6.1.22 v_E=-10j
6.1.24 v_C = 4.5j ft/s
v_B=(-9i+4.5j) ft/s
6.2.8 w_AB=10*sqrt(2) rad/s
6.2.22 r_ICR/A=(2i+7.46j) m
w=0.518 rad/s
6.3.12 ||aQ||/||aR||=0.369
6.3.20 wBC=-29.3k rad/s
wCD=11.3k rad/s
alphaBC=-645k rad/s^2
alphaCD=809 rad/s^2
6.4.3 vG=-88i ft/s
6.4.11 aP=-4b*dot(theta) b1
6.4.12 wT=(0.225/L) c3 m/s
6.4.23 ||aC||=sqrt( (a-w*w*x)^2+4*w*w*(v^2+2*a*x)^2 )
wL1=v1/(4*r1)
6.4.30 aA=(6.34 b1 + 9.70 b2) ft/s^2
7.1.11 FA=1.957N
7.1.14 alpha=-1.635 rad/s^2
F1=F2=44 N
7.2.4 Ixx=m*r^2*(1/2-4/pi^2)+m*h^2/12
7.2.6 Itotal=247*density*pi*r2^2/512
7.3.9 t=3.2159s when theta=1.0472 rad
7.3.12 alpha=-6.21*sin(theta) rad/s^2
7.3.15 T=-0.483F
7.3.16 alpha=-3g/2L aG=-3g/4 j
7.3.17 aG=-g/2 j m/s^2
alpha=-3g/L rad/s
7.3.18 m*dot(dot(y))+(kA+kB)*y+(0.35kB-0.65kA)*L*theta=0
I*alpha+[0.35^2*kB+0.65^2*kB]*L^2*theta*0.35kB-0.65kA)*L*y=0
7.3.29 No linear acceleration
alpha=24.2 rad/s^2
7.3.37 alpha=M/(Is+3*L^2*m_g+3*I_G*(L/R)^2)
7.3.40 t=1.39s
7.3.46 M=L*m_2*g/2
7.3.55 F_p=1190/u lb
7.4.11 w_2=12.1 rad/s
7.4.13 delta x=1.07 m
7.4.20 w=-5.44 k rad/s
7.4.22 w=233/L k rad/s
7.5.12 |v_block|=2.87 m/s
7.5.13 h=2.405 m
h=2.19 m
7.5.18 dot(dot(x))=-112m/s^2
7.5.20 dot(y)=4.63 ft/s
7.5.22 v=r*sqrt(8k/3m)
※ 编辑: edenshshsh 来自: 140.112.250.227 (06/13 19:43)