Abstract: The rigid connection of the shock absorber support and the piston rod in the mining vehicle makes the reliability of the shock absorber prone to failure and damage.In order to study the reliability of the shock absorber support for mining vehicles，firstly，Chinese self-owned brand mining truck（CMT96） was used to test on different standard roads，the vibration displacement data of the shock absorber was collected， and processed for a load spectrum used for bench experiments.Then，the mechanical model was established， and the theoretical analysis was carried out through the stress-strength interference model based on the processed load spectrum.Finally， 200 road spectrum samples were selected for bench durability test， and comparative verification and analysis were conducted.The study results showed that the reliability value of the shock absorber of the mining vehicle within 16 000 km is 1，and after one complete road spectrum cycle， which was slightly lower than the simulated result of 0.95.The large number of training samples reflects the deformation law of the shock absorber bearing on the whole.The Monte Carlo method based on the stress-strength interference model of road spectrum load was used to analyze the reliability of the shock absorber bearing of mining vehicles， which has a certain reference significance for the reliability design of the damper seat of mining vehicles.

Key words: mining truck, Monte Carlo method, road spectrum, damper seat, reliability analysis