Publications / 2025 Proceedings of the 42nd ISARC, Montreal, Canada

Adaptive Kinematic and Dynamic Control for Hexapod Robots in Complex Construction Environments

Xiayu Zhao, Houtan Jebelli
Pages 210-217 (2025 Proceedings of the 42nd ISARC, Montreal, Canada, ISBN 978-0-6458322-2-8, ISSN 2413-5844)
Abstract:

Robotic systems for inspection have advanced significantly in construction. Hexapod robots offer unique advantages for navigating complex construction terrains, yet their performance on sloped and irregular surfaces is hindered by limitations in existing control strategies. . In this work, we present an integrated control framework that combines a dynamically tuned fuzzy PD controller with a Bézier curve-based trajectory generator. This unified approach addresses the critical research gap by simultaneously ensuring precise posture regulation and smooth gait execution, thus enhancing hexapod stability and efficiency. Simulations in the Gazebo environment validated the system’s performance on various roof pitches (2/12, 4/12, 6/12) and structural transitions (ridges, valleys, flashings). Results showed a 21% improvement in stability margin on 2/12 slopes, precise body orientation control within ±5° roll, ±10° pitch, and ±1.3 m/s² vertical acceleration variations. Also, this system achieved 80-100% success rates in three different types of surface transitions. This research provides a robust framework for deploying hexapod robots in challenging architectural contexts, advancing autonomous inspection capabilities in construction environments.

Keywords: Robotic system; Hexapod Robots; Roof Inspection; Adaptive Kinematic Control; Complex Construction Environment; Autonomous Construction Inspection