007 Rotational Spring Minimum Stiffness To Stabilize The Unstable Compressive Element

In the other examples, the equilibrium path of the shown system has been determined. The first one was with a rotational spring, and the system was stable after the rotation of the bars. However, in the translational spring, the system was unstable. In this example, both springs are combined, and the target is to calculate the minimum rotational stiffness of the spring to stabilize the system. Assume the rotational stiffness C can be a portion of 𝑘𝑙^2, e.g., 𝐶=𝛼𝑘𝑙^2.

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