Amandla Mechanical neentlobo zayo

Igama elithi "amandla" lisuka ulwimi isiGrike kwaye ixabiso "action", "umsebenzi". Kwaloo nto iye yaziswa kuqala yamachiza British T. Jung ngenkulungwane XIX ekuqaleni. Igama elithi "amandla" libhekisela ekukwazini umzimba lo mhlaba ukuze benze lo msebenzi. Umzimba uyakwazi ukwenza kakuhle umsebenzi, amandla ngakumbi ngayo. Kukho iintlobo ezininzi ngayo: amandla elingaphakathi, umbane, mechanical kunye nuclear. Le yokugqibela kunokwenzeka ngakumbi ukuba zenzeke kubomi bethu bemihla ngemihla. Umntu kudala safunda ukuzivumelanisa ukuba ilingane iimfuno zakho ngokuguqula kumsebenzi ngoomatshini usebenzisa iindidi izixhobo zokwakha. Kwakhona ukuguqula ezinye iintlobo ze-eneji kwenye.

Njengenxalenye ubucukubhede (enye amasebe physics) amandla ngoomatshini - wobungakanani zomzimba oluphawula ukukwazi inkqubo (umzimba) nokwenziwa komsebenzi ngoomatshini. Ngenxa yoko, kubonisa ubukho olu hlobo lwe-eneji bubukho a uqina lomzimba, ukuba nayo ukwenza umsebenzi.

Iintlobo mechanical energy: agciniweyo kunye. Kwimeko nganye, le amandla entshukumo - inani scalar, lo udibaniso amandla entshukumo zonke iingongoma eziphathekayo babumba inkqubo ethile. Ngoxa lamandla of a (inkqubo yefowuni) eyodwa umzimba ixhomekeke indawo efanelekileyo leeyunithi yayo (yazo) phakathi lwangaphandle intsimi amandla. utshintsho Index lamandla kwenziwa umsebenzi.

Umzimba amandla agciniweyo xa ityhalela (kungenjalo oko kubizwa ngokuba intshukumo amandla), kunye nethuba - xa uvuka ngaphezu komhlaba (oku amandla yentsebenziswano) kwi ethile ephakamileyo. Kulinganiswa amandla ngoomatshini (kwakunye nezinye iindidi), e-ziijowule (J).

Ukuze ufumane amandla, nto leyo unomzimba, kubalulekile ukufumana umsebenzi kuzanywa uguqulelo kulo mzimba kwi imeko yangoku ukusuka kwimo zero (xa amandla umzimba ilingana zero). Le fomyula zilandelayo ngawo amandla ngoomatshini kunye neentlobo yayo kumiselwa:

- entshukumo - Ek = MV ^2/2;

- amathuba - ep = mgh.

Kwifomula: m - ubunzima umzimba, V - isantya yayo intshukumo phambili, g - ukukhawulezisa lweziganeko, h - ukuphakama apho umzimba ngaphezu komhlaba.

Ukufumana inkqubo lwemizimba lwe-eneji ngomatshini lilonke kukuchonga isixa yeencindi nobonisa entshukumo.

Imizekelo amandla ngomatshini ingasetyenziswa ngabantu kwaye lasungulwa kumaxesha amandulo izixhobo (imela, umkhonto, njalo njalo), kunye imilindo zamvanje, iinqwelo, kunye nezinye iindlela. Njengoko imithombo olu hlobo lwe-eneji kunye nomsebenzi wayo sikhonze amandla endalo (umoya, ulwandle namaza, imilambo) kunye nemizamo emzimbeni womntu okanye isilwanyana.

Namhlanje rhoqo umsebenzi ngoomatshini iinkqubo (umz, amandla shaft ojikelezayo) luxhomekeke inguqu elandelayo ekuvelisweni lwamandla ombane, esetyenziswa umbane namandla. Ezahlukeneyo izixhobo (iinjini) uyakwazi ukwenza ukuba ukuguquka ngokuqhubekayo ngamandla ngoomatshini kwi yokusebenza umthamo fluid.

Kukho umthetho wendalo yolondolozo oko, ngenxa apho kwinkqubo closed izidumbu apho kungekho ntshukumo imikhosi zochuku kunye nokumelana, rhoqo na isiphumo zombini iintlobo kuyo (Ek kunye EP) kuzo zonke imizimba alo. Le nkqubo ofanelekileyo, kodwa eneneni, ezi meko azikwazi kuphunyezwa.