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drekadi talRebi. ZiriTadi cnebebi. drekadi talRebi drekad<br />
garemoSi gavrcelebuli meqanikuri SeSfoTebaa (deformaciebi) talRis<br />
wyaroebad gvevlinebian sxeulebi, romlebic garemoze zemoqmedebiT masSi<br />
aRZraven SeSfoTebebs.<br />
talRebia.<br />
bgeriTi (akustikuri) talRebi mcire intensivobis drekadi<br />
adamianis yuri aRiqvams bgerebs, romelTa sixSire moTavsebulia 20<br />
hc-dan 20 khc-mde. 20 hc dabali sixSiris rxevebs infrabgera ewodeba, 20<br />
khc maRals ki ultrabgera.<br />
garemo erTgvarovania, Tu misi fizikuri Tvisebebi ucvlelia<br />
wertilidan wertilSi, xolo izotropiulia Tu fizikuri Tvisebebi<br />
erTnairia yvela mimarTulebiT (sawinaaRmdegoa anizropuli).<br />
msrboli talRa _ talRaa, romelsac gadaaqvs energia sivrceSi.<br />
talRis fronti _ im wertilebis geometriuli adgilia, romlebsac<br />
talRa garkveul momentSi miaRwevs.<br />
talRis zedapiri _ im wertilebis geometriuli adgilia, romlebic<br />
erTnair fazebSi irxevian.<br />
talRis gavrcelebis mimarTulebas sxivi ewodeba, xolo manZils,<br />
romelzedac sinosoidaluri talRuri moZraoba vrceldeba erT<br />
periodSi, talRis sigrZe ewodeba.<br />
4.7. brtyeli talRis gantoleba<br />
talRuri zedapirebis mixedviT ganixilebian brtyeli, sferuli da<br />
cilindruli talRebi. talRuri zedapirebis raodenoba talRaSi<br />
usasruloa, gansxvavebiT talRuri frontisgan. isini gadaadgilebas ar<br />
ganicdian. talRuri fronti ganicdis mudmiv gadaadgilebas da drois<br />
yoveli momentisTvis erTaderTia.<br />
brtyeli sinosoidaluri, x RerZis dadebiTi mimarTulebis gaswvriv<br />
gavrcelebuli talRis gantolebaa<br />
⎡ ⎛ x ⎞ ⎤<br />
ξ ( x, t)<br />
= Acos⎢ω⎜<br />
t − ⎟ + α ⎥<br />
⎣ ⎝ v ⎠ ⎦<br />
sadac A − talRis amplitudaa;<br />
ω − talRis cikluri (wriuli) sixSire;<br />
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