Maulana, Arief (2019) Analisa Fatigue pada Rangka Sepeda Trandem dengan Menggunakan Metode Elemen Hingga. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan moda transportasi sangat berkembang akhir-kahir ini. Sudah dangat banyak moda trasportasi yang digunakan dan dikembangkan di dunia, dan salah satu moda transportasi tertua dan termudah yang masih digunakan hingga saat ini adalah sepeda, dikarenakan sepeda merupakan moda transportasi yang cukup mura, mudah, dan tidak membutuhkan ruang yang banyak. Inovasi terhadap sepeda masih dilakukan hingga saat ini, salah satu contohnya adalah sepeda Trandem. Sepeda Trandem adalah sepeda hasil inovasi dari bapak Bambang Iskandriawan, selaku dosen dari jurusan Desain Produk ITS. Sepeda Trandem diciptakan untuk mengakomodir kebutuhan masyarakat akan sepeda solo dan sepeda tandem dalam satu sepeda. Oleh karena itu dibutuhkan penelitian-penelitian selanjutnya untuk melengkapi dan mendukung inovasi tersebut.
Penelitian dimulai dengan studi literatur, studi awal, serta pengumpulan data-data dari penelitian sebelumnya yang nantinya akan dijadikan dasaran untuk melakukan permodelan pada perangkat lunak ANSYS Workbench 18.1. Dilakukan permodelan dengan menggunakan solid meshing dengan ukuran 5 mm dan Span Angle Fine, serta pembebanan diakibatkan oleh pengendara dengan massa 100 kg tanpa memperhatikan kondisi jalan pada pembebanan minimum, dan memperhitungkan kondisi ketika menghadapi speed bump dengan tinggi ± 0.2 m sehingga diberikan koefisien dinasmis sebesar 3, data yang akan didapatkan berupa Maximum Stress Principal (Von Mises), yang selanjutnya akan diolah menjadi Fatigue Life dan Fatigue Safety Factor dari sepeda Trandem.
Hasil dari penelitian ini didapatkan Fatigue Life dari sepeda Trandem dapat mencapai angka 545 Tahun, dengan Fatigue Safety Factor sebesar 2.54, yang mana akan menjadi dasaran untuk menentukan umur dari rangka sepeda Trandem.
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There are a lot of transportation mode in this world, like aeroplane, car, motorcycle, etc. One of the oledst transportation mode in this world is bicycle. Bicycle is still used nowadays because of its price , or its simplicity that makes bicycle still used by many people. A lot of inovation is needed to satisfy the consument demand, wether on it price, design, function, life, etc. One of the inovation was invented by Mr. Bambang Iskandriawan, he invented “Trandem Bike”, as the solution for the lack of parking space, and the traffic problem in urban, or sub-urban region. Trandem bike is a combination betwee a solo bicycle, and tandem bicycle. People can choose the function of the bicycle anytime they want, because Trandem Bike can be used in two mode, solo, and tandem in one bicycle frame. This invention also need a lot of research to improve and guarantee the quality of this bike. From mechanical engineering view, there are a ot of testing and simulation that can be done to this frame, like static simulation, fatigue, etc., and in this research the author decide to analyze the frame of this bike using fatigue analysis to predict the Fatigue Life of this bike frame.
This research is began with literature study, which is looking for any literature about th fatigue failure, finite element method, bicycle testing standard, etc. The simulation was conduct by a finite element method software, like ANSYS Workbench 18.1., and compared to a manual calculation in the end of simulation. In this simulaton the author using a solid meshing with 5mm size, and fine span angle, whic selected after a convergence test. Loading Condition is concerned to operational Loading, and standard Loading (using TBIS 4210-6:2018). The simulation using TBIS 4210-6:2018 was conducted to make sure that this frame was complete the minimum test requirement of a bicycle frame. The operational Loading was obtained from normal Loading of two 100kg driver in tandem mode, and a 100 kg driver in solo mode. The result of the test is Maximum Stress (von misies) that used to conduct fatigue analysis to obtain Fatigue Life, and Fatigue Safety Factor of this frame.
The result of this simulation is, this frame was overdesigned because this frame can endure fatigue failure up to 1000 years. Improvement was needed to minimalizing the Fatigue Life. Imporvement of this bike was decreasing the thickness of frame pipe from 3 mm to 1.5 mm. This improvement finally reduce the Fatigue Life of this frame from up to 1000 years to only 18 years.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 620.112 6 Mau a-1 2019 |
| Uncontrolled Keywords: | Sepeda Trandem, Analisa Fatigue, Metode Elemen Hingga |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA418.38 Materials--Fatigue. T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Arief Maulana |
| Date Deposited: | 05 Jan 2022 02:38 |
| Last Modified: | 05 Jan 2022 02:38 |
| URI: | http://repository.its.ac.id/id/eprint/61575 |
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