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学者姓名:陈花玲

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Legged-wheeled small robot capable of terrain-adaptive locomotion via a soft actuator EI
期刊论文 | 2021 , 3 (1) | Engineering Research Express
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Abstract :

The small-scale robot using soft materials features extraordinary compliance and a large amount of degree of freedoms, but its nonlinearity in material increases the system complexity for control strategy. In this paper, as inspired by the skiing-sport, a lightweight locomotion robot with a rigid poking pole is designed and driven by an artificial muscle, a conical dielectric elastomer actuator (DEA). The poking mechanism transmits the stroke of DEA into robot motion, contributing the material compliance to the capability of terrain adaptivity in the robot. The combination of a soft actuator and a rigid transmission mechanism lowers the complexity in the robotic kinetics and increases the loading capability for device carrying. Experiments verify the locomotion on the dimple and wavy pavement as well as clambering a slope. This robot offers performances including: (i) a maximum speed of 64.1mm(0.43 body length) per second; (ii) a loading capability of 7.7 times of its weight; (iii) a steering angle of 25° at a radius of 18 cm. © 2021 IOP Publishing Ltd.

Keyword :

Robots Electroactive polymer actuators Compliance control Sports

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GB/T 7714 Tang, Chao , Li, Bo , Li, Zhiqiang et al. Legged-wheeled small robot capable of terrain-adaptive locomotion via a soft actuator [J]. | Engineering Research Express , 2021 , 3 (1) .
MLA Tang, Chao et al. "Legged-wheeled small robot capable of terrain-adaptive locomotion via a soft actuator" . | Engineering Research Express 3 . 1 (2021) .
APA Tang, Chao , Li, Bo , Li, Zhiqiang , Ma, Wentao , Liu, Lei , Chen, Hualing et al. Legged-wheeled small robot capable of terrain-adaptive locomotion via a soft actuator . | Engineering Research Express , 2021 , 3 (1) .
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Highly efficient structure design of bending stacking actuators based on IPMC with large output force EI SCIE
期刊论文 | 2021 , 30 (7) | SMART MATERIALS AND STRUCTURES
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Abstract :

Ionic electroactive polymers (iEAPs) are electroactive polymers that have been used as artificial muscles and have broad application potential. Although iEAPs show large bending deformation under low electric stimulus, the low output force significantly restricts their application. Based on an ionic polymer-metal composite (IPMC) actuator, we proposed a bending stacking structure principle which adapts the bending deformation cooperation conditions. According to the principle, the width stacking structure and thickness stacking structure were designed that can improve the output force, maintain a high stacking efficiency, and eliminate degradation to the deformation ability. The advantages of the proposed stacking structures were identified using theoretical analysis and experimental verification based on IPMC actuators. Compared with an ultra-wide actuator, the wide stacking structure can resist undesirable width deformation. Compared with a traditional stacking structure, the proposed thickness stacking structures solved the bending deformation coordination problem to get a high stacking efficiency and significantly enhance the output force.

Keyword :

stacking structure ionic polymer-metal composites (IPMCs) large output force high efficiency ionic electroactive polymer (iEAP)

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GB/T 7714 Bian, Changsheng , Zhu, Zicai , Bai, Wanfa et al. Highly efficient structure design of bending stacking actuators based on IPMC with large output force [J]. | SMART MATERIALS AND STRUCTURES , 2021 , 30 (7) .
MLA Bian, Changsheng et al. "Highly efficient structure design of bending stacking actuators based on IPMC with large output force" . | SMART MATERIALS AND STRUCTURES 30 . 7 (2021) .
APA Bian, Changsheng , Zhu, Zicai , Bai, Wanfa , Chen, Hualing . Highly efficient structure design of bending stacking actuators based on IPMC with large output force . | SMART MATERIALS AND STRUCTURES , 2021 , 30 (7) .
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Modeling and parametric study on DE-based vibro-impact energy harvesters for performance improvement EI SCIE
期刊论文 | 2021 , 242 | ENERGY CONVERSION AND MANAGEMENT
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Abstract :

This paper develops a dynamic electromechanical coupling model to investigate the energy harvesting (EH) performance of the vibro-impact (VI) energy harvester comprising a cylindrical capsule, an internal free moving ball, and two dielectric elastomer (DE) membranes at both ends of the capsule. The developed model can describe the electromechanical properties of the collision between the ball and the membrane, which is verified by the existing experimental data. On this basis, the effect of system parameters, such as the mass and the radium of the ball, the internal radium and the length of the capsule, and the pre-stretch ratio of DEs, on the average power density of the energy harvester is also studied under diverse external stimuli including the inclined angle and the excitation frequency. The results show that at the small excitation frequency, the EH performance of the energy harvester can be improved by increasing the pre-stretch ratio of membranes and the mass of the ball and decreasing the radium of the ball and the internal radium of the capsule. The conclusions can help provide a guide for the optimal design of the energy harvester in the practical application so as to improve the EH performance.

Keyword :

Dielectric elastomer generator Energy harvesting Electromechanical coupling property Dielectric elastomer

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GB/T 7714 Fan, Peng , Luo, Bin , Zhu, Zicai et al. Modeling and parametric study on DE-based vibro-impact energy harvesters for performance improvement [J]. | ENERGY CONVERSION AND MANAGEMENT , 2021 , 242 .
MLA Fan, Peng et al. "Modeling and parametric study on DE-based vibro-impact energy harvesters for performance improvement" . | ENERGY CONVERSION AND MANAGEMENT 242 (2021) .
APA Fan, Peng , Luo, Bin , Zhu, Zicai , Chen, Hualing . Modeling and parametric study on DE-based vibro-impact energy harvesters for performance improvement . | ENERGY CONVERSION AND MANAGEMENT , 2021 , 242 .
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Direct Writing Corrugated PVC Gel Artificial Muscle via Multi-Material Printing Processes SCIE PubMed
期刊论文 | 2021 , 13 (16) | POLYMERS
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Abstract :

Electroactive PVC gel is a new artificial muscle material with good performance that can mimic the movement of biological muscle in an electric field. However, traditional manufacturing methods, such as casting, prevent the broad application of this promising material because they cannot achieve the integration of the PVC gel electrode and core layer, and at the same time, it is difficult to create complex and diverse structures. In this study, a multi-material, integrated direct writing method is proposed to fabricate corrugated PVC gel artificial muscle. Inks with suitable rheological properties were developed for printing four functional layers, including core layers, electrode layers, sacrificial layers, and insulating layers, with different characteristics. The curing conditions of the printed CNT/SMP inks under different applied conditions were also discussed. The structural parameters were optimized to improve the actuating performance of the PVC gel artificial muscle. The corrugated PVC gel with a span of 1.6 mm had the best actuating performance. Finally, we printed three layers of corrugated PVC gel artificial muscle with good actuating performance. The proposed method can help to solve the inherent shortcomings of traditional manufacturing methods of PVC gel actuators. The printed structures have potential applications in many fields, such as soft robotics and flexible electronic devices.

Keyword :

rheological behavior direct writing PVC gel artificial muscle integrated printing

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GB/T 7714 Luo, Bin , Zhong, Yiding , Chen, Hualing et al. Direct Writing Corrugated PVC Gel Artificial Muscle via Multi-Material Printing Processes [J]. | POLYMERS , 2021 , 13 (16) .
MLA Luo, Bin et al. "Direct Writing Corrugated PVC Gel Artificial Muscle via Multi-Material Printing Processes" . | POLYMERS 13 . 16 (2021) .
APA Luo, Bin , Zhong, Yiding , Chen, Hualing , Zhu, Zicai , Wang, Yanjie . Direct Writing Corrugated PVC Gel Artificial Muscle via Multi-Material Printing Processes . | POLYMERS , 2021 , 13 (16) .
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A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing EI SCIE
期刊论文 | 2021 , 123 | Materials Science in Semiconductor Processing
WoS CC Cited Count: 2
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Abstract :

The conventional synthesis and forming process methods of commercialized thermoelectric materials and thermoelectric devices are energy and time consuming. Fortunately, advanced 3D printing techniques enable simplification for the rapid fabrication of thermoelectric materials. Herein, we report a new synthesis method of Sb2Te3 by selective laser melting (SLM) printing technique. A mixture of individual elemental powder of Sb and Te serves as starting materials for the SLM process. The effect of the high laser energy density on the synthesized Sb2Te3 structure and thermoelectric performance is also investigated, and the optimal process parameters are determined. The phase transition process for the Sb/Te powder during SLM is imitated by performing a thermogravimetric analysis (TGA) simultaneously. The power factor of the ingot prepared by SLM increases up to 19 μW/(cm K2) at 50 °C. These results indicate that SLM can effectively produce Sb2Te3-based materials. This work opens a new route for the design and synthesis of thermoelectric materials and corresponding devices. © 2020

Keyword :

Selective laser melting Melting Thermoelectricity Antimony compounds Thermogravimetric analysis Ingots Thermoelectric equipment

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GB/T 7714 Shi, Jianxu , Chen, Xiaoming , Wang, Wanjun et al. A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing [J]. | Materials Science in Semiconductor Processing , 2021 , 123 .
MLA Shi, Jianxu et al. "A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing" . | Materials Science in Semiconductor Processing 123 (2021) .
APA Shi, Jianxu , Chen, Xiaoming , Wang, Wanjun , Chen, Hualing . A new rapid synthesis of thermoelectric Sb2Te3 ingots using selective laser melting 3D printing . | Materials Science in Semiconductor Processing , 2021 , 123 .
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Predicting energy harvesting performance of a random nonlinear dielectric elastomer pendulum EI SCIE
期刊论文 | 2021 , 289 | Applied Energy
WoS CC Cited Count: 2
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Abstract :

This paper investigates the energy harvesting (EH) performance of a nonlinear dielectric elastomer pendulum (DEP) under the random narrowband excitation. The DEP that can convert the vibration energy into electrical energy consists of a dielectric elastomer membrane with a mass, which is similar to a spring pendulum. A dynamic analysis model of the nonlinear electromechanical coupling behavior of the DEP under the random narrowband excitation is developed. A prototype of the DEP is designed to evaluate the developed dynamic model, which shows the good agreement. On this basis, the stochastic dynamic behavior of the DEP is analyzed by changing the intensity, the power spectrum density, and the upper limiting frequency of the random narrowband excitation. The EH performance of the DEP under the random narrowband excitation is also studied for diverse system parameters, including the length of the dielectric elastomer membrane, the mass of the DEP, and the load resistance. The conclusions can help guide the design of the DEP in the random vibration environment to improve the EH performance. © 2021 Elsevier Ltd

Keyword :

Electromechanical coupling Electric excitation Dielectric devices Stochastic systems Plastics Elastomers Pendulums Energy harvesting

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GB/T 7714 Fan, Peng , Zhu, Liangquan , Zhu, Zicai et al. Predicting energy harvesting performance of a random nonlinear dielectric elastomer pendulum [J]. | Applied Energy , 2021 , 289 .
MLA Fan, Peng et al. "Predicting energy harvesting performance of a random nonlinear dielectric elastomer pendulum" . | Applied Energy 289 (2021) .
APA Fan, Peng , Zhu, Liangquan , Zhu, Zicai , Chen, Hualing , Chen, Wei , Hu, Hong . Predicting energy harvesting performance of a random nonlinear dielectric elastomer pendulum . | Applied Energy , 2021 , 289 .
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Study on the bio-inspired electrochromic device enabled via dielectric elastomer actuator EI SCIE
期刊论文 | 2021 , 111 | Optical Materials
WoS CC Cited Count: 3
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Abstract :

As a promising research field, electrochromic devices have attracted researcher's attention because of their dynamic display capabilities, high brightness, and convenience of electric signals. Among all the electrochromic modes, the use of electroactive actuators to produce color change is one of the important means. In view of the characteristics of dielectric elastomer (DE) materials such as rapid response and large deformation under electric signal, dielectric elastomer actuators (DEAs) were prepared and explored for their applications in biomedicine, aerospace, intelligent robotics and other fields. In this paper, inspired by the skin of chameleons, a kind of electrochromic device enabled via dielectric elastomer actuator (EDDEA) is prepared by integrating the stretchable photonic crystals (SPCs) with DEAs. The SPCs can achieve color changes in visible light range and maintain stable performance during multiple working cycles. The prepared EDDEA can produce strain under an electric field, which in turn causes color changes. In addition, the EDDEA can be used to display and measure the strain range of the DEA during actuating process under the excitation of electric field. The results demonstrate that the prepared EDDEA is a fully flexible, highly integrated electrochromic device, which can produce a wide range of color change under electric field. Meanwhile, this device provides potential application value in the strain range control of DEAs. © 2020 Elsevier B.V.

Keyword :

Color Electric excitation Electrochromic devices Display devices Plastics Colorimetry Electric fields Electroactive polymer actuators Intelligent robots Elastomers Dielectric materials Electrochromism Biomimetics

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GB/T 7714 Zhao, Pengfei , Cai, Yong , Liu, Chen et al. Study on the bio-inspired electrochromic device enabled via dielectric elastomer actuator [J]. | Optical Materials , 2021 , 111 .
MLA Zhao, Pengfei et al. "Study on the bio-inspired electrochromic device enabled via dielectric elastomer actuator" . | Optical Materials 111 (2021) .
APA Zhao, Pengfei , Cai, Yong , Liu, Chen , Ge, Dengteng , Li, Bo , Chen, Hualing . Study on the bio-inspired electrochromic device enabled via dielectric elastomer actuator . | Optical Materials , 2021 , 111 .
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Mechanochromics of stretchable nano metasurfaces: non-close-packed hexagonal lattices and tunable structural coloration EI SCIE
期刊论文 | 2020 , 13 (1) | APPLIED PHYSICS EXPRESS | IF: 2.895
WoS CC Cited Count: 3
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Abstract :

Under the bio-mechanism of a chameleon's color change, in this letter, a 2D nano metasurface, mechanical-strain-actuated photonic crystal, is proposed. The lattice, a nano hexagon with non-close-packed cylinder holes, is analyzed via a mechanochromic coupling model and plane wave transmission to verify the optical structural color in strain. The metasurface material was fabricated by soft lithography on a stretchable substrate. The strain versus reflectivity spectra were measured, showing a full visible range color change, at a strain of 29%. The RGB colors in the strained state were maintained after 2000 repeated loading/unloading cycles, illustrating fatigue insensitivity. (c) 2019 The Japan Society of Applied Physics

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GB/T 7714 Li, Bo , Zhao, Pengfei , Ma, Wentao et al. Mechanochromics of stretchable nano metasurfaces: non-close-packed hexagonal lattices and tunable structural coloration [J]. | APPLIED PHYSICS EXPRESS , 2020 , 13 (1) .
MLA Li, Bo et al. "Mechanochromics of stretchable nano metasurfaces: non-close-packed hexagonal lattices and tunable structural coloration" . | APPLIED PHYSICS EXPRESS 13 . 1 (2020) .
APA Li, Bo , Zhao, Pengfei , Ma, Wentao , Sun, Ya , Chen, Hualing , Chen, Guimin . Mechanochromics of stretchable nano metasurfaces: non-close-packed hexagonal lattices and tunable structural coloration . | APPLIED PHYSICS EXPRESS , 2020 , 13 (1) .
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Nonlinear out-of-plane resonation of a circular dielectric elastomer EI SCIE Scopus
期刊论文 | 2020 , 29 (4) | Smart Materials and Structures | IF: 3.585
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Abstract :

A dielectric elastomer (DE) membrane can generate nonlinear out-of-plane vibrations under an alternating voltage. The generation mechanism and vibration characteristics were investigated in this paper. Multi-order superharmonic resonance occurred as the AC voltage increased. After the introduction of DC offset voltage, both superharmonic and subharmonic resonance occurred. The frequency characteristics of the superharmonic resonance with and without DC voltage were different. The nonlinear out-of-plane vibration characteristics can be potentially harnessed in a DE vibration-driven system. © 2020 IOP Publishing Ltd.

Keyword :

Vibration analysis Elastomers Resonance Plastics

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GB/T 7714 Tang, Chao , Li, Bo , Liu, Lei et al. Nonlinear out-of-plane resonation of a circular dielectric elastomer [J]. | Smart Materials and Structures , 2020 , 29 (4) .
MLA Tang, Chao et al. "Nonlinear out-of-plane resonation of a circular dielectric elastomer" . | Smart Materials and Structures 29 . 4 (2020) .
APA Tang, Chao , Li, Bo , Liu, Lei , Ge, Shuzhi Sam , Shui, Langquan , Chen, Hualing . Nonlinear out-of-plane resonation of a circular dielectric elastomer . | Smart Materials and Structures , 2020 , 29 (4) .
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Electro-pneumatic dielectric elastomer actuator incorporating tunable bending stiffness EI
期刊论文 | 2020 , 2 (2) | Physical Review Research
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The superior ability of soft robotic systems is their good adaptability to complicated external environments without damaging themselves and their surroundings. Dielectric elastomers (DEs) are known as artificial muscles for soft actuations; however, rigid frames are commonly required to sustain the prestretch, highly limiting flexibility designs. Moreover, under high actuation voltage, DEs are susceptible to electrical breakdowns. Furthermore, pure-soft actuators cannot sustain deformations under external loads. Therefore, based on the fiber-reinforced DE films, we develop a cylindrical freestanding electro-pneumatic DE actuator (EPDEA), which combines the advantages of pneumatic and electric actuators. The finite element model (FEM) simulation is also performed to study the combined deformations (a combination of elongation and bending) of EPDEAs. Due to fiber reinforcement, we introduce the mechanical anisotropies in DE films, and realize the large directional bending deformations (>180°) and output forces under the electro-pneumatic actuation. Fiber-jamming suits (FJSs) are simultaneously developed for the EPDEA to obtain the variable stiffness capability. The EPDEA with the FJS unit can hold the end position under a weight of 200 g (which is almost 4 times the weight of EPDEA). The effects of structural parameters and supporting pressure on the actuation and stiffness tuning the performance of EPDEA are also investigated. © 2020 American Physical Society.

Keyword :

Electroactive polymer actuators Pneumatics Pneumatic actuators Stiffness Deformation Elastomers

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GB/T 7714 Liu, Lei , Zhang, Junshi , Luo, Meng et al. Electro-pneumatic dielectric elastomer actuator incorporating tunable bending stiffness [J]. | Physical Review Research , 2020 , 2 (2) .
MLA Liu, Lei et al. "Electro-pneumatic dielectric elastomer actuator incorporating tunable bending stiffness" . | Physical Review Research 2 . 2 (2020) .
APA Liu, Lei , Zhang, Junshi , Luo, Meng , Li, Bo , Tang, Chao , Chen, Hualing et al. Electro-pneumatic dielectric elastomer actuator incorporating tunable bending stiffness . | Physical Review Research , 2020 , 2 (2) .
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