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2019, vol. 69, br. 2, str. 36-42
Elastični element sa parom simetričnih unakrsnih šarnira
Vojnotehnički institut - VTI, Beograd

e-adresamarija.samardzic@vti.vs.rs
Projekat:
TR 36050

Ključne reči: šarnir; unakrsni šarnir; oscilacije; aerotunel; derivativi stabilnosti
Sažetak
U radu je opisan elastični element uređaja sa prinudnim oscilacijama koji se koristi u dinamičkim merenjima u aerotunelu T38. Elastični element prihvata velika aerodinamička opterećenja i omogućava oscilovanje modela u toku dinamičkog aerotunelskog eksperimenta. Projektovanje ovakvog elementa je veoma složen proces usled ograničenog raspoloživog prostora unutar modela. Elastični element uređaja za dinamička merenja u aerotunelu T-38 sastoji se od para simetričnih unakrsnih šarnira. Prikazana su dva tipa unakrsnih šarnira: unakrsni šarnir sa konstantnim poprečnim presekom lamela i unakrsni šarnir sa promenljivim poprečnim presekom lamela. Analiza opterećenja unakrsnih šarnira pokazala je da lamele sa promenljivim poprečnim presekom mnogo bolje odgovaraju strogim zahtevima dinamičkih aerotunelskih eksperimenata.
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O članku

jezik rada: engleski
vrsta rada: neklasifikovan
DOI: 10.5937/str1902036S
objavljen u SCIndeksu: 14.02.2020.
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