Low-frequency multi-direction vibration test and parameter identification of vehicle human-seat system

Human-vehicle interaction has significant effects on the handling stability of vehicle and the study on the low-frequency multi-direction vibration characteristics of human-seat system, main interface of human-vehicle interaction, has great significance in the analysis on human-vehicle interaction. In view of this, a 12 DOF 3D dynamics model for human-seat system is established, and a human-seat multi-direction vibration test in a frequency range of 0.5-5Hz is conducted on a multi-direction vibration test bench, and 36 parameters of low-frequency multi-direction vibration characteristics are identified. The results show that the scheme proposed of low frequency multi-direction vibration test and parameter identification is feasible and the parameters identified can represent the low frequency multi-direction vibration characteristics of vehicle human-seat system. © 2016, Society of Automotive Engineers of China. All right reserved.