Method, system for selecting shock absorber of suspension equipment under train, and equipment

The invention is applicable to the technical field of rail transit, and provides a method, a system for selecting a shock absorber of suspension equipment under a train, and equipment. The method comprises the following steps: acquiring a first-order vertical bending frequency of a target train, a floating and sinking modal frequency of the suspension equipment under the train and a bearing reaction force at a suspension point where the shock absorber is located; according to the first-order vertical bending frequency and the floating and sinking modal frequency, determining the vibration isolation frequency range of the shock absorber; determining a target dynamic stiffness value and a target static stiffness value of the shock absorber according to the vibration isolation frequency range of the shock absorber and the bearing reaction force of the suspension point where the shock absorber is located; and determining the type of the selected shock absorber based on the target dynamic stiffness value, the targ