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CAPITOLUL 1

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STABILITATEA ŞI DINAMICA CONSTRUCŢIILOR 77<br />

ω=31,7490 rad s -1 ,<br />

luând în considerare şi condiţiile iniţiale, aflăm:<br />

A=0,0373 (m), Aω=0,1846 ms -1 , Aω 2 =37,6088 ms -2<br />

ϕ=0,5657 (s), ϕ/ω=0,01782<br />

Expresiile x ( t),<br />

x&<br />

( t),<br />

x&<br />

& ( t)<br />

sunt reprezentate în figura 2.19.<br />

X(t)<br />

x(t)<br />

ϕ/ω=0.017<br />

0.5=x0<br />

ϕ/ω=0.01782 s<br />

0.02=x0<br />

0.0373A<br />

Aω=0.1846 m⋅s -1<br />

T = 0.197 s<br />

T = 0.197 s<br />

Fig. 2.19<br />

Fig.2.19.a<br />

t<br />

t

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