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Kamoo FRP e Phahamisang Pole Vaulting ho ea ho New Heights

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Kamoo FRP e Phahamisang Pole Vaulting ho ea ho New Heights

2024-07-23

Fisiks e ka morao ho ketsahalo ea "polevault" e kenyelletsa tšebelisano e rarahaneng ea matla a baatlelete le ho thella ha lipalo. Ha jumper e matha ka lebelo le phahameng ho theosa le tsela ea lifofane, e lema palo e tenyetsehang ka har'a lebokose, e lebisa lebelo le rapameng ho ea holimo ha palo e kobeha. Ho nka nako ena ea "ho tloha" ka nepo ke ea bohlokoa - esale pele haholo, 'me palo e ke ke ea fana ka phahamiso e lekaneng; e se e le morao haholo, 'me matla a bolokiloeng a rekotla aa fela ho e-na le ho etsa hore moatlelete a lebe leholimong.


Ha lienjineri li ntse li ikitlaelletsa ho tlola litšitiso tsa ts'ebetso, li kenella ka botebo likarolong tse ka lekanyetsoang joalo ka ho satalla ha palo, nako ea ho khutla, le ho khutla ha matla. Tšebelisano pakeng tsa mokhoa oa moatlelete le lisebelisoa tsa bona e hlahisa phephetso e tsotehang ea boenjiniere. Patlisiso e batsi ea mahlale le liteko li kena molemong oa ho ntlafatsa li-high jump poles ho fetisetsa matla ka nepo kamoo ho ka khonehang.


Baenjineri ba ikitlaelletsa ho fumana tekanyo e nepahetseng ea matla, ho tenyetseha, ho tšoarella, le bobebe bakeng sa thepa ea lipalo. Fiberglass reinforced plastic (FRP) ke mokhethoa ea khabane, ea fihlelang litlhoko tsena ka katleho. Motsoako ona o kopanya fiber ea khalase bakeng sa matla le ho satalla ka polasetiki ea polymer matrix, e tlisang maemo a bonolo. Sephetho ke ntho e thata empa e butsoitse e butsoitseng bakeng sa ntlafatso.


FRP e fana ka litekanyo tse phahameng haholo tsa boima ba 'mele ho feta lisebelisoa tse fetileng tse kang lehong, bamboo le mefuta ea pele ea fiberglass. Likhoele tsa khalase tsa macrostructure li fana ka matla, ha polasetiki ea polymer matrix e abela matla a boima ho tsona. FRP e ka inama le ho otlolla ho boloka matla a maholo pele e khutla kapele ho lekana bakeng sa ho khutla ha matla.


Ho tšoarella ke molemo o mong - lipalo tsa FRP li boloka ts'ebetso e tsitsitseng ho feta likete tsa mekoloko ea bend. Ba boloka ho feto-fetoha ha maemo le ho satalla ho etselitsoeng baatlelete ba itseng ka lilemo tsa boikoetliso le litlholisano. Lintlafatso tse tsoelang pele li kenyelletsa li-resin tsa polasetiki tse tsoetseng pele le li-fiber tse nepahetseng.


Monyetla o teng oa hore FRP e fane ka lipalo tse nang le metsoako e sa lebelloang ea matla, elasticity, robustness le bobebe. Tekanyo ena e ka fana ka litakatso tsa baenjiniere ba marang-rang hammoho le karabelo e ikhethileng e lumellang li-vaulters tsa maemo a holimo ho nyoloha le ho feta. Tsoelo-pele ea mahlale a lintho tse bonahalang le boenjiniere ba nano ba materiki a phahameng a kopantsoeng a hlahisa bokamoso bo monate ba polasetiki e matlafalitsoeng ka fiberglass lebaleng la bolo ea maoto.