Arash Darvish Damavandi - Iran University of Science and Technology
Behrooz Mashhdi - Iran University of Science and Technology
Masoud Masih-Tehrani - Iran University of Science and Technology

This paper investigates the performance of the hydraulically interconnected suspension system with the full vehicle model of ride and handling. A sensitivity analysis has been performed by changing the coefficients of the cylinder and accumulator valves and the initial conditions of the accumulators in the default hydraulic circuits to determine the effect on the frequency and damping of the system response such as roll, pitch, and bounce. This study highlights the importance of the influence of all system parameters to investigate vehicle vibration characteristics. The results provide valuable insights for designers and engineers working on improving automotive suspension system performance. Damping and frequency of modes change up to ۱۷۹% with the change of cylinder valves and ۱۴۱% with the change of accumulator valves and ۷۴% for the initial pressure of accumulators change in mentioned range.

Hydraulically Interconnected Suspension, Full vehicle model, Sensitivity analysis, Default HIS, Frequency and damping of system