Izihloko mayelana nefomula yencazelo kanye nezinhlobo zamagagasi omshini
INCAZELO YAMAGAZI OKUSEBENZA
Uma ubamba uhlangothi olulodwa lwentambo bese uyidlidliza phezulu naphansi, kuvela igagasi elisakazeka eduze kwentambo. Noma uma uphonsa itshe emanzini, amagagasi azovela ebusweni bamanzi. Intambo namanzi kuyashintshashintsha kuphela phezulu naphansi, hhayi ukuhamba ngokuvundlile. Amagagasi entanjeni namagagasi emanzini ayizibonelo zamagagasi omshini.
Amagagasi omshini amagagasi ahamba nge-medium. Izibonelo zamagagasi omshini amagagasi ezintanjeni noma ezintanjeni, amagagasi emanzini, amagagasi omsindo asakazeka emoyeni, kanye namagagasi okuzamazama komhlaba asakazeka emhlabathini. Amagagasi angahamba amabanga amade kuyilapho i-medium amagagasi anyakaza ngayo iseduze nendawo yokulingana.
IZINHLOBO ZAMAGAGASI OKUSEBENZA
Ngokusekelwe ekubunjweni kwawo, amaza omshini aqukethe izinhlobo ezimbili, okungukuthi amaza ajikelezayo, kanye namaza ajikelezayo.
Amagagasi ashintshashintshayo amagagasi ayenzeka lapho isiqondiso sokunyakaza kwamagagasi siqonde ngqo esiqondisweni sokunyakaza kwezinhlayiya. Isibonelo, amagagasi entanjeni, amagagasi emanzini.
Uma amagagasi entambo ehamba ngendlela evundlile, izinhlayiya ezintanjeni zihamba ngendlela evundlile. Ngokufanayo, uma amagagasi amanzi ehamba ngendlela evundlile, izinhlayiya zamanzi zihamba ngendlela evundlile.
Amagagasi amade angamagagasi ayenzeka lapho isiqondiso sokunyakaza kwamagagasi sihambisana nesiqondiso sokunyakaza kwezinhlayiya. Isibonelo, amagagasi eziphethwini, kanye namagagasi omsindo emoyeni.
Uma igagasi entwasahlobo lihamba ngendlela evundlile, khona-ke ubuningi kanye nobunzima obakheka entwasahlobo nakho kuyahamba kuya emuva naphambili ngendlela evundlile.
Ngokufanayo, uma igagasi lomsindo lihamba liye ohlangothini oluqondile, umoya uyafinyela futhi welule uye ohlangothini oluqondile.
Amagagasi okuzamazama komhlaba aqukethe amagagasi anqamulayo (abizwa ngokuthi amagagasi okusika) kanye namagagasi ande (abizwa ngokuthi amagagasi okucindezela).
IFOMULA YEGAGAZI LOKUSEBENZA
Ifomula Yamagagasi Aguquguqukayo
Kusetshenziswa amanani amaningana ukuchaza amaza, okungukuthi i-Amplitude (A), i-Vacation (f), i-Period (T), kanye ne-Wave speed (v).
I-amplitude yi-maximum deviation. Inkathi yi-time interval yamagagasi/izigodi ezimbili ezilandelanayo ezidlula endaweni efanayo esikhaleni. I-frequency yi-number of peaks/izigodi ezidlula endaweni efanayo ngeyunithi yesikhathi.
Amagagasi omshini ahamba ngesivinini esithile. Ifomula yesivinini samagagasi yile:
v = λ f = λ/T
v = isivinini segagasi, λ = ubude besikhathi, f = imvamisa, T = isikhathi.
Iyunithi yamazwe ngamazwe ye-wavelength ingamamitha, iyunithi yemvamisa i-Hertz, kanti iyunithi yesikhathi ingamasekhondi. Iyunithi yejubane lamagagasi ingamamitha/isekhondi.
Inkinga Yesampula:
Igagasi eliphambeneyo entanjeni linemvamisa engu-2 Hz (ama-wave crests amabili adlula endaweni efanayo emkhathini, isekhondi eli-1) futhi linobude obungamamitha ama-3 (ibanga eliphakathi kwama-crests amabili aseduze lingamamitha ama-2). Liyini ijubane lamagagasi?
Kwaziwa:
Imvamisa (f) = 2 Hz
Ubude begagasi (λ) = amamitha angu-3
Okufunwayo: Isivinini (v)
Isixazululo:
v = λ f = 3 (2) = 6 m/s
Ijubane legagasi eliphambene endaweni ephakathi nendawo lincike ohlotsheni lwendawo ephakathi lapho lidlula khona. Isibonelo, ijubane legagasi entanjeni (intambo, intambo, ucingo) lincike ekucindezelekeni kwentambo (FT) kanye nobuningi bentambo (isisindo sentambo ngobude beyunithi).
Inkinga Yesampula:
Igagasi linobude obuyimitha eli-1 futhi lisakazeka entanjeni enobude obungamamitha ayi-100 futhi inesisindo esingu-2 kg. Ukuqina entanjeni kungu-200 N. Lingakanani ijubane lamagagasi entanjeni?
Kwaziwa:
Ubude begagasi (λ) = 1 imitha
Ubude bentambo (L) = amamitha ayi-100
Isisindo sentambo (m) = 2 kg
Ukucindezeleka entanjeni (T) = 200 N
Okufunwayo: Ijubane lamagagasi entanjeni (v)
Isixazululo:
Ifomula Yegagasi Elide
Ijubane lamagagasi amade endaweni ephakathi nendawo lincike ohlotsheni lwendawo ephakathi lapho idlula khona. Ijubane lamagagasi amade asakazeka ezindongeni eziqinile libalwa kusetshenziswa ifomula:
v = ijubane lamagagasi, E = i-modulus ye-elastic kaYoung, ρ = ukuminyana
Inkinga Yesampula:
Bala ijubane legagasi lomsindo elihamba ngesitimela sensimbi. I-modulus ye-Young Steel yokunwebeka = 2 x 10 11 N/m 2 kanye nobuningi bensimbi = 7.8 x 10 3 kg/m 3
Kwaziwa:
Imodulus enwebekayo yeNsimbi (E) = 2 x 10 11 N/m 2
Ubuningi bensimbi (ρ) = 7.8 x 10 3 kg/m 3
Okufunwayo: Isivinini samaza omsindo
Isixazululo:
Ijubane lamagagasi ajikelezayo asakazeka koketshezi kanye namagesi libalwa kusetshenziswa ifomula: v = ijubane lamagagasi, B = i-bulk modulus, ρ = ukuminyana
Inkinga Yesampula:
Lingakanani ijubane lamagagasi ajikelezayo uma ehamba emanzini?
I-Modulus yamanzi amaningi (B) = 2 x 10 9 N/m 2
Ubuningi bamanzi (ρ) = 1000 kg/ m3
Isixazululo:
Isivinini segagasi elide lapho lisakazeka emanzini:
