T g2=1.453rd/s g 2 rad o=√g29,=1.217rad/s B=922-91=0.434rad/s 归一化 7n1=n/B=14987=921B=2348 72=22/B=46082=2B=3348 72=g0/B=2804归一化： 2 2 2 1.453 / 2 tg rad s T     2 2 2 2 / 2 s s tg rad s T     0 1 2      1.217 rad /s 2 1 B      0.434 rad /s 1 1 / 1.498 s   s B  1 1    / B  2.348 2 2 / 4.608 s   s B  2 2    / B  3.348 2 0 1 2 0     / B  2.804