Abstract
The geometrical inflexibility of rigid-body kinetic building façades is disadvantageous in free-form architecture. To address this problem, a gearless, lightweight, and geometrically flexible daylight-adaptive shading façade module is proposed by hybridizing gripper-shaped pneumatic elastomer and shape memory alloy (SMA) actuators. The compliant inflation mechanism and thermomechanical response of the bias SMA actuation achieved flexural morphology of the stretchable fabric skin and a maximum opening area ratio of ∼20%. Design feasibility, stable mobility, and structural endurance were identified through performance simulation and material testing, followed by operation tests with full-scale prototyping. This paper presents an advanced architectural application of soft robotics technology and smart material. Our findings expand the knowledge on bio-inspired designs and construction processes in climate-responsive building.
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