Komposit Serat Kelapa - Epoxy Sebagai Material Alternatif Kampas Rem Sepeda Motor

Safitri, Shofia Dewi (2017) Komposit Serat Kelapa - Epoxy Sebagai Material Alternatif Kampas Rem Sepeda Motor. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kampas rem merupakan salah satu komponen yang penting dalam sistem pengereman yang berfungsi untuk mengurangi maupun menghentikan laju kendaraan. Bahan dasar kampas rem secara umum ada dua yaitu asbestos dan non asbestos. Kampas rem asbestos hanya memiliki satu jenis serat yaitu asbes yang menimbulkan karsinogenik. Kampas rem yang terbuat dari asbestos hanya dapat bertahan sampai 200 oC. Berbeda dengan kampas rem asbestos, kampas rem non asbestos biasanya terdiri dari 4 s/d 5 macam serat sehingga dapat bertahan hingga 300 oC
Penelitian kali ini menggunakan serat kelapa – epoxy – friction modifier berupa alumina dan magensium oksida untuk mendapatkan material alternatif kampas rem sepeda motor. Penelitian dilakukan mulai dari simulasi pada suhu pengereman menggunakan software finite element, pengujian kekerasan dan laju keausan kampas rem komposit dan kampas rem pembanding menggunakan metode Rockwell dan Reciprocating wear tester.
Dari hasil simulasi didapatkan bahwa komposisi 1, komposisi 2 dan komposisi 3 telah aman pada suhu pengereman dan nilai deformasi terkecil adalah 0.32013 mm ada pada komposisi 2 dan equivalent stress yang terkecil 54.4 MPa ada pada komposisi 1. Berdasarkan pengujian kekerasan didapatkan komposisi 2 memiliki kekerasan tertinggi 44.1 HRB, tetapi belum dapat mendekati kekerasan kampas rem pembanding yang memiliki nilai kekerasan 50.4 HRB. Berdasarkan hasil uji keausan didapatkan komposisi 1 dan 2 mempunyai laju keausan spesifik yang lebih kecil dibanding kampas rem pembanding, Komposisi 1 dengan nilai terkecil sebesar 1,73x10-7 cm3/Nm sedangkan kampas rem pembanding mempunyai laju keausan spesifik sebesar 3,1x 10-7 cm3/Nm. Didapatkan pula koefisien gesek dari masing-masing komposisi dan koefisien gesek terbesar adalah pada komposisi 1 dengan nilai 0.46, lebih besar dibanding kampas rem yaitu 0.40.
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Brake pads is an important component in braking system that worked for slowing down or even stop the vehicle. Generally, there are two basic components of brake pads, asbestos and non-asbestos. Asbestos brake pads only has asbestos itself as the fiber, though asbestos is carcinogenic. Asbestos brake pads can only be maintained in up to 200 oC. As for the non-asbestos brake pads, it has 4 to 5 types of fiber and can be maintained in up to 300 oC.
This research used coconut fiber – epoxy – friction modifier in a form of alumina and magnesium oxide to obtain motorbike brake pads alternative material. This research started with simulation on braking temperature using finite element software, hardness and wear rate test on composite and comparator brake pads using Rockwell and Reciprocating wear tester as the method.
The results of the simulation are composition 1, composition 2 and composition 3 already safe in braking temperature with smallest deformation value is 0.32013 mm in composition 2 and smallest equivalent stress is 54.4 MPa in composition 1. As of the results of hardness test are composition 2 as the highest value is 44.1 HRB, but cannot closed to comparator brake pads hardness value that is 50.4 HRB.
Based on wear rate test, the results are composition 1 and composition 2 have smaller specific wear rate than comparator brake pads, with composition 1 as the smallest wear rate that is 1,73x10-7 cm3/Nm as of comparator brake pads wear rate is 3,1x 10-7 cm3/Nm. From the test it also found that the coefficient of friction from each composition and the biggest coefficient of friction is composition 1 that is 0.46, bigger than comparator brake pads that is 0.40.

Item Type:	Thesis (Undergraduate)
Additional Information:	RSM 629.246 Saf k
Uncontrolled Keywords:	kampas rem, kekerasan, laju keausan, serat kelapa – epoxy – friction modifier
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:	Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	SHOFIA DEWI SAFITRI
Date Deposited:	30 Jan 2018 03:58
Last Modified:	30 Jan 2018 03:58
URI:	http://repository.its.ac.id/id/eprint/45742

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