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PUTK

PUTK, moshini zarbazan baroi korkardi masolehi metalli, ki dar istehsoloti ohangariyu shtamponi baroi haddodi va shtamponii hajmiyu varaqakuni istifoda mesha­vad. Putkhoi fishangdori dasti az asrhoi 13—14 malumand. Soli 1784 J. Uatt baroi harakat kunondani qismhoi mutaqarriki Putk istifoda burdani bugro peshnihod kard. Ammi faqat soli 1842 J. Nesmit avvalii Putki bugiro sokhta, ba on patent girift. Az ibtidoi asri 20 istifodai Putkhoi harakatovarashon elektri vusat yoft. Az rui khususiyati mekhanizmhoi harakatovar chunin namudhoi Pukt mamuland: bugu havoi, Pnevmatiki, gidravliki, mekhaniki, elektromagniti va gayra. Qismhoi asosii Putkro porshen, shtok, baba (gurz), shabot (sandon), sutunahoi samtdeh baroi harakati qismhoi mutaharrik, mekhanizmhoi harakatovaru idorakuni tashkil medihand. Hangomi poyon shudani qismi mutaharrik (porshen) gurz ba ashyoi rui say­hoi zarba zada, onro ba shakli matlub medarorad. Parametrhoi aso­sie, ki khususiyathoi konstruktivi va tainoti tekhnologii Putkhoro muayyan mekunand, energiyai kinetikii qismhoi mutaharrik yo khud massai qismhoi aftanda (gurz) ba hisob meravand. Holo Pukthoi balandsurat beshtar mamuland, ki dar onho energiyai kinetikii samaranok to 1000 kJ, surati aftishi gurz to 12—20 m/son (dar Putkhoi muqarrari 5—6 m/son) merasad.

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SAMOLYOT

SAMOLYOT, apparati parishi muharriku boldori vaznintar az havoet, ki baroi parvoz dar atmosfe¬ra tain shudaast. …