zakoni vrashatelnoy mexaniki

PPTX 20 pages 3.1 MB Free download

20 pages

FaylHub.uz

Download via Telegram

Size 3.1 MB

File type PPTX

Pages 20

Updated Dec 2025

Page preview (5 pages)

Scroll down 👇

1 / 20

powerpoint presentation zakoni vrashatelnoy mexaniki. kineticheskaya energiya dvijushegosya ob'ekta ️ 🐾 1. vrashatelnaya kinematika i dinamika 2. kineticheskaya energiya vrasheniya 3. sovmestnoe vrashenie i postupatelnoe dvijenie plan: teorema o parallelnix osyax teorema o parallelnix osyax: vichislyaet moment inertsii tela otnositelno lyuboy osi, znaya moment inertsii otnositelno tsentra mass i rasstoyanie mejdu osyami. formula: i = i cm + md², gde m — massa tela. primenima k lyubomu tvyordomu telu. uglovoe peremeshenie, skorost i uskorenie vtoroy zakon nyutona dlya vrasheniya: στ = iα. kineticheskaya energiya vrasheniya: 12,5 dj. soxranenie momenta impulsa kineticheskaya energiya dvijushegosya ob'ekta ravna ½mv². rotatsionnoe dvijenie, opisivaemoe zakonami nyutona, — vrashenie vokrug osi. krutyashiy moment (τ = rfsinθ), analog sili dlya vrasheniya, vizivaet uglovoe uskorenie (α = τ/i). uglovoe uskorenie maxovika (radius 0 primenenie vrashatelnoy mexaniki kineticheskaya energiya vrashayushegosya tela skladivaetsya iz postupatelnoy i vrashatelnoy sostavlyayushix. rotatsionnaya mexanika upravlyaet momentom impulsa (l=iω), vajnim dlya giroskopov (naprimer, v aerokosmicheskoy …

2 / 20

vijushegosya avtomobilya: bolshaya, postupatelnaya; vrashatelnaya energiya kolyos — znachitelno menshe. kineticheskaya energiya vrashayushixsya tel kineticheskaya energiya (ke) katyashegosya ob'ekta (naprimer, sferi massoy 10 kg, katyasheysya so skorostyu 5 m/s po 30-gradusnomu sklonu v denvere) vklyuchaet postupatelnuyu ke (1/2mv²) i vrashatelnuyu ke (1/2iω²). kineticheskaya energiya dvijushegosya ob'ekta zavisit tolko ot massi i skorosti. teorema o perpendikulyarnix osyax kineticheskaya energiya dvijushegosya tela: ke t = ½mv² (postupatelnaya), ke r = ½iω² (vrashatelnaya). polnaya energiya (naprimer, katyashegosya kolesa) – summa obeix. rascheti momenta inertsii zakoni vrashatelnogo dvijeniya: analog vtorogo zakona nyutona — τ = iα (moment sili raven momentu inertsii, umnojennomu na uglovoe uskorenie). v sistemax s postoyannim vneshnim momentom sili soxranyaetsya moment impulsa (l = iω) raschet momenta inertsii (i) zavisit ot raspredeleniya massi; dlya sploshnogo tsilindra radiusa 'r' i massi 'm', i = (1/2)mr². teorema o parallelnix osyax smeshaet i na rasstoyanie 'd' ot tsentra mass: i = itsm + md² …

3 / 20

v londone, v otlichie ot postupatelnoy kineticheskoy energii (½mv²) rabota i moshnost vrasheniya rabota vrasheniya (w) = τθ; moshnost (p) = τω; kineticheskaya energiya (ke) = ½iω²; vtoroy zakon nyutona (analog): τ = iα. moment sil otnositelno nepodvijnoy osi v pole zemli opisivaetsya τ = iα. kineticheskaya energiya vrasheniya (naprimer, maxovika, i = ½mr²) pri ω = 10 rad/s vichislyaetsya kak ke = ½iω² krutyashiy moment i moment inertsii moment inertsii (i, kg⋅m²) — eto soprotivlenie uglovomu uskoreniyu, zavisyashee ot raspredeleniya massi otnositelno osi vrasheniya. dlya tochechnoy massi (m) na rasstoyanii (r) on raven mr². teorema o parallelnix osyax pozvolyaet vichislit i otnositelno raznix osey kineticheskaya energiya vrashayushegosya tela: ke = ½iω². postupatelnaya: ke = ½mv². katyasheesya telo imeet obe. zakon soxraneniya energii primenim v zamknutix sistemax. svyaz lineynix i uglovix velichin lineynaya skorost (v) svyazana s uglovoy skorostyu (ω) kak v = rω; vtoroy zakon nyutona dlya vrasheniya: στ …

4 / 20

renie igraet klyuchevuyu rol, vliyaya na uskorenie spasibo za vnimanie @taqdimot_robot image3.png image4.jpg image5.jpg image6.jpg image7.jpg image8.jpg image9.jpg image10.jpg image11.jpg image12.jpg image13.jpg image14.jpg image15.jpg image16.jpg image17.jpg image18.jpg image19.jpg image20.jpg image1.png

5 / 20

Want to read more?

Download all 20 pages for free via Telegram.

Download full file

About "zakoni vrashatelnoy mexaniki"

powerpoint presentation zakoni vrashatelnoy mexaniki. kineticheskaya energiya dvijushegosya ob'ekta ️ 🐾 1. vrashatelnaya kinematika i dinamika 2. kineticheskaya energiya vrasheniya 3. sovmestnoe vrashenie i postupatelnoe dvijenie plan: teorema o parallelnix osyax teorema o parallelnix osyax: vichislyaet moment inertsii tela otnositelno lyuboy osi, znaya moment inertsii otnositelno tsentra mass i rasstoyanie mejdu osyami. formula: i = i cm + md², gde m — massa tela. primenima k lyubomu tvyordomu telu. uglovoe peremeshenie, skorost i uskorenie vtoroy zakon nyutona dlya vrasheniya: στ = iα. kineticheskaya energiya vrasheniya: 12,5 dj. soxranenie momenta impulsa kineticheskaya energiya dvijushegosya ob'ekta ravna ½mv². rotatsionnoe dvijenie, opisivaemoe zakonami nyutona, — vrashenie vokrug os...

This file contains 20 pages in PPTX format (3.1 MB). To download "zakoni vrashatelnoy mexaniki", click the Telegram button on the left.

Tags: zakoni vrashatelnoy mexaniki PPTX 20 pages Free download Telegram