Design and fabrication in the loop of soft pneumatic actuators using fused deposition modelling

Herianto, -; Irawan, Wira; Ritonga, Alim Syahirul; Prastowo, Aishah

doi:10.1016/j.sna.2019.111556

Cited by 23 publications

(2 citation statements)

References 34 publications

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“…The material that used in this research was TPU Eflex filament (eSun eFlex). Eflex is chosen in this research because its hyperelastic characteristic suit with the application of SPA, good outcome, commercially available in the market, and commonly used in 3D Printing communities [25]- [27]. The TPU Eflex material has a melting point of 190°C.…”

Section: Spa Fabricationmentioning

confidence: 99%

Comparative Analysis of Custom-Designed Soft Pneumatic Actuators for Human Thumb Movement in Post-Stroke Rehabilitation

Ritonga,

Herianto

2023

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One of the most potential applications of soft actuator is as wearable medical devices for post-stroke rehabilitation as a field that requires high levels of safety and adaptability. Incorporating SPAs into such devices can provide a safer and more secure solution, ensuring controlled movements that do not pose a risk to patients. However, there is a research gap regarding the design considerations for soft actuators specifically targeting the human thumb, which exhibits distinct motion patterns compared to the other fingers. This paper addresses this gap by developing and evaluating custom-designed SPAs for the movement of the human thumb, with a focus on post-stroke rehabilitation. Three SPA models (M1, M2, and M3) were proposed, and their performance in replicating the twisting motion of the thumb was assessed. The SPAs were fabricated using 3D printing, and image processing software was utilized for measurement and analysis. The results showed that the M3 model, with two sections of chambers in different axes, exhibited the best performance in generating the desired twisting angle. Integration of the M3 model with four finger-shaped SPAs enabled successful grasping and picking-like movements. This research contributes to the advancement of soft actuators in wearable medical devices, particularly in post-stroke rehabilitation, and holds promise for enhancing patient recovery and quality of life.

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Section: Spa Fabricationmentioning

confidence: 99%

Comparative Analysis of Custom-Designed Soft Pneumatic Actuators for Human Thumb Movement in Post-Stroke Rehabilitation

Ritonga,

Herianto

2023

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“…To prevent this challenge, 3D printing techniques are employed. After 3D printing, the fusion deposition method (FDM) was developed to print actuator parts layer by layer (Herianto et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Structural optimization and parameter investigation of trapezoidal shape soft pneumatic actuator

Vellaiyan,

Venkateshkumar,

Bijalwan

et al. 2024

Preprint

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This study investigates the effects of actuator design parameters on the performance of developed trapezoidal shaped soft pneumatic actuator, optimizes its geometric structure using the finite element method and validates its performance experimentally. To optimize the soft pneumatic actuator, the effects of structural parameters such as wall thickness, gap between the adjacent chambers, passive layer thickness, width of inside chamber and the bending angle of the actuator were evaluated. Finite Element Analysis is used to determine the displacement variation of actuator with different levels of applied pressures. A Global Analysis of Variance was conducted to determine the influence of variables affecting the displacements of soft pneumatic actuator was determined. The ANOVA results, a geometric actuator with a wall thickness of 1.5 mm, gap between chambers of 4 mm, passive layer thickness of 2 mm and the width of inside chamber of 4 mm is recommended for the actuator to be achieve maximum bend angle. The proposed actuator model can be used to select the suitable actuator for grasping soft objects without deformation. In addition, experiment was conducted to correlate the results with finite element analysis data.

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4D Multimaterial Printing of Soft Actuators with Spatial and Temporal Control

Zhou,

Sun,

Wojciechowski

et al. 2024

Advanced Materials

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Soft actuators (SAs) are devices which can interact with delicate objects in a manner not achievable with traditional robotics. Whilst it is possible to design a soft actuator whose actuation is triggered via an external stimulus, the use of a single stimulus creates challenges in the spatial and temporal control of the actuation. One solution is to design soft actuators whose actuation requires the combination of stimuli (i.e., logic‐gate type actuation) to initiate the actuation event. Herein, we present a 4D printed multi‐material soft actuator design (MMSA) whose actuation is only initiated by a combination of triggers (i.e., pH and temperature). Using 3D printing, we designed a multi‐layered soft actuator with a hydrophilic pH sensitive layer, and a hydrophobic magnetic and temperature responsive shape memory polymer layer. The hydrogel responds to environmental pH conditions by swelling or shrinking, whilst the shape memory polymer can resist the shape deformation of the hydrogel until triggered by temperature or light. The combination of these stimuli responsive layers allows for a high level of spatial and temporal control of the actuation. We demonstrate the utility of the 4D MMSA via a series of cargo capture and release experiments, validating its ability to demonstrate active spatiotemporal control. The MMSA concept provides a promising research direction to develop multifunctional soft devices with potential applications in biomedical engineering and environmental engineering.This article is protected by copyright. All rights reserved

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Design and fabrication in the loop of soft pneumatic actuators using fused deposition modelling

Cited by 23 publications

References 34 publications

Comparative Analysis of Custom-Designed Soft Pneumatic Actuators for Human Thumb Movement in Post-Stroke Rehabilitation

Comparative Analysis of Custom-Designed Soft Pneumatic Actuators for Human Thumb Movement in Post-Stroke Rehabilitation

Structural optimization and parameter investigation of trapezoidal shape soft pneumatic actuator

4D Multimaterial Printing of Soft Actuators with Spatial and Temporal Control

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