Ndeipi centripetal kumhanyisa?

Fungidzira pfungwa pamusoro rinoronga nendege. Two mwaranzi zvinobva pazviri, zvinoumba necheparutivi. kukosha kwayo rinogona kurondedzerwa sapamazuva radians kana inegumi. Zvino chinhambwe kubva pakati pfungwa isu tiswedere denderedzwa mupfungwa. Nechiyero yorusvingo, chinoratidzwa radians, pakadai munhu akarongeka yomumba riemukaari urefu L, vaviri vakaparadzana matanda kuti kukosha kure pakati nepakati pfungwa uye denderedzwa mutsetse (R), i.e .:

Fi = L / R

Kana isu parizvino ari zvinorondedzerwa zvinhu mugadziriro, inogona kushandawo kwete chete kune pfungwa angled uye nharaunda, asiwo centripetal kumhanyisa, kutenderera, etc. Vazhinji vavo kutsanangura maitiro ane pfungwa iri kutenderera sekamufarenzi. Pakazosvika nzira, chichiitwa ngarurege zvinogonawo hunomiririrwa chine madenderedzwa, mutsauko kuti chete kure pakati.

Mumwe zvinoitwa kutenderera ezvinhu akadaro - kurapa nguva. Inoratidza kukosha nguva iyo chinhu zvemasanga pfungwa pamusoro sekamufarenzi ari kudzoka kuti kwokutanga nechinzvimbo kana, riri rechokwadi, vachadzokera 360 inegumi. At kuramba kumhanya kutenderera rinoitwa chienderane T = (2 * 3,1416) / Ug (hereinafter Ug - angled).

Rotational nokukurumidza inoratidza nhamba izere rotations aitira 1 wechipiri. At kuramba kumhanya v = tinowana 1 / T.

The chisina kutsetseka velocity kunobva nguva uye vanonzi angled kuti kutenderera. Ndiko, kana tikatora sezvo kwakabva ane zvemasanga pfungwa A pamusoro denderedzwa, ipapo iyi achabviswa kuna A1 panguva T apo hurongwa rotates, achiumba necheparutivi pakati radii of A-A1 uye pakati-pakati. Kuziva nguva uye yorusvingo, zvinokwanisika kuverenga chisina kutsetseka velocity.

Uye nguva yava denderedzwa iri, kufamba uye kumhanya, ipapo uyewo centripetal kumhanyisa. Rinomirira mumwe zvinoriumba achirondedzera kufamba zvenyama pfungwa kune imwe curvilinear inofamba. The okuti "kuipa" uye "centripetal kumhanyisa" akafanana. Musiyano uri kuti rechipiri rinoshandiswa kurondedzera kwebasa denderedzwa, kana kumhanyisa Vector chinotungamirwa kurutivi pakati hurongwa. Naizvozvo zvakafanira nguva dzose kuziva chaizvo muviri kunoita (pfungwa) uye centripetal kumhanyisa. Zvaraireva sezvinotevera: ndiwo mwero kuchinja velocity Vector inoendeswa perpendicular nokutungamirira Vector pakati ari nguva imwe velocity uye anochinja zvevhiki okupedzisira. The Encyclopedia inoti kuti adzidze nyaya dzinobatanidzwa Huygens. Centripetal kumhanyisa yemaitiro, wakatangwa naye, sokunge:

Acs = (ndima * v) / R,

apo R - nharaunda pamusoro curvature of zvaiyambuka nzira; V - kumhanya kufamba.

The yemaitiro inoshandiswa kuverenga centripetal kumhanyisa, achiri kunokonzera vaitirane nharo pakati iyi. Somuenzaniso, vakazivisa ichangopfuura inonakidza dzidziso.

Huygens, kufunga hurongwa inobva chokwadi chokuti muviri zvinofamba denderedzwa nharaunda R ane nokukurumidza V, akayera panguva pokutangira A. Sezvo inertia pamusoro Vector chinotungamirwa achitevedza tangent kuti denderedzwa, kuti trajectory inotengwa muchimiro yakarurama mutsetse AD. Zvisinei, mashoko centripetal simba anochengeta muviri uri denderedzwa nguva C. Kana isu kureva musimboti G uye kuchengeta AB mutsetse, BO (zvachose BS uye CO), uyewo vadyi wemari kambani, zvinoitika netriangle. Maererano nomurayiro Achibvuma pfungwa yaPythagoras:

OA ndiye CO;

AB = T * V;

BS = (a * (T * t)) / 2, umo - kumhanyisa; T - nguva (a * t * t - ndiko nokukurumidza).

Kana tava kushandisa Pythagorean payakavakirwa, ipapo:

R2 + t2 + v2 = R2 + (a * t2 * 2 * R) / 2+ (a * t2 / 2) 2 apo R - nharaunda, uye tsamba-kuti-digitaalinen kunyora pasina chokuwanziridza chiratidzo - dhigirii.

Huygens akabvuma kuti, sezvo nguva T iri diki, hachigoni kurangarira iri Masvomhu. Tichichinja pamusoro payakavakirwa, inozivikanwa kuuya Acs = (ndima * v) / r.

Zvisinei, sezvo nguva kubatwa square, pane kunoita: mubato hombe, dzakanga kururama. Somuenzaniso, 0,9 zviri unaccounted anoda kusvika 20% yokupedzisira ukoshi.

Pfungwa centripetal kumhanyisa kunokosha kuti sayenzi yemazuva ano, asi, pachena, zvinondiremera mangwanani kuti agumise nyaya iyi.