Kupindika Popanda Kuthyoka: Luso Lopanga Mafelemu A Umbrella Osinthika (1)

Pankhani yodziteteza ku mvula, pali zinthu zochepa chabe zimene zakhala zikugwira ntchito kwa nthawi yaitali ngati ambulera.Kwa zaka zambiri, kachipangizo kakang'ono kameneka kanatiteteza ku mvula, chipale chofewa, ndi dzuwa, n'kumatiteteza ku mvula, chipale chofewa, ndi dzuwa.Koma kumbuyo kwa kuphweka kwa ambulera pali dziko lochititsa chidwi la uinjiniya ndi kapangidwe kake, makamaka pankhani ya chimango.M'nkhaniyi, tiwona luso lopanga mafelemu osinthika a maambulera, ukadaulo kumbuyo kwawo, komanso momwe amakhudzira moyo wathu watsiku ndi tsiku.

Kusintha kwa Mafelemu a Umbrella

Maambulera ali ndi mbiri yakale komanso yodziwika bwino, kuyambira zaka masauzande ambiri kumadera akale monga Mesopotamia, Egypt, ndi China.Komabe, m’zaka za m’ma 1700 ndi pamene ambulera yopinda yamakono, monga momwe tikudziwira masiku ano, inayamba kuumbika.Kupanga mafelemu a maambulera kwabwera patali kuyambira pamenepo, kusinthika kuchokera ku zolimba komanso zolemetsa kupita ku zopepuka komanso zosinthika.

Cholinga chachikulu cha chimango chilichonse cha ambulera ndicho kuchirikiza dengalo ndi kulisunga lolimba, kupereka chishango cholimba polimbana ndi zinthu.Komabe, kusinthasintha kwakhala kofunika kwambiri pakupanga maambulera, makamaka pamene tikukumana ndi nyengo zosayembekezereka komanso mphepo yamkuntho.Mafelemu achikale opangidwa ndi matabwa kapena chitsulo nthawi zambiri sankatha kupindika ndi kusinthasintha, zomwe zimawapangitsa kukhala osatetezeka kuwonongeka ndi mphepo yamkuntho kapena mvula yamphamvu.

Zinthu Zofunika

Chimodzi mwa zinthu zofunika kwambiri popanga mafelemu a maambulera osinthika ndi kusankha kwa zipangizo.Maambulera amakono amagwiritsa ntchito zinthu monga fiberglass, aluminiyamu, ndi kaboni fiber pamafelemu awo.Zida izi zimapereka kuphatikiza koyenera kwa mphamvu ndi kusinthasintha.

Fiberglass, mwachitsanzo, ndi chisankho chodziwika bwino chifukwa cha mawonekedwe ake opepuka komanso kusinthasintha kodabwitsa.Ikakakamizidwa, magalasi a fiberglass amatha kupindika ndikuyamwa mphamvu osasweka, ndikupangitsa kukhala chisankho chabwino kwambiri panthiti za maambulera.Aluminiyamu ndi kaboni fiber zimayamikiridwanso chifukwa cha zopepuka komanso kuthekera kopirira kupindika popanda kupunduka kosatha.