komposiitmaterjalid jalgrataste ehituses.
komposiitmaterjalid jalgrataste ehituses.
Vaja koolis teha referaat komposiitmaterjalidest jalgrataste tootmisest. Ise olen leidnud materjali monokok süsiplastist jalgratastest, aga seda on vähevõitu. Oleks ääretult tänulik, kui keegi aitaks vajaliku materjali leidmisega(eesti, vene või inglise keeles).
Re: komposiitmaterjalid jalgrataste ehituses.
L. Castejón1, A. Miravete1, J. Ullod1 and E. Larrodé1
(1) Department of Mechanical Engineering, University of Zaragoza, cl María de Luna, 3, 50.015 Zaragoza, Spain
Received: 16 March 1994 Accepted: 15 May 1994
Abstract The present paper shows the way in which a monocoque frame of a mountain bicycle made of carbon fiber and kevlar laminate, a poliurethane foam core and different metallic stiffeners were analyzed. The study was performed in two parts, namely, a first part in which the bicycle was tested considering several static and dynamic cases and a second part carried out by using the F.E.M., from which vibration frequencies and modes were obtained, as well as the foam optimization to be used in the core. It was also possible to compare the results obtained in both parts.
(1) Department of Mechanical Engineering, University of Zaragoza, cl María de Luna, 3, 50.015 Zaragoza, Spain
Received: 16 March 1994 Accepted: 15 May 1994
Abstract The present paper shows the way in which a monocoque frame of a mountain bicycle made of carbon fiber and kevlar laminate, a poliurethane foam core and different metallic stiffeners were analyzed. The study was performed in two parts, namely, a first part in which the bicycle was tested considering several static and dynamic cases and a second part carried out by using the F.E.M., from which vibration frequencies and modes were obtained, as well as the foam optimization to be used in the core. It was also possible to compare the results obtained in both parts.
Tööpaeval, kui ilm ilus, sõidan 5 km. Puhkepäeval olen korduvalt teinud lausa 7 km.
Re: komposiitmaterjalid jalgrataste ehituses.
Äkki oskate rääkida pikemalt süsinikkiud raamiga jalgrataste positiivsetest ja negatiivsetest külgedest?
Re: komposiitmaterjalid jalgrataste ehituses.
Wiki on suht täis erinevat materjali selle kohta:
http://en.wikipedia.org/wiki/Carbon_fib ... ed_polymer
http://en.wikipedia.org/wiki/Composite_materials
Uuri nende valmistamise ja eeliste kohta ning siis vii teema ratta raamide/velgede peale, sest pole vahet, mida sa nendest materjalidest valmistad, kui saad piisava tugevusega lõpptoote.
TTÜ lehelt võid ka otsida, sealt leiab ka mingeid loengumaterjale jne.
nt.
http://www.ene.ttu.ee/leonardo/materjal ... rjalid.pdf
http://www.ttu.ee/public/m/materjaliteh ... siidid.ppt
http://en.wikipedia.org/wiki/Carbon_fib ... ed_polymer
http://en.wikipedia.org/wiki/Composite_materials
Uuri nende valmistamise ja eeliste kohta ning siis vii teema ratta raamide/velgede peale, sest pole vahet, mida sa nendest materjalidest valmistad, kui saad piisava tugevusega lõpptoote.
TTÜ lehelt võid ka otsida, sealt leiab ka mingeid loengumaterjale jne.
nt.
http://www.ene.ttu.ee/leonardo/materjal ... rjalid.pdf
http://www.ttu.ee/public/m/materjaliteh ... siidid.ppt
- pärnu rattur
- Rattur
- Postitusi: 551
- Liitunud: 14. 08. 2009. 18:29
Re: komposiitmaterjalid jalgrataste ehituses.
Meil koolis näiteks Vikipeedia materjali ei aksepteerita väga, kuna sinna võib igaüks kirjutada. Vaata Vikist hoopis viiteid raamatutele.
Ärge näkku lööge! [/OT]