📘 mechanical vibrations
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Frekuensi Mode Shapes 017A06
1. **Menentukan frekuensi alami dan bentuk pola (mode shapes) sistem 3 DOF**
Diberikan matriks kekakuan $$\mathbf{K} = k \begin{bmatrix} 6 & -3 & 0 \\ -3 & 5 & -2 \\ 0 & -2 & 5 \en
Spring Block Motion
1. **State the problem:** A 13.6-kg block is attached to three springs arranged vertically: the top spring with stiffness $k_1=3500$ N/m, and two bottom springs with stiffness $k_2