(Solved): c) Kinematic wavelengths of train hunting behaviours can be expressed using the following equations ...

c) Kinematic wavelengths of train hunting behaviours can be expressed using the following equations: For wheel sets: \\( L_{w}=2 \\pi \\sqrt{\\frac{r s}{2 \\lambda_{e f f}}} \\) For bogies: \\( L_{b}=L_{W} \\sqrt{1+\\left(\\frac{w}{s}\\right)} \\) where: \\[ \\begin{array}{l} r=\\text { wheel radius } \\\\ \\lambda_{\\text {eff }}=\\text { wheel conicity effective } \\\\ w=\\text { bogie wheel base } \\\\ s=\\text { distance between contact points on the rails }(\\approx \\text { track gauge }) \\end{array} \\] Explain why you need to consider these hunting behaviours.