880.如圖所示之周轉輪系,若輪2轉速為+6,旋臂轉速為-4,試求輪5、輪4之轉速分別為若干(旋臂繞輪2軸心旋轉)? 
(A)+10,-1.5
(B)-19.5,+1.5
(C)+26,-16.5
(D)-29.5,-2.5。
答案:登入後查看
統計: A(44), B(128), C(516), D(24), E(0) #677793
統計: A(44), B(128), C(516), D(24), E(0) #677793
詳解 (共 2 筆)
#3802142
周轉輪系,若輪2轉速為N2=+6,旋臂轉速為m=-4
T2=100,T3=80,T4=120,T5=50
(N5-m)/(N2-m)=+[(T2*T4)/(T3*T5)]
(N5-(-4))/(6-(-4))=+[(100*120)/(80*50)]
N5=26 rpm
N4=N3
(N3-m)/(N2-m)=-(T2/T4)
(N3-(-4))/(6-(-4))=-(100/80)]
N3=N4=-16.5 rpm
9
0