A rotary self-sensing magnetorheological damper based on triboelectric nanogenerator
Author(s): |
Shiyu Zhao
Rongchang Hu Guanghui Han Huaxia Deng Mengchao Ma Xiang Zhong Xinglong Gong |
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Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 18 July 2024, n. 8, v. 33 |
Page(s): | 085024 |
DOI: | 10.1088/1361-665x/ad5d32 |
Abstract: |
A rotary self-sensing magnetorheological (MR) damper(RSMRD) based on a triboelectric nanogenerator is proposed in this study, which can provide variable torque and state self-sensing without a power supply. Compared with traditional self-sensing devices, the sensing part of RSMRD has the advantages of small size, no external power supply, and good low-frequency response. The feasibility of the angular velocity self-sensing (AVS) function is verified through theoretical derivation and experimental verification. The experimental results demonstrate a linear relationship between the output voltage generated by the AVS component and the rotational speed of the rotating shaft. Additionally, the torque characteristics of the rotary self-sensing MR damper are tested, revealing a torque generation of approximately 9.26 Nm at a current of 1.6 A. Furthermore, a fuzzy control algorithm for vehicle braking is proposed, based on the model parameters of RSMRD. The simulink software is used to establish a dynamic model of 1/4 car braking, with an initial braking speed of 15 m s−1. The results indicate that the vehicle comes to a complete stop after 1.64 s, with a braking distance of 10.93 m. Throughout the braking process, the vehicle slip rate remains close to the optimal slip rate of 0.2. |
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data sheet - Reference-ID
10790717 - Published on:
01/09/2024 - Last updated on:
01/09/2024