Problem 4 (30%)The dynamic equation of a DC motor is described bywhere i(t) is the driving current and ω(t) is the angular velocity of the motor.
二、一均勻斷面長度為 L 的懸臂柱 AB,其 EI 值為常數,在 B 點受到軸向載重 P,如圖 二所示。假設其變形曲線方程式為 y = ax2 :