A Novel Adaptive Façade Using Cable-Driven Compliant Mechanisms

Abstract

Adaptive fa & ccedil;ade systems have the potential to significantly reduce energy consumption and CO2 emissions while enhancing, among others, the thermal and lighting comfort of building occupants. However, most existing adaptive fa & ccedil;ades rely on rigid body mechanisms, which introduce mechanical complexity and increase maintenance costs. To address these challenges, bio-inspired compliant mechanisms, which use flexible elements capable of elastic deformation, offer a promising solution by eliminating the need for conventional hinges. However, studies in the literature show that while such systems often succeed in reducing the number of hinges, they do not typically achieve a reduction in the number of actuators. This study addresses the gap by combining cable networks with compliant mechanisms to minimize the number of actuators while proposing a holistic approach that integrates kinematic design, material selection, pattern development, structural analysis, and daylight performance evaluation. The study uses computer simulations to evaluate the system's kinematic characteristics, material properties, structural integrity, and daylight performance. The study explores fa & ccedil;ade patterns, cable networks, and actuation systems, alongside structural and environmental analyses, to develop an efficient and innovative adaptive fa & ccedil;ade system that simplifies mechanical design and enhances visual comfort.