有如下的微分方程 a d 2 u d x 2 + b = 0 , 0 ≤ x ≤ 2 L u ∣ x = 0 = 0 a d u d x ∣ x = 2 L = R \begin{aligned} & a\frac{d^2u}{dx^2}+b=0, \quad 0 \leq x \leq 2L \\ & \left. u \right|_{x=0}=0 \\ & a\left. \frac{du
Matlab 二维杆单元有限元模型编程求解代码 信息:The truss example to be solved using the completed code. The vertical and horizontal segments of the crane are made of aluminum (Young’s modulus E=70 GPa, and have a cross