Development of a self-sensing magnetorheological damper with magnets in-line coil mechanism

Hu, Guoliang; Lu, Yun; Sun, Shuaishuai; Li, Weihua

doi:10.1016/j.sna.2017.01.002

Cited by 26 publications

(13 citation statements)

References 24 publications

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“…Other studies [12], [13], [14] have also revealed selfsensing properties for the MR valves, observing an induced voltage on the coil. Nevertheless, either they only focus on displacement and velocity sensing or the have not managed to quantify the self-sensing phenomena with regards to pressure variations.…”

Section: Introductionmentioning

confidence: 91%

Design optimization of Miniature Magnetorheological Valves with Self-Sensing Capabilities Used for a Wearable Medical Application

Ntella

Duong

Civet

et al. 2020

2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)

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Magnetorheological (MR) fluids are materials characterized as "intelligent" since their rheological properties may be controlled by the excitation of an external magnetic field. The application of the latter brings the fluid from a liquid to a semi-solid state. Due to their properties, these materials are widely used, among others, in biomedical applications. In the present work, multiple MR valves are incorporated as pressure limiters in a smart biomedical insole for diabetic patients. The diabetics are affected by high plantar pressures that cause ulceration and frequently, as a consequence of ulceration, lower extremity amputation. This novel insole aims at the active plantar pressure offloading. Thus, considering the small size of the insole, the number of the valves, as well as the high plantar pressures that reach up to 1 MPa on diabetic feet, a study is performed on optimizing the design of the MR valve, exploiting the Design of Experiments (DoE) techniques. Moreover, a testbench is presented for the examination of pressure self-sensing capabilities of the valves, with a future goal to integrate them in the design optimization and acquire a sensorless system.

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Section: Introductionmentioning

confidence: 91%

Design optimization of Miniature Magnetorheological Valves with Self-Sensing Capabilities Used for a Wearable Medical Application

Ntella

Duong

Civet

et al. 2020

2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)

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“…Then, Ahamed et al (2016) performed a review of energy harvesting MR dampers. Recently, a self-sensing MR damper was developed and experimentally validated (Hu et al, 2017). In terms of vibration control of MR dampers, the fuzzy control theory is generally used (Yang and Cai, 2015; Liem and Ahn, 2016; Tang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Modeling of a Bingham model of a magnetorheological damper considering stochastic uncertainties in their geometric variables

Chen¹,

Yu²,

Wang³

et al. 2020

Journal of Theoretical and Applied Mechanics

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Stochastic uncertainty theory is used to develop a new Bingham model of magnetorheological dampers superior to the existing model. Some input variables are defined as stochastic variables by the stochastic factor method, and the stochastic Bingham model is developed by the algebraic synthesis method. Curves of the damping force obtained by the stochastic Bingham model and the Bingham model in the literature are compared with experimental results, revealing that the curves obtained by the stochastic Bingham model are much closer to the experimental curves. Therefore, we confirm that the stochastic Bingham model is superior to the model from the literature.

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“…Guan et al (2015) proposed a novel compact MR damper with self-powered capability and combined a ball-screw-based generation device, which could act as a velocity sensor in open-circuit state. Hu et al (2015a, 2015b, 2017) proposed a displacement self-induced MR damper structure and a self-sensing in-line coil mechanism; results indicated that both models have the ability to output displacement-dependent voltages and stable damping force simultaneously. Sun et al (2015) developed a self-sensing magnetorheological elastomer (MRE) adaptive tuned vibration absorber and tested the performance of the self-sensing capability from 3 A, 4.8 Hz to 11.3 Hz, and the result showed the absorber has higher efficiency than passive system.…”

Section: Introductionmentioning

confidence: 99%

A novel velocity self-sensing magnetorheological damper: Design, fabricate, and experimental analysis

Guan

Huang

2017

Journal of Intelligent Material Systems and Structures

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This article presents the development of a novel magnetorheological damper with velocity self-sensing capability. The velocity self-sensing mechanism, based on the optical tracking technology and numerical circuit technology, was adopted. The configuration and work principle of the velocity self-sensing magnetorheological damper were presented. The self-sensing circuits, built with optical mouse sensor and microcontrollers, were integrated into the hollow upper lid. The hollow upper lid provides a suitable place for the self-sensing circuits, can be installed and disassembled easily, and can be maintained efficiently. The velocity self-sensing magnetorheological damper prototype with 10 kN capacity was theoretically analyzed, fabricated, and investigated. Finally, the damping performance, self-sensing performance, and self-sensing control capability were tested and analyzed. The results indicated that self-sensing velocity unit has high accurate monitoring capability over a wide range of working conditions. The velocity self-sensing magnetorheological damper–based control system has sufficient ability to control the magnetorheological damper.

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Development of a self-sensing magnetorheological damper with magnets in-line coil mechanism

Cited by 26 publications

References 24 publications

Design optimization of Miniature Magnetorheological Valves with Self-Sensing Capabilities Used for a Wearable Medical Application

Design optimization of Miniature Magnetorheological Valves with Self-Sensing Capabilities Used for a Wearable Medical Application

Modeling of a Bingham model of a magnetorheological damper considering stochastic uncertainties in their geometric variables

A novel velocity self-sensing magnetorheological damper: Design, fabricate, and experimental analysis

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