TY - JOUR
T1 - An Electromagnetic Variable Stiffness Device for Semiactive Seat Suspension Vibration Control
AU - Ning, Donghong
AU - Du, Haiping
AU - Sun, Shuaishuai
AU - Zheng, Minyi
AU - Li, Weihua
AU - Zhang, Nong
AU - Jia, Zhijuan
N1 - Funding Information:
Manuscript received December 22, 2018; revised May 13, 2019 and June 29, 2019; accepted August 7, 2019. Date of publication August 28, 2019; date of current version March 31, 2020. This work was supported in part by the Fundamental Research Funds for the Central Universities of China under Grant JZ2019HGBH0198 and in part by the Australian Research Council’s Linkage Projects funding scheme (project number LP160100132). (Corresponding author: Haiping Du.) D. Ning is with the School of Mechanical Engineering, Hefei University of Technology, Hefei 230000, China, and also with the Faculty of Engineering and Information Sciences, University of Wollongong, Wol-longong, NSW 2522, Australia (e-mail:,dning@uow.edu.au).
Publisher Copyright:
© 1982-2012 IEEE.
PY - 2020/8
Y1 - 2020/8
N2 - This article introduces a rotary semiactive variable stiffness (VS) device, including its system design and model validation. A variable damping (VD) device and springs can form mechanical networks with specific topologies, and the VD device can control the equivalent stiffness of the network by varying its damping. The proposed rotary electromagnetic VS device consists of an electromagnetic VD device and a torsion spring, which are in series, while a planetary gear reducer is used to amplify the torque output of the VS device. The models of the electromagnetic VD and VS devices are both built and validated with tests. Then, a seat suspension applies the VS device by installing the device in the center of its scissors structure. Bump and random vibration experiments are implemented to validate the effectiveness of the proposed VS system for seat suspension vibration control. The new system has merits in controllability and energy efficiency. It is easier to design the controller than the conventional one with magnetorheological damper due to the linear damping of the electromagnetic VD device. Besides, the system energy consumption is low and has energy harvesting capability. The proposed semiactive electromagnetic VS device also has potential in other practical applicationss.
AB - This article introduces a rotary semiactive variable stiffness (VS) device, including its system design and model validation. A variable damping (VD) device and springs can form mechanical networks with specific topologies, and the VD device can control the equivalent stiffness of the network by varying its damping. The proposed rotary electromagnetic VS device consists of an electromagnetic VD device and a torsion spring, which are in series, while a planetary gear reducer is used to amplify the torque output of the VS device. The models of the electromagnetic VD and VS devices are both built and validated with tests. Then, a seat suspension applies the VS device by installing the device in the center of its scissors structure. Bump and random vibration experiments are implemented to validate the effectiveness of the proposed VS system for seat suspension vibration control. The new system has merits in controllability and energy efficiency. It is easier to design the controller than the conventional one with magnetorheological damper due to the linear damping of the electromagnetic VD device. Besides, the system energy consumption is low and has energy harvesting capability. The proposed semiactive electromagnetic VS device also has potential in other practical applicationss.
KW - Electromagnetic device
KW - seat suspension
KW - semiactive control
KW - variable damping (VD)
KW - variable stiffness (VS)
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U2 - 10.1109/TIE.2019.2936994
DO - 10.1109/TIE.2019.2936994
M3 - Article
AN - SCOPUS:85083438437
SN - 0278-0046
VL - 67
SP - 6773
EP - 6784
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 8
M1 - 8818640
ER -
