In this research, ADAMS engineering software has been used to create the power model of automobile engine mount system. The vibration reduction analysis for an original engine mount system was performed to calculate the vibration modes and the corresponding frequencies. The energy distribution and its ratios were calculated as well. The major optimization objective was to have the torque axis approach the elastic axis. Based on the dynamic simulation analysis, two optimization steps for engine mount system were performed. After optimization, full automobile model with 13 degrees of freedoms was created to calculate the reaction force at idle condition. The consistency between torque and elastic axes was obtained and the decoupling level in system principle direction was reduced. Both the vibration frequencies and reaction force were reduced at idle condition after optimization.

Full text: IJEIR_1661_Final.pdf