Wake Vectoring for Efficient Morphing Flight

2025-12-04

AI Summary

During aerial reconfiguration, morphing vehicles suffer substantial vertical thrust loss due to propeller tilt, compromising hover stability and maneuverability. To address this, we propose a passive wake deflection mechanism: integrating static internal flow deflectors within the Aerially Transforming Morphobot (ATMO) system, which harnesses rotor downwash kinetic energy to dynamically redirect wake flow and augment vertical thrust. This purely aerodynamic solution requires no electronics or actuated components, ensuring lightweight design and high reliability. Experimental results demonstrate up to 40% recovery of lost vertical thrust under severely degraded configurations, significantly extending stable hover duration and improving transient maneuver response during shape transformation. Our approach establishes a new paradigm for aerodynamic self-compensation in morphing aerial systems—moving beyond conventional reliance on active control or structural redundancy—thereby enhancing robustness and efficiency in dynamic flight regimes.

Technology Category

• Intelligent Robots: Manipulation
• Machine Learning: Hardware-aware ML
• Planning, Routing, and Scheduling: Replanning and Plan Repair

Application Category

• Responsible Web: Machine-in-the-loop, human agency and autonomy
• Systems and Infrastructure for Web, Mobile and WoT: Energy management for devices in mobile Web and WoT environments
• User Modeling, Personalization and Recommendation: Accountability, Transparency, and Ethics for personalization

Abstract

Morphing aerial robots have the potential to transform autonomous flight, enabling navigation through cluttered environments, perching, and seamless transitions between aerial and terrestrial locomotion. Yet mid-flight reconfiguration presents a critical aerodynamic challenge: tilting propulsors to achieve shape change reduces vertical thrust, undermining stability and control authority. Here, we introduce a passive wake vectoring mechanism that recovers lost thrust during morphing. Integrated into a novel robotic system, Aerially Transforming Morphobot (ATMO), internal deflectors intercept and redirect rotor wake downward, passively steering airflow momentum that would otherwise be wasted. This electronics-free solution achieves up to a 40% recovery of vertical thrust in configurations where no useful thrust would otherwise be produced, substantially extending hover and maneuvering capabilities during transformation. Our findings highlight a new direction for morphing aerial robot design, where passive aerodynamic structures, inspired by thrust vectoring in rockets and aircraft, enable efficient, agile flight without added mechanical complexity.

Problem

• Recovers lost vertical thrust during mid-flight reconfiguration
• Enables stable hover and control during morphing without electronics
• Uses passive wake vectoring to enhance agility in cluttered environments

Innovation

• Passive wake vectoring mechanism redirects rotor wake
• Internal deflectors recover vertical thrust during morphing
• Electronics-free solution enhances hover and maneuvering capabilities