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This project is the exploratory study of a programmable pneumatised material system. It aims to develop a multi-material system that deforms with pneumatic actuation, and to study various inflation patterns and their effect on resulting deformation.
Programmable Pneumatised Material System explores a new kind of architecture that can adapt to a changing environment and give people emotional support. A prototype was designed consisting of three parts: the membrane, the edge and the crease. Based on the principles of a certain elasticity, a good air tightness and an elegant appearance. Different membranes amde from fabric to polymer materials have been tested. For the edges, materials that could produce bending and significant deformation were sought. For creating creases, stitching, gluing, memory metal and lasers were used. The goal of this prototype was to be able to produce a clear and precise creases with reduced or no air leakage.
Our pneumatic system consists of three main parts: the membrane, the edge and the crease.
Fabric stitching produces detailed crease textures with severe air leakage. Polymer stitching is subject to high resistance. SMA can control both shrinkage and deformation without damaging the membrane.
The goal is to deform from 2D patterns into 3D space, producing distinct deformations and shaping space. The circle shape deforms well. Due to the continuous edge, there is no influence of nodes. It also has the most stable deformation.
Using a circle as the prototype, a mock-up of assembly patterns was simulated. The goal was to be able to roll inwards. The best performing test was chosen to make a physical model.
A smaller prototype (45cm x 35cm) was built to double check the results of the simulation. Then a full size 1.4m x 1.1m was built.
The robotic control system includes sensors for collecting vibrations and heartbeats, computers and unity environments, and actuators to control inflation and deflation, and SMA current output.
A computer simulation was set up to test various topologies of the material system.
Accommodating several types of creases.
Using patterns that can be explored.
Simulation to generate and test forms for the material system.
Testing and comparing the digital to physical performance in order to validate the simulation.
The digital tool provides an interface to the user to select from a catalogue of design features.
The digital tool also enables the user to study and compare the digital to physical static form.
The workflow can be further extended to study the dynamic behaviour of the material system.