As a key component connecting the powertrain and the vehicle body, the rubber isolator plays a vital role in reducing the vibration transmitted from the powertrain to the body. With the continuous development of electric vehicles, the excitation frequency generated by the electric vehicle powertrain has exceeded 2 000 Hz. However, the research on the dynamic characteristics of rubber isolators is still mainly concentrated in the low and middle frequency range of 0-200 Hz. Most of the researches on the high-frequency dynamic characteristics of rubber isolators only use the finite element method, and there are few studies using dynamic models to calculate the high-frequency dynamic characteristics. Therefore, in this presentation, the modeling methods of high-frequency dynamic characteristics of single-stage and double-stage rubber isolators are studied respectively. 

Dr. Xiaoang Liu received the B.Sc. and Ph.D. degree in Vehicle Engineering from South China University of Technology, Guangdong, China, in 2011 and 2016. From 2016, she joined the School of Mechanical Engineering, Hebei University of Technology, as a Lecturer. In 2020 and 2023, she has promoted to the position of Associate Professor and professor. She has published more than 30 internationally refereed journals and conference papers. Her research interests include load identification, vibration and noise control and their applications.