A Truss-Supported Doubly-Curved Deployable Reflector Based on the Miura-Ori Pattern

Abstract

This paper introduces a novel deployable reflector concept based on the Miura-Ori origami pattern. Compact folding is achieved for a doubly-curved reflector surface and its supporting truss, along with accommodation for structural thickness and depth. All components maintain kinematic mobility whilst remaining strain-free throughout a single-degree-of-freedom folding process, and collision between all components is eliminated. In this paper, the baseline reflector architecture is introduced and a parametric design methodology using Bayesian optimization to systematically obtain optimally-stowed geometries is detailed. In addition, an example design is obtained, a corresponding prototype model is made, and the design space is examined using Gaussian process regression.