alaabta

Goonada trailer-ka ama goonnada dhinacku waa aalad ku dheggan dhinaca hoose ee qaybta-geeska-yar-yar, ujeeddaduna tahay in la dhimo jiidashada aerodynamic ee ay keento qaska hawada.

Goonada goos goosku waxay ka kooban yihiin labo baalle oo ku dheggan cidhifyada dhinaca hoose ee trailer, oo ordaya inta badan dhererka tareenka oo buuxinaya farqiga u dhexeeya faashashka hore iyo dambe. Koofiyadaha goos gooska ah waxaa sida caadiga ah laga dhisay aluminium, caag, ama fiberglass, oo leh balaastiig ka ugu adkeysi badan waxyeelada dhinaca ama hoose.

Baadhitaan 2012 ay samaysay SAE International ee sagaal nashqadaha goonnada trailer-ka ayaa lagu ogaaday in saddex ay bixiyeen kayd shidaal oo ka badan 5%, iyo afar ay bixiyeen kayd u ​​dhexeeya 4% iyo 5%, marka la barbar dhigo trailer aan la beddelin. Dharka leh nadiifinta dhulka oo yar ayaa bixiya kayd shidaal oo badan; Hal tusaale, hoos u dhigista nadiifinta dhulka laga soo bilaabo 16 in (41 cm) ilaa 8 in (20 cm) waxay keentay horumar ku yimid kaydinta shidaalka 4% ilaa 7%.Hal 2008 Jaamacadda Delft University of Technology ayaa lagu ogaaday kaydka shidaalka ilaa 15% naqshadda gaarka ah ee la bartay. Sean Graham, oo madax ka ah alaab-qeybiyaha ugu weyn ee goonnada trailer-ka, ayaa ku qiyaasay in isticmaalka caadiga ah, darawaladu ay arkaan kaydka shidaalka 5% ilaa 6%.

Waxaan ka caawin karnaa macaamiisheena inay sameeyaan naqshadeynta. Ilaali wakhtigaaga iyo kharashkaaga si aad isugu keento. Agabka waa la habayn karaa Khibrad qani ah oo ku saabsan qaabeynta qaabdhismeedka, waxaan buuxin karnaa inta badan shuruudaha macaamiisha.