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A railway vehicle becomes unstable beyond a critical speed. Assessment of the critical speed is important for safety and passenger comfort. Bond graph model of a railway truck-wheelset system on flexible tangent track has been created with eighteen degrees of freedom considering six degrees of freedom for each wheelset and the truck unit without any linearity approximation for the wheelsets. Kalker's...
Rail vehicles become unstable beyond a critical speed because of speed dependant creep forces at the rail-wheel contact surface. There is a constant demand for improved rail vehicle model for design of high-speed vehicles, and track. Works available in the literature are based on models of trucks with various simplifying assumptions such as reduced degree of freedom, small displacements and without...
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