I-FRP Ikhuphula Kanjani I-Pole Vaulting Kuya Ezindaweni Ezintsha Eziphakeme

Ifiziksi engemuva komcimbi we-pole vault ibandakanya ukusebenzisana okuyinkimbinkimbi kwamandla womsubathi kanye nokuhlehla kwebhola. Njengoba i-jumper yehla ngomzila wezindiza ngesivinini esiphezulu, batshala isigxobo esivumelana nezimo ebhokisini, iqondisa kabusha isivinini esivundlile siye phezulu njengoba isigxobo sigoba. Ukuthatha isikhathi salokhu "kusuka" ngendlela efanele kubalulekile—kusesekuseni kakhulu, futhi isigxobo ngeke sinikeze ukuphakamisa okwanele; sekwephuzile kakhulu, futhi amandla anwebekayo agciniwe ayashabalala esikhundleni sokuthi umsubathi abheke phezulu.

Njengoba onjiniyela belwela ukunqamula izithiyo zokusebenza, bajula bajula ezicini ezingalinganiseka njengokuqina kwesigxobo, isikhathi sokuhlehla, kanye nokubuya kwamandla. Ukusebenzisana phakathi kwesu lomsubathi negiya lakhe kuveza inselele yobunjiniyela ebabazekayo. Ucwaningo olubanzi lwesayensi nokuhlola kungena ekuthuthukiseni izigxobo ze-high jump ukuze kudluliselwe amandla ngendlela ephumelelayo ngangokunokwenzeka.

Onjiniyela balwela ukuthola ibhalansi efanelekile yamandla, ukuguquguquka, ukuqina, kanye nokukhanya kwezinto zesigxobo. I-Fiberglass reinforced plastic (FRP) iyikhandidethi elihle kakhulu, elihlangabezana nalezi zidingo ngempumelelo. Le nhlanganisela ihlanganisa i-glass fiber ukuze ibe namandla nokuqina nge-plastic polymer matrix, okuletha ukuguquguquka. Umphumela uba impahla eqinile kodwa enwebekayo evuthiwe ukuze ithuthukiswe.

I-FRP inikeza izilinganiso eziphakeme kakhulu zamandla nesisindo kunezinto zangaphambilini ezifana nokhuni, uqalo, kanye nokuhluka kwasekuqaleni kwe-fiberglass. Imicu yengilazi ye-macrostructure inikeza amandla, kuyilapho i-polymer matrix yepulasitiki isakaza amandla omthwalo kuwo wonke. I-FRP ingagoba futhi yelule ukuze igcine amandla amakhulu ngaphambi kokuhlehla ngokushesha ngokwanele ukuze kubuye amandla amaningi.

Ukuqina kungenye inzuzo-izigxobo ze-FRP zigcina ukusebenza okungaguquki ngaphezu kwezinkulungwane zemijikelezo yokugoba. Bagcina kangcono ukuguquguquka okushuniwe kanye nokuqina okwenzelwe abasubathi abathile phakathi neminyaka yokuqeqeshwa nemiqhudelwano. Ukulungiswa okuqhubekayo kufaka phakathi ama-resin epulasitiki athuthukisiwe kanye nokunemba kwe-fiber orientation.

Amandla akhona okuthi i-FRP ilethe izigxobo ezinezinhlanganisela ezingakaze zibonwe zamandla, ukunwebeka, ukuqina, kanye nesisindo esincane. Le bhalansi ingase inikeze imingcele yokuphepha efiswa onjiniyela kanye nokusabela okwenziwe ngendlela oyifisayo okuvumela ama-vaulters asezingeni eliphezulu ukuthi anyuke nakakhulu. Intuthuko kwezesayensi yezinto ezibonakalayo kanye nobunjiniyela be-nano bamatrics abayinhlanganisela abaphezulu kuveza ikusasa elijabulisayo lepulasitiki eqiniswe nge-fiberglass enkundleni ye-pole vault.