Modeling and validation of multifield coupled self-sensing characteristics of magnetorheological elastomer for vibration isolators

Li, Rui; Gou, Xin; Zhou, Mengjiao; Yang, Pingan; Li, Penghua; Shou, Mengjie; Liao, Changrong; Wang, Xiaojie

doi:10.1016/j.matdes.2022.110636

Cited by 9 publications

(9 citation statements)

References 35 publications

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“…Various forms of physical actuation methods exist, including thermal actuation [94,95,204,205], electrical actuation [206][207][208], magnetic actuation [52][53][54]209], optical actuation [210,211], humiditydriven actuation [212][213][214], and acoustic actuation [215][216][217]. Within the realm of robotic grippers, these actuation methods are implemented through specific means, such as DEs actuation [96, 147-149, 218, 219], ionic polymer-metal composites (IPMC) actuation [92,99,150,[220][221][222][223][224], SMA actuation [10,97,190,[225][226][227][228][229][230][231][232][233][234][235][236], SMPs actuation [25,76,100,228,[237]…”

Section: Physicochemical Actuationsmentioning

confidence: 99%

“…Specifically, we have categorized them into four distinct grasping modes: points contact (PC), lines contact (LC), surfaces contact (SC), and full-bodies contact (FBC). PC characterizes the first mode, achieving stable grasping of objects through adhesion [25][26][27][28][29][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58]. The gripper can only adaptively conform to the object without any motion control.…”

Section: Introductionmentioning

confidence: 99%

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Variable stiffness soft robotic gripper: design, development, and prospects

Shan,

Zhao,

Wang

et al. 2023

Bioinspir. Biomim.

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The advent of variable stiffness soft robotic grippers furnishes a conduit for exploration and manipulation within uncharted, non-structured environments. The paper provides a comprehensive review of the necessary technologies for the configuration design of soft robotic grippers with variable stiffness, serving as a reference for innovative gripper design. The design of variable stiffness soft robotic grippers typically encompasses the design of soft robotic grippers and variable stiffness modules.To adapt to unfamiliar environments and grasp unknown objects, a categorization and discussion have been undertaken based on the contact and motion manifestations between the gripper and the things across various dimensions: points contact (PC), lines contact (LC), surfaces contact (SC), and full-bodies contact (FBC), elucidating the advantages and characteristics of each gripping type. Furthermore, when designing soft robotic grippers, we must consider the effectiveness of object grasping methods but also the applicability of the actuation in the target environment. The actuation is the propelling force behind the gripping motion, holding utmost significance in shaping the structure of the gripper. Given the challenge of matching the actuation of robotic grippers with the target scenario, we reviewed the actuation of soft robotic grippers. We analyzed the strengths and limitations of various soft actuation, providing insights into the actuation design for soft robotic grippers. As a crucial technique for variable stiffness soft robotic grippers, variable stiffness technology can effectively address issues such as poor load-bearing capacity and instability caused by the softness of materials. Through a retrospective analysis of variable stiffness theory, we comprehensively introduce the development of variable stiffness theory in soft robotic grippers and showcase the application of variable stiffness grasping technology through specific case studies. Finally, we discuss the future prospects of variable stiffness grasping robots from several perspectives of applications and technologies.

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Section: Physicochemical Actuationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Variable stiffness soft robotic gripper: design, development, and prospects

Shan,

Zhao,

Wang

et al. 2023

Bioinspir. Biomim.

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“…Vibration isolators are capable of isolating an object or equipment from the source of vibrations. 57,58 Through the application of MREs, the mechanical properties can be tuned in real-time via an external magnetic field. Zhu et al investigated both experimental and modeling studies of the magnetic field-induced viscoelastic properties of MRE act under different loading cases conditions.…”

Section: Absorter Isolationmentioning

confidence: 99%

A review on magnetorheological elastomers

Liu¹

2023

AETR

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Magnetorheological Elastomers (MREs) are a type of magnetorheological (MR) material, which is a combination of magnetic particles and a soft elastic matrix. As a new class of intelligent material, MREs possess controllability, reversibility, rapid response as well as stability under magnetic fields. Thanks to these characteristics, MREs have found a wide range of applications in many fields, such as vibration absorbers, absorber isolation, pumps, and soft robots in recent years. All these applications will be discussed in this review. Additionally, this paper will describe the effects of particles, matrices, additives, and synthesis on the performance of MREs.

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“…In addition to the MR effect, MREs presents the resistance change when an external load or magnetic field is applied, which are often referred to as piezoresistive effect and magnetoresistive effect, respectively. By combining the MR effect, developing the MREs-based passive control devices with selfsensing capability, such as self-sensing bearing and vibration absorber, have attracted much attention [18,32,33]. The previous works have revealed that MREs with the higher magnetic particle content and the chain-like particle arrangement show the lower resistivity [28,[34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…While the addition of Gr particles will result in a reduced MR effect, which is undesired for the application of MRE materials [22,39]. In recent years, the nano-sized conductive fillers, such as CB [18,40], grapheme [38] and CNTs [27,32,41,43,44] were used to enhance the conductivity of MREs. Their high aspect ratio can lead to the formation of the percolating conductive networks with a small content of conductive fillers, thus leading to the high sensitivity of conductivity to the mechanical loads and external magnetic field [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Magnetorheological effect and sensing performance of graphite sheet filled PDMS based magnetorheological elastomer under compression

Qin,

Zhang,

Guo

et al. 2023

Smart Mater. Struct.

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In order to study the effect of large-sized graphite (Gr) sheet on the magnetorheological (MR) effect and sensing characteristics of MR elastomer (MRE), isotropic and anisotropic Gr-filled MRE samples with different carbonyl iron powder (CIP) contents were fabricated. The effect of Gr sheet on the microstructure, MR effect and sensing characteristics of the MRE samples were experimentally tested, and the mechanisms behind discussed. The results show that in the anisotropic MRE samples, the addition of Gr sheets results in the short particle chains formed between Gr sheets, thus leading to the high MR effect and low resistivity than those of isotropic counterparts. The non-monotonic resistivity responses of the Gr-filled MRE samples during compression were observed owing to the interlayer separation of Gr sheets and the reconstruction of conductive network. A higher piezoresistive response was observed from the isotropic Gr-filled MRE sample filled with the CIP content below the percolation threshold. The resistivities of the Gr-filled MRE samples decline with increasing the applied magnetic field. The isotropic sample filled with lower CIP content shows the higher magnetoresistive effect from the view point of absolute change in resistivity. While for the relative change in resistivity, the anisotropic sample filled with the higher CIP content has the higher magnetoresistive effect.

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Modeling and validation of multifield coupled self-sensing characteristics of magnetorheological elastomer for vibration isolators

Cited by 9 publications

References 35 publications

Variable stiffness soft robotic gripper: design, development, and prospects

Variable stiffness soft robotic gripper: design, development, and prospects

A review on magnetorheological elastomers

Magnetorheological effect and sensing performance of graphite sheet filled PDMS based magnetorheological elastomer under compression

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