Parametric Design Method of Hydraulic Buffer System for Low-Speed Heavy-Load Trailer

To address the problem of high-pressure low-frequency hydraulic impact on the hydraulic buffer system mounted on self-propelled hydraulic trailer, a parametric simulation and design framework is provided for the widespread use of integrated accumulator systems in the low-speed heavy-load vehicle. A mathematical model of the accumulator was established for theoretical analysis, and numerical simulation were conducted on corresponding parameters using AMESim. Finally, a routine method was proposed to achieve feasible arrangement of accumulators. In this study, for the problem of high-pressure impact conditions caused by severe fluctuations, the system performance could be increased by arranging different combinations of accumulators with different parameter configurations. Taking a commercial model of heavy trailer as an actual case, a reasonable parameterized design was carried out for its comprehensive accumulator buffer system, and verification was conducted.