scholarly journals O Futuro de Soft Robotics: Uma Revisão Bibliográfica

2019 ◽  
Author(s):  
Paulo Dos Santos ◽  
Guilherme Da Silva ◽  
Juliana Silva

This study seeks to explain a new theme that has a potential of great impact in the future. Soft robots are robots that, because they are soft and not limited by their axes, can go beyond how rigid robots work. The objective of this study is to present a review of the literature on soft robots. The literature shows little research on these robots, presenting difficulties mainly in the research of sensors and materials to be used in their construction. Despite the difficulties, the increase of research with this approach will have great impacts, mainly in the medical area.

2020 ◽  
Vol 26 (8) ◽  
pp. 1345-1361 ◽  
Author(s):  
Yee Ling Yap ◽  
Swee Leong Sing ◽  
Wai Yee Yeong

Purpose Soft robotics is currently a rapidly growing new field of robotics whereby the robots are fundamentally soft and elastically deformable. Fabrication of soft robots is currently challenging and highly time- and labor-intensive. Recent advancements in three-dimensional (3D) printing of soft materials and multi-materials have become the key to enable direct manufacturing of soft robots with sophisticated designs and functions. Hence, this paper aims to review the current 3D printing processes and materials for soft robotics applications, as well as the potentials of 3D printing technologies on 3D printed soft robotics. Design/methodology/approach The paper reviews the polymer 3D printing techniques and materials that have been used for the development of soft robotics. Current challenges to adopting 3D printing for soft robotics are also discussed. Next, the potentials of 3D printing technologies and the future outlooks of 3D printed soft robotics are presented. Findings This paper reviews five different 3D printing techniques and commonly used materials. The advantages and disadvantages of each technique for the soft robotic application are evaluated. The typical designs and geometries used by each technique are also summarized. There is an increasing trend of printing shape memory polymers, as well as multiple materials simultaneously using direct ink writing and material jetting techniques to produce robotics with varying stiffness values that range from intrinsically soft and highly compliant to rigid polymers. Although the recent work is done is still limited to experimentation and prototyping of 3D printed soft robotics, additive manufacturing could ultimately be used for the end-use and production of soft robotics. Originality/value The paper provides the current trend of how 3D printing techniques and materials are used particularly in the soft robotics application. The potentials of 3D printing technology on the soft robotic applications and the future outlooks of 3D printed soft robotics are also presented.


Micromachines ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 485 ◽  
Author(s):  
Gianni Stano ◽  
Luca Arleo ◽  
Gianluca Percoco

Air tightness is a challenging task for 3D-printed components, especially for fused filament fabrication (FFF), due to inherent issues, related to the layer-by-layer fabrication method. On the other hand, the capability of 3D print airtight cavities with complex shapes is very attractive for several emerging research fields, such as soft robotics. The present paper proposes a repeatable methodology to 3D print airtight soft actuators with embedded air connectors. The FFF process has been optimized to manufacture monolithic bending PneuNets (MBPs), an emerging class of soft robots. FFF has several advantages in soft robot fabrication: (i) it is a fully automated process which does not require manual tasks as for molding, (ii) it is one of the most ubiquitous and inexpensive (FFF 3D printers costs < $200) 3D-printing technologies, and (iii) more materials can be used in the same printing cycle which allows embedding of several elements in the soft robot body. Using commercial soft filaments and a dual-extruder 3D printer, at first, a novel air connector which can be easily embedded in each soft robot, made via FFF technology with a single printing cycle, has been fabricated and tested. This new embedded air connector (EAC) prevents air leaks at the interface between pneumatic pipe and soft robot and replaces the commercial air connections, often origin of leakages in soft robots. A subsequent experimental study using four different shapes of MBPs, each equipped with EAC, showed the way in which different design configurations can affect bending performance. By focusing on the best performing shape, among the tested ones, the authors studied the relationship between bending performance and air tightness, proving how the Design for Additive Manufacturing approach is essential for advanced applications involving FFF. In particular, the relationship between chamber wall thickness and printing parameters has been analyzed, the thickness of the walls has been studied from 1.6 to 1 mm while maintaining air tightness and improving the bending angle by 76.7% under a pressure of 4 bar. It emerged that the main printing parameter affecting chamber wall air tightness is the line width that, in conjunction with the wall thickness, can ensure air tightness of the soft actuator body.


2019 ◽  
Vol 4 (10) ◽  
pp. 1970054
Author(s):  
Yuan‐Fang Zhang ◽  
Colin Ju‐Xiang Ng ◽  
Zhe Chen ◽  
Wang Zhang ◽  
Sahil Panjwani ◽  
...  

2014 ◽  
Vol 34 (4) ◽  
pp. 384-400 ◽  
Author(s):  
Laura Nissen ◽  
Kimberly Pendell ◽  
Pauline Jivanjee ◽  
Charlotte Goodluck

Author(s):  
Jane Aronson

ABSTRACTThrough a review of the literature, this article explores the debate between the traditional perspective that conceives it as natural that families take care of their elderly members when frail or in need and an emerging critique of this view. The critique exposes the invisible divisions of caring work between men and women and between public and private arenas, and challenges the comfortable imagery of ‘family care.’ The implications of this analysis for the future are considered, both for constructive changes in social policies and for the reformulation of assumptions on which research and practice with the frail elderly and their families are based.


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