Kupindika Popanda Kusweka: Luso Lopanga Mafelemu Osinthasintha a Ambulera (1)

Ponena za kudziteteza ku nyengo, zinthu zochepa chabe zomwe zakhala zikupambana nthawi yayitali monga ambulera. Kwa zaka mazana ambiri, chipangizo chodzichepetsachi chatiteteza ku mvula, chipale chofewa, ndi dzuwa, zomwe zimatipatsa malo othawirako ku zinthu zachilengedwe zomwe zimafuna. Koma kumbuyo kwa ambulera yosavuta kuli dziko losangalatsa la uinjiniya ndi kapangidwe, makamaka pankhani ya chimango. M'nkhaniyi, tifufuza luso lopanga mafelemu osinthasintha a ambulera, ukadaulo womwe uli mkati mwake, komanso momwe amakhudzira miyoyo yathu ya tsiku ndi tsiku.

Kusintha kwa Mafelemu a Umbrella

Maambulera ali ndi mbiri yayitali komanso yosangalatsa, kuyambira zaka masauzande ambiri ku zitukuko zakale monga Mesopotamia, Egypt, ndi China. Komabe, sizinali mpaka m'zaka za m'ma 1700 pomwe ambulera yamakono yopindika, monga momwe timaidziwira masiku ano, inayamba kupangidwa. Kukula kwa mafelemu a ambulera kwapita patsogolo kwambiri kuyambira pamenepo, kuyambira pa nyumba zolimba komanso zovuta kupita ku mapangidwe opepuka komanso osinthasintha.

Cholinga chachikulu cha chimango chilichonse cha ambulera ndikuthandizira denga ndikulisunga lolimba, kupereka chishango cholimba ku nyengo. Komabe, kusinthasintha kwakhala kofunikira kwambiri pakupanga maambulera, makamaka pamene tikukumana ndi nyengo yosayembekezereka komanso mphepo yamphamvu. Mafelemu a ambulera achikhalidwe opangidwa ndi matabwa kapena chitsulo nthawi zambiri sankatha kupindika ndi kupindika, zomwe zimapangitsa kuti awonongeke mosavuta ndi mphepo yamkuntho kapena mvula yamphamvu.

Zinthu Zofunika Kwambiri

Chimodzi mwa zinthu zofunika kwambiri popanga mafelemu a maambulera osinthasintha ndi kusankha zipangizo. Maambulera amakono nthawi zambiri amagwiritsa ntchito zipangizo monga fiberglass, aluminiyamu, ndi ulusi wa kaboni pamafelemu awo. Zipangizozi zimapereka kuphatikiza koyenera kwa mphamvu ndi kusinthasintha.

Mwachitsanzo, fiberglass ndi chisankho chodziwika bwino chifukwa cha kupepuka kwake komanso kusinthasintha kwake kodabwitsa. Ikagwiritsidwa ntchito mokakamiza, fiberglass imatha kupindika ndikuyamwa mphamvu popanda kusweka, zomwe zimapangitsa kuti ikhale chisankho chabwino kwambiri pa nthiti za ambulera. Aluminiyamu ndi ulusi wa kaboni zimayamikiridwanso chifukwa cha kupepuka kwawo komanso kuthekera kwawo kupindika popanda kusinthika kosatha.