To the diagnostic technique of support-returning devices and of the spring suspension of diesel locomotives

The developed dynamic calculation schemes for the horizontal and vertical dynamics of the bogie carriages of the TEP70 BS passenger diesel locomotive under an impulsive load on its body are presented. Equations of oscillations of the components of the undercarriage of the specified diesel locomotive are obtained, describing the energy state of the diagnosed system with the subsequent substantiation of the equations of coupled mass oscillations in the horizontal and vertical planes of the diagnosed diesel locomotive using Lagrange equations of the 2nd kind.

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