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Publisher DOI: 10.3390/act10070163
Title: Fluid-structure interaction modelling of a soft pneumatic actuator
Language: English
Authors: Maruthavanan, Duraikannan 
Seibel, Arthur 
Schlattmann, Josef 
Keywords: fluid-structure interaction (FSI); soft pneumatic actuator (SPA); pneumatic networks (PneuNets); hyperelastic material
Issue Date: 15-Jul-2021
Publisher: Multidisciplinary Digital Publishing Institute
Source: Actuators 10 (7): 163 (2021)
Abstract (english): 
This paper presents a fully coupled fluid-structure interaction (FSI) simulation model of a soft pneumatic actuator (SPA). Previous research on modelling and simulation of SPAs mostly involves finite element modelling (FEM), in which the fluid pressure is considered as pressure load uniformly acting on the internal walls of the actuator. However, FEM modelling does not capture the physics of the fluid flow inside an SPA. An accurate modelling of the physical behaviour of an SPA requires a two-way FSI analysis that captures and transfers information from fluid to solid and vice versa. Furthermore, the investigation of the fluid flow inside the flow channels and chambers of the actuator are vital for an understanding of the fluid energy distribution and the prediction of the actuator performance. The FSI modelling is implemented on a typical SPA and the flow behaviour inside the actuator is presented. Moreover, the bending behaviour of the SPA from the FSI simulation results is compared with a corresponding FEM simulation.
DOI: 10.15480/882.3687
ISSN: 2076-0825
Journal: Actuators 
Other Identifiers: doi: 10.3390/act10070163
Institute: Laser- und Anlagensystemtechnik G-2 
Document Type: Article
Project: Publikationsfonds 2021 
More Funding information: This publication was supported by the funding programme “Open Access Publishing” of Hamburg University of Technology (TUHH).
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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