Süsinikkiudkomposiitmaterjali rakendamine motokrossis
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Kuupäev
2026
Kättesaadavus
09.09.2026
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Käesoleva lõputöö eesmärk oli välja selgitada süsinikkiudkomposiitmaterjali rakendamise potentsiaal motokrossis ning hinnata, kas antud materjali on võimalik kasutada plast- ja metallsulamist detailide asendamiseks. Töö teoreetilises osas anti ülevaade komposiitmaterjalide omadustest, süsinikkiu olemusest, töötlusviisidest, järeltöötlemisest ning ohututest töövõtetest. Praktilises osas valmistati Yamaha YZ250F siduriheebel, Yamaha YZ450R akukast ning Yamaha YZ250F tagumine porilaud ja numbrilaud. Detailide valmistamisel kasutati erinevaid töövõtteid, sealhulgas käsiladumist, pressvormi ja vaakuminfusiooni. Katsetuste põhjal andis kõige parema tulemuse vaakuminfusioon, mille abil saavutati hea pinnakvaliteet ja tugev detail. Valmistatud akukasti katsetati võistlusmasinal ligikaudu 12 tunni ulatuses ning detail pidas kasutustingimustele vastu. Töö tulemusena selgus, et süsinikkiudkomposiitmaterjalidel on motokrossis praktiline kasutuspotentsiaal, eriti detailides, kus on oluline väike mass, tugevus, kulumiskindlus ja korrosioonikindlus. Samas tuleb arvestada, et komposiitdetailide valmistamine on ajamahukas ning nõuab korralikku ettevalmistust ja täpseid töövõtteid.
The aim of this thesis was to determine the potential of applying carbon fibre composite materials in motocross and to evaluate whether they can be used to replace parts made of plastic and metal materials. The theoretical part of the thesis gives an overview of the properties of composite materials, the nature of carbon fibre, manufacturing methods, post-processing and safe working practices. In the practical part, a Yamaha YZ250F clutch lever, a Yamaha YZ450R battery box, and a Yamaha YZ250F rear fender and number plate were manufactured. Different manufacturing methods were used, including hand lay-up, compression moulding and vacuum infusion. Based on the tests, vacuum infusion gave the best result, providing good surface quality and a strong laminate. The manufactured battery box was tested on a racing machine for approximately 12 hours and the part withstood the operating conditions. As a result of the thesis, it was found that carbon fibre composite materials have practical application potential in motocross, especially in parts where low weight, strength, wear resistance and corrosion resistance are important. At the same time, it must be considered that manufacturing composite parts is time-consuming and requires proper preparation and precise working methods.
The aim of this thesis was to determine the potential of applying carbon fibre composite materials in motocross and to evaluate whether they can be used to replace parts made of plastic and metal materials. The theoretical part of the thesis gives an overview of the properties of composite materials, the nature of carbon fibre, manufacturing methods, post-processing and safe working practices. In the practical part, a Yamaha YZ250F clutch lever, a Yamaha YZ450R battery box, and a Yamaha YZ250F rear fender and number plate were manufactured. Different manufacturing methods were used, including hand lay-up, compression moulding and vacuum infusion. Based on the tests, vacuum infusion gave the best result, providing good surface quality and a strong laminate. The manufactured battery box was tested on a racing machine for approximately 12 hours and the part withstood the operating conditions. As a result of the thesis, it was found that carbon fibre composite materials have practical application potential in motocross, especially in parts where low weight, strength, wear resistance and corrosion resistance are important. At the same time, it must be considered that manufacturing composite parts is time-consuming and requires proper preparation and precise working methods.
Kirjeldus
Rakenduskõrgharidusõppe lõputöö
Tehnotroonika õppekaval
Märksõnad
lõputööd, komposiitmaterjal, süsinikkiud, motokross