"rtrst" - 1 õppematerjal

Mehhaanika süsteemide modelleerimine

s tst õ R = -µv = -µx. s s x = -cx - µx x¨ + 2hx + 2 x = 0, m¨ s µ m = 2h tst är st rt st r õrr 2 + 2h + 2 = 0,  1 , 2 = -h ± h2 - 2 . h < ss rtrst õrr ts ssr 1 = -h + i1 , 2 = -h - i1 , s 1 = 2 - h2 s ü x = e-ht (C1 cos 1 t + C2 sin 1 t) s t õ x = Ae-ht sin(1 t + ), s C1 . A= C12 + C22 , = arctan C2 r tt r sst tts är ss ä ää sttss ss x = Ae-ht [-h sin(1 t + ) + 1 cos(1 t + )]; t = t1 ä s st x(t 1 ) = 0 ss 1