Epidermal Electronics: Cephalopod-Inspired Miniaturized Suction Cups for Smart Medical Skin (Adv. Healthcare Mater. 1/2016)

2016 ◽  
Vol 5 (1) ◽  
pp. 186-186
Author(s):  
Moon Kee Choi ◽  
Ok Kyu Park ◽  
Changsoon Choi ◽  
Shutao Qiao ◽  
Roozbeh Ghaffari ◽  
...  
Keyword(s):  
Suction Cups ◽  
Epidermal Electronics

scholarly journals Bio-inspired Miniature Suction Cups Actuated by Shape Memory Alloy

10.5772/7228 ◽  
2009 ◽  
Vol 6 (3) ◽  
pp. 29 ◽  
Author(s):  
Hu Bing-Shan ◽  
Wang Li-Wen ◽  
Fu Zhuang ◽  
Zhao Yan-zheng
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Analytical Model ◽  
Basic Structure ◽  
Thin Elastic Plate ◽  
Climbing Robots ◽  
Suction Cup ◽  
Sma Actuator ◽  
Suction Cups ◽  
Pressure Suction

Wall climbing robots using negative pressure suction always employ air pumps which have great noise and large volume. Two prototypes of bio-inspired miniature suction cup actuated by shape memory alloy (SMA) are designed based on studying characteristics of biologic suction apparatuses, and the suction cups in this paper can be used as adhesion mechanisms for miniature wall climbing robots without air pumps. The first prototype with a two-way shape memory effect (TWSME) extension TiNi spring imitates the piston structure of the stalked sucker; the second one actuated by a one way SMA actuator with a bias has a basic structure of stiff margin, guiding element, leader and elastic element. Analytical model of the second prototype is founded considering the constitutive model of the SMA actuator, the deflection of the thin elastic plate under compound load and the thermo-dynamic model of the sealed air cavity. Experiments are done to test their suction characteristics, and the analytical model of the second prototype is simulated on Matlab/simulink platform and validated by experiments.

Analytical modelling of suction cups used for window-cleaning robots

Vacuum ◽  
2006 ◽  
Vol 80 (6) ◽  
pp. 593-598 ◽  
Author(s):  
Jihong Liu ◽  
K. Tanaka ◽  
L.M. Bao ◽  
I. Yamaura
Keyword(s):  
Analytical Modelling ◽  
Suction Cups ◽  
Cleaning Robots

scholarly journals Soft Hybrid Suction Cup Capable of Sticking to Various Objects and Environments

Actuators ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 50
Author(s):  
Hideyuki Tsukagoshi ◽  
Yuichi Osada
Keyword(s):  
Vertical Direction ◽  
Check Valve ◽  
Adhesive Force ◽  
Outer Diameter ◽  
Shear Direction ◽  
Concrete Walls ◽  
Suction Force ◽  
Suction Cup ◽  
Valve Function ◽  
Suction Cups

A universal suction cup that can stick to various objects expands the areas in which robots can work. However, the size, shape, and surface roughness of objects to which conventional suction cups can stick are limited. To overcome this challenge, we propose a new hybrid suction cup structure that uses the adhesive force of sticky gel and the suction force of negative pressure. In addition, a flexible and thin pneumatic balloon actuator with a check valve function is installed in the interior, enabling the controllable detachment from objects. The prototype has an outer diameter of 55 mm, a weight of 18.8 g, and generates an adsorption force of 80 N in the vertical direction and 60 N in the shear direction on porous walls where conventional suction cups struggle to adsorb. We confirmed that parts smaller than the suction cup and fragile potato chips are adsorbed by the prototype. Finally, the effectiveness of the proposed method is verified through experiments in which a drone with the prototypes can be attached to and detached from concrete walls and ceilings while flying; the possibility of adsorption to dusty and wet plates is discussed.

Aspects Regarding the Control of a Robot with Vertical Displacement and Attachment System by Suction Cups

2021 ◽  
Author(s):  
Tudor Catalin Apostolescu ◽  
Laurentiu Adrian Cartal ◽  
Ioana Udrea ◽  
Georgeta Ionascu ◽  
Lucian Bogatu
Keyword(s):  
Vertical Displacement ◽  
Suction Cups

scholarly journals Epidermal Electronics: Wireless, Battery-Free Epidermal Electronics for Continuous, Quantitative, Multimodal Thermal Characterization of Skin (Small 47/2018)

Small ◽  
2018 ◽  
Vol 14 (47) ◽  
pp. 1870226 ◽  
Author(s):  
Siddharth R. Krishnan ◽  
Chun-Ju Su ◽  
Zhaoqian Xie ◽  
Manish Patel ◽  
Surabhi R. Madhvapathy ◽  
...  
Keyword(s):  
Thermal Characterization ◽  
Epidermal Electronics

scholarly journals Octopus-Inspired Innovative Suction Cups

2013 ◽  
pp. 368-370 ◽  
Author(s):  
Maurizio Follador ◽  
Francesca Tramacere ◽  
Lucie Viry ◽  
Matteo Cianchetti ◽  
Lucia Beccai ◽  
...  
Keyword(s):  
Suction Cups

Mechanics of Interfacial Delamination in Epidermal Electronics Systems

2013 ◽  
Vol 81 (4) ◽  
Author(s):  
Huanyu Cheng ◽  
Shuodao Wang
Keyword(s):  
Skin Surface ◽  
External Loading ◽  
Initial Contact ◽  
Intimate Contact ◽  
Interfacial Delamination ◽  
Future Design ◽  
Device Optimization ◽  
Electrophysiological Signals ◽  
Induced Changes ◽  
Epidermal Electronics

In order to provide continuous diagnostic and therapeutic options that exploit electrophysiological signals from the epidermis, this study discusses epidermal electronics systems (EES) that conform to the skin surface via van der Waals force alone, which is otherwise susceptible to artifacts associated with motion-induced changes. This paper not only establishes a criterion of conformal contact between the EES and the skin for both initial contact and the case where the skin is subject to external loading but also investigates the criterion to prevent any partial delamination between electronics and the skin. These results improve the performance of EES by maximizing intimate contact between the EES and skin, revealing important underlying physical insights for device optimization and future design.

Highly Conformable, Transparent Electrodes for Epidermal Electronics

Nano Letters ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 4531-4540 ◽  
Author(s):  
Jin-Hoon Kim ◽  
Seung-Rok Kim ◽  
Hye-Jun Kil ◽  
Yu-Chan Kim ◽  
Jin-Woo Park
Keyword(s):  
Transparent Electrodes ◽  
Epidermal Electronics
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