan timbulnya tegangan berlebih yang mengakibatkan ban mengalami kerusakan (crack). Maka dari itu, perlu dilakukan analisis interference fit antara ban airless dengan velg. Pada penelitian ini dilakukan analisis interference fitting ban airless pada velg ban sepeda motor menggunakan software ANSYS Workbench 18.1: Static Structural. Tahapan penelitian ini dimulai dengan membuat desain assembly ban airless dan velg menggunakan SOLIDWORKS 2018. Desain ban airless mengacu pada penelitian dari Agus Sigit Pramono et al. pada tahun 2019 sedangkan desain velg mengacu pada ukuran velg yang digunakan untuk sepeda motor matic. Kemudian, desain tersebut disimulasikan menggunakan software ANSYS Workbench 18.1 dengan metode static structural. Simulasi dilakukan dengan variasi fitting allowance dari ukuran 0,2 mm hingga 2 mm denganx perbedaan ukuran tiap simulasinya sebesar 0,2 mm. Hasil yang diamati yaitu total deformation, von-mises stress, dan contact pressure. Dari hasil contact pressure tersebut, dengan rumus perhitungan yang ada didapatkan nilai torsi akibat interference fit. Nilai torsi ini kemudian dibandingkan dengan torsi roda sepeda motor, yaitu sebesar 290822 N.mm untuk mengetahui apakah terjadi slip pada ban airless terhadap velg. Hasil penelitian menunjukkan bahwa nilai tegangan terkecil didapatkan ketika fitting allowance 0,2 mm yaitu sebesar 0,0462 MPa sedangkan nilai tegangan terbesar didapatkan ketika fitting allowance 2 mm yaitu sbesar 0,5691 MPa. Selain itu, didapatkan bahwa ukuran minimum fitting ban airless pada velg agar menghasilkan nilai torsi yang sama dengan nilai torsi roda sehingga tidak terjadi slip pada ban airless terhadap velg yaitu sebesar 0,7216 mm ====================================================================================================== Tyres are part of vehicle that plays an important role in comfort and safety in the driving process. As a form of vehicle technology developments, airless tires are presented to overcome the problems that exist in radial tires. However, airless tires have not been mass-produced because they are still in the research phase, one of them is related to the size of airless tire fittings on the rim. When the tire fittings on the rim are too loose, the wheels are not able to transmit the force and torque of the tires so that the slip occurs. If the tire fittings on the rim are too tightly, the mounting of the tire to the rim will be more difficult and allow the occurance excess stress resulting in the tire experiencing damage (crack). Therefore, an interference fit analysis is required using the finite element method. In this research, interference fitting analysis of airless tire on motorcycle tire rim was conducted using ANSYS Workbench 18.1: Static Structural software. The phase of the research began with the design of airless tire and the rim assembly using SOLIDWORKS 2018. The airless tire design refers to the research of Agus Sigit Pramono et al. in 2019 while the rim design refers to the size of the rim used for matic motorcycle. Then, the design was simulated using ANSYS Workbench 18.1 software with static structural method. The simulation was done with a variation of the fitting allowances from 0.2 mm to 2 mm with the difference of each simulation of 0.2 mm. The results observed were total deformation, von-mises stress, and contact pressure. From the result of thexii contact pressure, with the existing calculation formula, torque value due to interference fit obtained. This torque value was then compared with the wheel torque, which is 290822 N.mm to determine wether there is an airless tire slip against the rim. The result shows that the smallest stress value is obtained with the fitting allowance of 0.2 mm that is 0.0462 MPa while the largest stress value is obtained with the fitting allowance of 2 mm that is 0.5691 MPa. In addition, it is obtained that the minimum size of the airless tire fitting in the rim to produce the same torque value as the wheel torque so that there is no slip on the airless tire against the rim is 0.7216 mm

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Ban Airless, Velg, Interference Fit, Finite Element Method, ANSYS Workbench 18.1
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL152.5 Motor vehicles Driving
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: RAIHAN ARIQ PRATHAMA
Date Deposited: 24 Aug 2020 03:36
Last Modified: 24 Aug 2020 03:36
URI: https://repository.its.ac.id/id/eprint/80495

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