mexanik tebranishlar

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18 pages

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Updated Dec 2025

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ppt/slides/slide1.xml ppt/slides/slide2.xml ppt/slides/slide3.xml ppt/slides/slide4.xml ppt/slides/slide5.xml ppt/slides/slide7.xml ppt/slides/slide8.xml ppt/slides/slide9.xml ppt/slides/slide10.xml ppt/slides/slide11.xml ppt/slides/slide12.xml ppt/slides/slide13.xml ppt/slides/slide14.xml ppt/slides/slide15.xml ppt/slides/slide16.xml ppt/slides/slide17.xml ppt/slides/slide18.xml ppt/_rels/presentation.xml.rels ppt/presentation.xml ppt/slides/_rels/slide5.xml.rels ppt/slides/_rels/slide4.xml.rels ppt/slides/_rels/slide3.xml.rels ppt/slides/_rels/slide2.xml.rels ppt/slides/_rels/slide1.xml.rels ppt/slides/_rels/slide7.xml.rels ppt/slides/_rels/slide8.xml.rels ppt/slides/_rels/slide9.xml.rels ppt/slides/_rels/slide10.xml.rels ppt/slides/_rels/slide11.xml.rels ppt/slides/_rels/slide12.xml.rels ppt/slides/_rels/slide13.xml.rels ppt/slides/_rels/slide14.xml.rels ppt/slides/_rels/slide15.xml.rels ppt/slides/_rels/slide16.xml.rels ppt/slides/_rels/slide17.xml.rels ppt/slides/_rels/slide18.xml.rels ppt/notesslides/notesslide4.xml ppt/notesslides/notesslide5.xml ppt/notesslides/notesslide7.xml ppt/notesslides/notesslide6.xml ppt/slidemasters/slidemaster1.xml ppt/slidelayouts/slidelayout1.xml ppt/slidemasters/_rels/slidemaster1.xml.rels ppt/notesslides/notesslide3.xml ppt/slidelayouts/slidelayout2.xml ppt/slidelayouts/slidelayout3.xml ppt/slidelayouts/slidelayout5.xml ppt/slidelayouts/slidelayout6.xml ppt/slidelayouts/slidelayout7.xml ppt/slidelayouts/slidelayout8.xml ppt/slidelayouts/slidelayout9.xml ppt/slidelayouts/slidelayout10.xml ppt/slidelayouts/slidelayout11.xml ppt/notesslides/notesslide2.xml ppt/slidelayouts/slidelayout4.xml ppt/notesslides/notesslide1.xml ppt/slidelayouts/_rels/slidelayout1.xml.rels ppt/slidelayouts/_rels/slidelayout2.xml.rels ppt/slidelayouts/_rels/slidelayout3.xml.rels ppt/slidelayouts/_rels/slidelayout4.xml.rels ppt/slidelayouts/_rels/slidelayout5.xml.rels ppt/slidelayouts/_rels/slidelayout6.xml.rels ppt/slidelayouts/_rels/slidelayout7.xml.rels

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ppt/slidelayouts/_rels/slidelayout9.xml.rels ppt/slidelayouts/_rels/slidelayout10.xml.rels ppt/slidelayouts/_rels/slidelayout11.xml.rels ppt/notesslides/_rels/notesslide1.xml.rels ppt/notesslides/_rels/notesslide2.xml.rels ppt/notesslides/_rels/notesslide3.xml.rels ppt/notesslides/_rels/notesslide4.xml.rels ppt/notesslides/_rels/notesslide5.xml.rels ppt/notesslides/_rels/notesslide6.xml.rels ppt/notesslides/_rels/notesslide7.xml.rels ppt/slidelayouts/_rels/slidelayout8.xml.rels ppt/media/image21.wmf ppt/media/image22.wmf ppt/media/image23.wmf ppt/embeddings/oleobject6.bin ppt/embeddings/oleobject7.bin ppt/embeddings/oleobject8.bin ppt/embeddings/oleobject9.bin ppt/embeddings/oleobject10.bin ppt/embeddings/oleobject11.bin ppt/embeddings/oleobject12.bin ppt/media/image5.wmf ppt/embeddings/oleobject14.bin ppt/embeddings/oleobject15.bin ppt/media/image24.gif ppt/drawings/vmldrawing5.vml ppt/media/image25.wmf ppt/media/image26.wmf ppt/media/image27.wmf ppt/media/image28.wmf ppt/media/image29.wmf ppt/media/image30.wmf ppt/media/image31.wmf ppt/media/image32.wmf ppt/embeddings/oleobject16.bin ppt/embeddings/oleobject17.bin ppt/embeddings/oleobject18.bin ppt/embeddings/oleobject19.bin ppt/embeddings/oleobject20.bin ppt/embeddings/oleobject21.bin ppt/embeddings/oleobject22.bin ppt/embeddings/oleobject23.bin ppt/embeddings/oleobject24.bin ppt/embeddings/oleobject25.bin ppt/embeddings/oleobject26.bin ppt/drawings/vmldrawing6.vml ppt/media/image33.wmf ppt/media/image34.wmf docprops/thumbnail.jpeg ppt/notesmasters/notesmaster1.xml ppt/theme/theme1.xml ppt/theme/theme2.xml ppt/media/image1.png ppt/media/image2.gif ppt/media/image3.gif ppt/drawings/vmldrawing1.vml ppt/media/image4.wmf ppt/media/image6.wmf ppt/media/image7.wmf ppt/drawings/vmldrawing3.vml ppt/notesmasters/_rels/notesmaster1.xml.rels ppt/media/image8.wmf ppt/media/image9.wmf ppt/media/image10.wmf ppt/media/image11.wmf ppt/embeddings/oleobject2.bin ppt/embeddings/oleobject3.bin ppt/embeddings/oleobject4.bin ppt/embed

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dings/oleobject13.bin ppt/embeddings/oleobject5.bin ppt/media/image12.gif ppt/media/image13.gif ppt/drawings/vmldrawing4.vml ppt/drawings/_rels/vmldrawing1.vml.rels ppt/media/image14.wmf ppt/media/image15.wmf ppt/drawings/_rels/vmldrawing3.vml.rels ppt/media/image16.wmf ppt/drawings/_rels/vmldrawing4.vml.rels ppt/media/image17.wmf ppt/drawings/_rels/vmldrawing5.vml.rels ppt/media/image18.wmf ppt/drawings/_rels/vmldrawing6.vml.rels ppt/media/image19.wmf ppt/media/image20.wmf ppt/presprops.xml ppt/tablestyles.xml ppt/viewprops.xml ppt/activex/activex3.bin docprops/core.xml docprops/app.xml ppt/activex/activex2.bin ppt/activex/_rels/activex1.xml.rels ppt/activex/_rels/activex2.xml.rels ppt/activex/activex2.xml ppt/activex/activex1.bin ppt/activex/_rels/activex3.xml.rels ppt/activex/activex1.xml ppt/tags/tag1.xml ppt/activex/activex4.xml ppt/activex/activex4.bin ppt/activex/activex5.xml ppt/activex/_rels/activex4.xml.rels ppt/activex/_rels/activex5.xml.rels ppt/activex/activex5.bin ppt/activex/activex3.xml ppt/drawings/_rels/vmldrawing2.vml.rels ppt/drawings/vmldrawing2.vml ppt/media/image1200.png ppt/slides/_rels/slide6.xml.rels ppt/slides/slide6.xml [content_types].xml _rels/.rels docprops/custom.xml 7 -mavzu . mexanik tebranishlar. ma’ruzachi : aniq fanlar kafedrasi o‘qituvchisi d. to‘rayev reja * tebranma jarayonlar to‘g‘risida tushuncha . * garmonik tebranish . * matematik , prujinali mayatniklar . boshlang‘ich uzatilgan energiya hisobiga , keyinchalik tebranish tizimiga tashqi ta’sir o‘tmasdan sodir bo’ladigan tebranishlar erkin yoki xususiy tebranishlar deb ataladi . davriy o’zgaradigan tashqi ta’sir ostida sodir bo’ladigan tebranishlar majburiy tebranishlar deb ataladi . tebranma jarayonlar vaqt bo’yicha aniq qaytariladigan harakat yoki jarayonlar tebranma jarayonlar deb ataladi . tebranish davriga teskari bo’lgan kattalik , birlik vaqt ichidagi to’la tebranishlar sonini belgilaydi va u tebranishlar chastotasi deb ataladi . tebranish fazasi berilgan vaqt momenti

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dagi tebranuvchi kattalikning qiymatini belgilaydi . φ t = 0 vaqt momentidagi tebranishning boshlang’ich fazasi : (  t +  ) t vaqt momentidagi tebranish fazasi . t tebranish davri deb tebranuvchi tizim holati takrorlanishining eng kichik davriga aytiladi . ( bitta to’la tebranish sodir bo’ladi ) va tebranish fazasi 2  ga oshadi . prujinali mayatnik ishqalanish kuchi hisobga olingandagi harakat tenglamasi r – qarshilik koeffitsiyenti prujinali mayatnik – yuqori tarafi qo’zg’almas etib qotirilgan spirally prujinaning pastiga ilingan m – massali yukchadan iboratdir , u elastic kuch ta’sirida garmonik tebranma harakat qiladi . mayantikning harakat tenglamasi tebranish chastotasi va davri potensial energiya matematik mayatnik ma tematik mayatnik – og’irligi hisobga olinmaydigan l uzunlikdagi cho’zilmaydigan ipga osilgan m massali moddiy nuqtadir , u og’irlik kuchi ta’sirida garmonik tebranma harakat qiladi . qaytaruvchi kuch tebranish chastotasi va davri mayatnikning harakat tenglamasi  kichik burchaklarda to‘lqin turlari to‘lqin fronti yoki to‘lqin …

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sh mumkin : bo‘ylama to‘lqinlar – muhitning zarrachalari to‘lqin tarqalish yo‘nalishi bo‘ylab tebranadi . bo‘ylama to‘lqinlarning tarqalishi elastik muhitning siqilish va cho‘zilish deformatsiyalariga bog‘liq va barcha muhitlarda : suyuqlik , qattiq jism va gazlarda sodir bo‘ladi ; ko‘ndalang to‘lqinlar – muhit zarrachalari to‘lqin tarqalish yo‘nalishiga perpendikulyar yo‘nalishda tebranadilar . ko‘ndalang to‘lqinning tarqalishi siljish deformatsiyasiga bog‘liq bo‘ladi va u faqat qattiq jismlarda kuzatiladi . bo‘ylama to‘lqinlarning tarqalish tezligi v b = 𝑬 𝝆 dan iborat . bu erda e – yung moduli; ρ – elastik muhitning zichligi . ko‘ndalang to‘lqinning tarqalish tezligi v k = 𝑮 𝝆 dan iborat . bu erda g – siljish moduli. yung moduli siljish modulidan katta bo‘lgani uchun ( e > g ) , bo‘ylama to‘lqin tezligi ko‘ndalang to‘lqin tezligidan kattadir : v b > v k . nazorat savollari . tebranishlar deb nimaga aytiladi ? to‘lqinlar haqida ma’lumot bering . adabiyotlar . 1. abduraxmanov k.p, …

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ppt/slides/slide1.xml ppt/slides/slide2.xml ppt/slides/slide3.xml ppt/slides/slide4.xml ppt/slides/slide5.xml ppt/slides/slide7.xml ppt/slides/slide8.xml ppt/slides/slide9.xml ppt/slides/slide10.xml ppt/slides/slide11.xml ppt/slides/slide12.xml ppt/slides/slide13.xml ppt/slides/slide14.xml ppt/slides/slide15.xml ppt/slides/slide16.xml ppt/slides/slide17.xml ppt/slides/slide18.xml ppt/_rels/presentation.xml.rels ppt/presentation.xml ppt/slides/_rels/slide5.xml.rels ppt/slides/_rels/slide4.xml.rels ppt/slides/_rels/slide3.xml.rels ppt/slides/_rels/slide2.xml.rels ppt/slides/_rels/slide1.xml.rels ppt/slides/_rels/slide7.xml.rels ppt/slides/_rels/slide8.xml.rels ppt/slides/_rels/slide9.xml.rels ppt/slides/_rels/slide10.xml.rels ppt/slides/_rels/slide11.xml.rels ppt/slides/_rels/slide12.xml.rel...

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