Research on Optimization of Track Dynamics Performance for the DC-32 Tamping Machine

Abstract

After a certain number of years of use, the line dynamics performance of the DC-32 tamping car has declined. Aiming at the poor dynamics performance of the DC-32 tamping car, combined with the structural characteristics of the DC-32 tamping car and the specific index parameters affecting the dynamics performance, by optimizing the selection of herringbone rubber shock absorbers and hydraulic shock absorbers, and re-adjusting the compression of the side bearings, a solution to solve the car shaking problem by adding anti-hunting dampers on the basis of the original bogie was proposed. The feasibility of the solution was further proved by experiments on the improvement of critical speed, stability index, vibration acceleration, and the changes of influencing factors such as derailment coefficient, wheel weight reduction rate, and wheel axle lateral force when the 08-32 tamping car passed through the curve.