Passive Autonomy: Hygromorphic Rotational Actuators: Design & Evaluation

Inspired by phenomena in the plant world, a<br/>meteoro-sensitive rotational actuator is developed. The design<br/>uses a hygro-active shell, whose water-based swelling is restricted<br/>at selective locations to form a helicoid structure. The influence<br/>of geometrical parameters on the performance is investigated<br/>using a numerical...