Ilmy, Irvan (2018) Studi Eksperimen Pengaruh Variasi Konstanta Pegas dan Massa Roller Continuously Variable Transmission (CVT) Terhadap Performa Kendaraan Honda Vario 150 CC. Undergraduate thesis, Institut TeknologiSepuluh Nopember.
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Abstract
Saat ini perkembangan dunia otomotif khususnya sepeda motor terus dikembangkan untuk mendapatkan kenyamanan dalam pengendalian. Produsen otomotif khususnya roda dua (sepeda motor) telah memproduksi kendaraan yang memakai sistem transmisi otomatis yang disebut dengan CVT (Continuously Variable Transmission) sistem. Sistem transmisi ini tidak menggunakan roda gigi namun memanfaatkan sistem pulley and belt. Tugas akhir ini menganalisa tentang komponen Continuously Variable Transmission yaitu pegas dan roller CVT. Banyaknya variasi pegas dan massa roller yang dijual dipasaran mengindikasikan bahwa pemilihan massa roller yang sesuai dapat memperbaiki performa dari kendaraan standart. Dan ini yang mendasari terlaksananya tugas akhir kali ini.
Tujuan dari tugas akhir ini untuk membandingkan nilai gaya dorong, kecepatan maksimum, percepatan maksimum kendaraan yang dihasilkan masing-masing pegas dan roller CVT, dan mencari pegas dan roller CVT terbaik untuk performa kendaraan. Pengujian ini menggunakan empat pegas CVT dan empat roller CVT dengan nilai konstanta dan berat yang berbeda. Pengujian dilakukan dengan memasang masing-masing pegas dan roller CVT pada kendaraan dan mengambil data melalui proses dynotest. Pengujian menggunakan alat dynotest ini menghasilkan nilai daya, torsi, dan putaran mesin yang dihasilkan kendaraan. Dari data tersebut akan dikonversi menjadi nilai gaya dorong dan kecepatan kendaraan. Untuk memperoleh kecepatan maksimum kendaraan, perlu dilakukan perhitungan gaya hambat akibat gesekan ban dengan jalan dan gaya hambat akibat udara. Gaya hambat akibat gesekan ban dengan jalan dipengaruhi oleh tekanan ban kendaraan. Gaya hambat akibat udara sangat dipengaruhi oleh kecepatan. Dari nilai gaya dorong, kedua gaya hambat, dan massa kendaraan dapat diketahui nilai percepatan kendaraan. Pegas KTC 2000 rpm (k=31,59 N/mm) mampu menghasilkan gaya dorong kendaraan terbesar. Roller CVT dengan 18 gram mampu menghasilkan kecepatan maksimum senilai 128,29 km/jam. Pegas KTC 2000 rpm (k=31,59 N/mm) cocok digunakan untuk berakselerasi di jalan kota dan jalan lurus. Sedangkan variasi roller 18 gram cocok digunakan untuk berakselerasi di jalan luar kota karena menghasilkan kecepatan maksimum paling besar. Roller 18 gram juga cocok digunakan di kedua medan jalan karena mampu menghasilkan kecepatan maksimum tertinggi.============================================================================================Currently the development of the automotive world, especially motorcycles continue to be developed to gain comfort in control. Automotive manufacturers, especially two-wheeler (motorcycle) has been producing vehicles that use automatic transmission system called CVT (Continuously Variable Transmission) system. This transmission system does not use gears but utilizes pulley and belt systems. This final project analyze about Continuously Variable Transmission component that is spring and roller CVT. The large number of spring variations and roller mass sold in the market indicates that appropriate roller mass selection can improve the performance of standard vehicles. And this is what underlies the end of this final project.
The purpose of this final project is to compare the value of thrust, maximum speed, maximum acceleration of the vehicle produced by each spring and CVT roller, and look for the best CVT springs and rollers for vehicle performance. This test uses four CVT springs and four CVT rollers with different constant and weight values. Testing is done by installing each spring and CVT roller on the vehicle and retrieve data through the dynotest process. Testing using this dynotest tool generates the rated power, torque, and engine speed generated by the vehicle. From the data will be converted to the value of thrust and speed of the vehicle. To obtain the maximum speed of the vehicle, it is necessary to calculate the drag force due to the friction of the tire with the road and the air drag. Inhibition force due to friction of the tire with the road influenced by vehicle tire pressure. The air-inhibitory force is strongly influenced by the speed. From the value of thrust force, both drag force, and mass of vehicle can be known value of vehicle acceleration. The KTC 2000 rpm springs (k = 31.59 N / mm) are capable of producing the greatest vehicle thrust force. Roller CVT with 18 grams capable of producing a maximum speed of 128.29 km / h. KTC 2000 rpm springs (k = 31.59 N / mm) is suitable for accelerating on city streets and straight roads. While the 18 gram roller variation is suitable to accelerate in the way out of town because it produces the largest maximum speed. Roller 18 grams is also suitable for use in both road terrain because it is able to produce the highest maximum speed.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Continuously Variable Transmission (CVT), Pegas CVT, Roller CVT, Rasio Transmisi, Sistem Transmisi Otomatis, Dynotest |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design T Technology > TS Manufactures T Technology > TS Manufactures > TS171 Product design |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | IRVAN ILMY |
| Date Deposited: | 11 Apr 2018 02:19 |
| Last Modified: | 11 Apr 2018 02:19 |
| URI: | http://repository.its.ac.id/id/eprint/50669 |
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