Air kukana mphamvu - ndipo popanda mwa njira iliyonse

Ndife amakonda kukhala pakati pa mlengalenga, nthawi zambiri samapereka tcheru kwa izo. Apa ndi koposa zonse, kugwiritsa ntchito mavuto luso, yankho limene poyamba iyiwalika kuti pali mphamvu ya kukana mpweya.

Izo zikutikumbutsa chache mwa iliyonse kanthu. Ngakhale tidzapita ndi galimoto, ngakhale zouluka ndege, ngakhale ngati ife kumuponya mwala. Kotero yesetsani kumvetsa chimene mphamvu ya kukana mpweya zitsanzo za milandu yosavuta.

Kodi munaganizapo kuti n'chifukwa chiyani magalimoto ndi mawonekedwe streamlined ndi lathyathyathya pamwamba? Koma chiri makamaka bwino kwambiri. Air kukana mphamvu wapangidwa ndi zedi awiri - kulimbikira pamwamba mikangano ya thupi ndi mawonekedwe a kulimbikira thupi. Pofuna kuchepetsa mphamvu mikangano ndi kukwaniritsa kuchepetsa monyanyira ndi roughness mbali lakunja kwa kupanga galimoto ndi zina magalimoto iliyonse.

Kuti tichite zimenezi, iwo primed, papezeka, opukutidwa ndi lacquered. workpieces kotero kumatsogolera chakuti mpweya kukana kuchita galimoto yafupika, liwiro galimoto ndi chinawonjezeka ndi mafuta yafupika pamene galimoto. Kukhalapo kwa mphamvu kukana chifukwa chakuti pamene galimoto ikuyenda mpweya ali wothinikizidwa ndi pamaso izo amalenga malo m'dera la kuthamanga, kenako, motero, m'dera kuyamwa.

Tikumbukenso kuti pa mkulu makina liwiro chopereka chachikulu mu mawonekedwe a kukana kupanga magalimoto. Mphamvu kukana mawerengedwe chilinganizo chimene pansipa, limatchula mfundo imene iwo amadalira.

kukana Mphamvu = Cx * S * V2 * r Mukhoza / 2

kumene S - kutsogolo ziyerekezo m'dera za makina;

Cx - koyefishienti kutenga nkhani mpweya kukana;

V - mathamangidwe;

r Mukhoza - mpweya osalimba.

Monga mophweka kuchokera pamwamba chilinganizo, koma mphamvu ya kukana sikudalira misa galimoto. Chopereka waukulu wapangidwa ndi zigawo ziwiri - lalikulu la liwiro ndi mawonekedwe a galimoto. Ie ndi kuwonjezeka mathamangidwe wa kawiri kanayi kuonjezera kukana. Chabwino mtanda yachigawo view galimoto ali ndi chikoka kwambiri. Galimoto adzakhala streamlined, m'munsi kukana mpweya.

Ndipo mu njira pali chizindikiro chabe umafuna kubweretsa izo kwa tcheru - osalimba mpweya. Koma mmene iye kale kwambiri kutchulidwa ndege. Amadziwika kuti ndi kuwonjezeka okwera mpweya kachulukidwe amachepetsa. Kotero adzakhala ndichepe mphamvu ya kukana wake. liwiro ndi mawonekedwe - koma zinthu zomwezo adzapitiriza bwanji ndege pa mtengo wa kukana.

No zochepa chidwi ndi mbiri ya kuphunzira mpweya chikoka pa olondola. Ntchito za chikhalidwe zimenezi zinachitika kale, kufotokozera woyamba ikukhudzana bwanji ndi 1742. Zatsopano kumeneku kunachitika m'mayiko osiyanasiyana ndi mawonekedwe osiyana zipolopolo ndi projectiles. Chifukwa cha kafukufuku mulingo woyenera maonekedwe a zipolopolo anatsimikiza ndi chiŵerengero cha mutu ndi mchira ziwalo pa tebulo tinapangidwa ballistic khalidwe chipolopolo mu ndege.

Kenako maphunziro anali kuchitidwa monga chipolopolo kwa liwiro lake, anapitiriza kukhala ankachita maonekedwe a zipolopolo, komanso bwino njira ya kafukufuku. Ife anayamba zitsanzo masamu a koyefishienti ballistic - wapadera masamu chida analengedwa. Iye akusonyeza chiŵerengero cha mphamvu kuukoka kuuluka bwino potsatira njira ndi mphamvu inertial kuchita chipolopolo lapansi.

Nkhaniyi ikufotokoza mphamvu ndi mpweya kukana, chilinganizo wapatsidwa amene amalola kudziwa kukula ndi mmene chikoka cha zinthu zosiyanasiyana pa ukulu wa kukana, zotsatira zake imatengedwa zosiyanasiyana za sayansi.