Studies on the dynamic characteristics of vibration energy recovery system
2022-01-0337
03/29/2022
- Event
- Content
- The vehicle suspension plays a significant role in alleviating the vibrations translated from the rough road and most of the vibrations are dissipated by the hydraulic shock absorber. Vibration energy harvesting technology is widely concerned for the self-powered wireless sensor system in intelligent vehicle. However, the system dynamic characteristics changes due to the coupling between the vibration and electro-magnetic induction. Mechanical electromagnetic coupling is investigated in this paper, a quarter vehicle vibration energy recovery model including electromagnetic system is established. And this paper focuses on the dynamic stiffness and normalized damping, which are often ignored by researchers. A harmonic excitation is applied to the vehicle suspension, and the dynamic stiffness and damping in time domain is studied by changing the frequency of harmonic excitation. And the time-domain response function of vehicle vibration acceleration under harmonic excitation and square excitation is studied by comparing with the vehicle model without electromagnetic system. This paper is the first step to study the vibration characteristics of the vehicle suspension, and this paper provides an analysis idea for future researchers on vehicle suspension vibration and energy recovery.
- Citation
- Zhu, H., Liu, Y., Tian, S., Yun, S. et al., "Studies on the dynamic characteristics of vibration energy recovery system ," SAE Technical Paper 2022-01-0337, 2022, .