Research on Maglev Vibration Isolation Technology for Vehicle Road Noise Control
- Dali Fan - State Key Laboratory of Vehicle NVH and Safety Technology, China Changan Automobile Co., Ltd., Changan Automotive Global R&D Center, China ,
- Peisong Dai - Southwest Jiaotong University, China ,
- Mingliang Yang - Southwest Jiaotong University, China ,
- Wenyu Jia - State Key Laboratory of Vehicle NVH and Safety Technology, China Changan Automobile Co., Ltd., Changan Automotive Global R&D Center, China ,
- Xiaoli Jia - State Key Laboratory of Vehicle NVH and Safety Technology, China Changan Automobile Co., Ltd., Changan Automotive Global R&D Center, China ,
- Haibo Huang - Southwest Jiaotong University, China
Journal Article
10-06-03-0016
ISSN: 2380-2162, e-ISSN: 2380-2170
Sector:
Topic:
Citation:
Fan, D., Dai, P., Yang, M., Jia, W. et al., "Research on Maglev Vibration Isolation Technology for Vehicle Road Noise Control," SAE Int. J. Veh. Dyn., Stab., and NVH 6(3):233-245, 2022, https://doi.org/10.4271/10-06-03-0016.
Language:
English
Abstract:
The control of road structure noise has always been the focus and difficulty of
automobile vibration and noise reduction. Aiming at the control of road
structural noise, a maglev actuator suitable for automobile suspension was
designed. First, the working principle of the maglev actuator and the actuator
output force with the finite element model were analyzed. Based on this
analysis, the structural design of the maglev actuator was completed. Second,
based on a domestic SUV passenger car as a platform, the overall layout of the
maglev suspension and its control system design were completed, and a suspension
model equipped with a maglev actuator was established. Finally, the vibration
isolation effect of maglev suspension was compared and analyzed under random
road excitation. The results show that the designed maglev suspension has
excellent vibration isolation performance in the 20-300 Hz frequency band, and
the power loss is less than 1/1000 of the power of the automobile engine, which
provides a new idea for road structure noise management.