Saamaynta dabaysha ayaa aad muhiim ugu ah doorashada saxda ahawoodda dareenka unugga loadiyo go'aaminta rakibaadda saxda ah ee isticmaalka gudahacodsiyada dibadda. Falanqaynta, waa in loo maleeyaa in dabayshu (oo ay ka dhici karto) jihada toosan.
Jaantuskan ayaa muujinaya saamaynta dabayshu ku leedahay haanta taagan. Ogsoonow in aysan jirin kaliya qaybinta cadaadiska dhinaca dabaysha, laakiin sidoo kale waxaa jira qaybinta "nuugista" dhinaca bidixda.
Ciidamada labada dhinac ee taangigu waa siman yihiin cabbir ahaan laakiin ka soo horjeeda jihada sidaas darteed wax saameyn ah kuma laha xasiloonida guud ee markabka.
Xawaaraha dabaysha
Xawaaraha ugu badan ee dabayshu waxay ku xidhan tahay goobta juqraafiyeed, joogga iyo xaaladaha deegaanka (dhismayaasha, meelaha furan, badda, iwm.). Machadka saadaasha hawada ee qaranka ayaa bixin kara tirakoobyo badan si loo go'aamiyo sida xawaaraha dabaysha loo tixgelinayo.
Xisaabi awoodda dabaysha
Rakibaadda waxaa inta badan saameeya xoogag siman, oo u dhaqma jihada dabaysha. Ciidamadan waxaa lagu xisaabin karaa:
F = 0.63 * cd * A * v2
waa halkan:
cd = isugaynta jiidida, dhululubo toosan, isugaynta jiididu waxay la mid tahay 0.8
A = qayb qaawan, oo le'eg dhererka weelka * dhexroorka weelka (m2)
h = dhererka weelka (m)
d = godka markabka (m)
v = xawaaraha dabaysha (m/s)
F = Xoog ay dhaliso dabayshu (N)
Sidaa darteed, weelka cylindrical toosan, caanaha soo socda ayaa loo isticmaali karaa:
F = 0.5 * A * v2 = 0.5 * h * d * v2
Gabagabadii
• Rakibaadda waa in ay ka hortagtaa rogid.
• Qodobbada dabaysha waa in la tixgeliyaa marka la dooranayo awoodda dynamometer.
• Maadaama aysan dabayshu had iyo jeer u dhicin jihada toosan, qaybta toosan waxay keeni kartaa khaladaad cabbirka iyadoo ay ugu wacan tahay isbeddellada eber ee aan sabab lahayn. Khaladaadka ka weyn 1% miisaanka saafiga ah ayaa suurtagal ah kaliya dabaylaha aadka u xoogan >7 Beaufort.
Saamaynta Ku Saabsan Waxqabadka Unugyada Xamuulka iyo Rakibaadda
Saamaynta ay dabayshu ku leedahay walxaha lagu cabbiro xoogga ayaa ka duwan saamaynta ay ku leedahay maraakiibta. Awoodda dabayshu waxay keentaa daqiiqad gadoon, taas oo ay ka dhimi doonto wakhtiga falcelinta ee unugga rarka.
Fl = xoogga dareemaha cadaadiska
Fw = xoog dabaysha awgeed
a = masaafada u dhaxaysa unugyada rarka
F*b = Fw*a
Fw = (F * b) ∕a
Waqtiga boostada: Oct-11-2023
