About this Engineering article
Soft Pneumatic Actuators with Controllable Stiffness by Bio‐Inspired Lattice Chambers and Fused Deposition Modeling 3D Printing by Mohammadreza Lalegani Dezaki; Mahdi Bodaghi; Ahmad Serjouei; Shukri Afazov; Ali Zolfagharian is a Engineering article available to read on EtoBox.
This article shows how changing 3D printing parameters and using bio‐inspired lattice chambers can engineer soft pneumatic actuators (SPAs) with different behaviors in terms of controlling tip deflection and tip force using the same input air pressure. Fused deposition modeling (FDM) is employed to 3D print soft pneumatic actuators using varioShore thermoplastic polyurethane (TPU) materials with a foaming agent. The effects of material flow and nozzle temperature parameters on the material properties and stiffness are investigated. Auxetic, columns, face‐centered cubic, honeycomb, isotruss, oct vertex centroid, and square honeycomb lattices are designed to study actuators’ behaviors under the same input pressure. Finite‐element simulations based on the nonlinear hyper‐elastic constitutive model are carried out to precisely predict the behavior, deformation, and tip force of the actuators. A closed‐loop pneumatic system and sensors are developed to control the actuators. Results show that lattice designs can control the bending angle and generated force of actuators. Also, the lattices increase the ultimate strength by controlling the contact area inside the chambers. They demonstra
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Mohammadreza Lalegani Dezaki; Mahdi Bodaghi; Ahmad Serjouei; Shukri Afazov; Ali Zolfagharian
- Publisher
- Wiley
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)