A Pin-Array Structured Climbing Robot for Stable Locomotion on Steep Rocky Terrain
🤖 AI Summary
This work proposes a mobile climbing robot equipped with a compliant needle-array gripper to address the challenges of adhesion and locomotion instability on unstructured, steep rock surfaces. The design features vertically segmented elastic needle units that integrate mechanical interlocking with passive compliance, leveraging mechanical redundancy to enhance attachment robustness while significantly reducing reliance on complex perception and control systems. The needle array employs an elastomer–metal composite structure, whose efficacy is validated through statistical modeling and experimental testing. The robot demonstrates stable and reliable climbing performance on both indoor inclined walls (10–30 degrees) and outdoor natural rocky terrains, confirming the practicality and adaptability of the proposed approach.
Application Category
📝 Abstract
Climbing robots face significant challenges when navigating unstructured environments, where reliable attachment to irregular surfaces is critical. We present a novel mobile climbing robot equipped with compliant pin-array structured grippers that passively conform to surface irregularities, ensuring stable ground gripping without the need for complicated sensing or control. Each pin features a vertically split design, combining an elastic element with a metal spine to enable mechanical interlocking with microscale surface features. Statistical modeling and experimental validation indicate that variability in individual pin forces and contact numbers are the primary sources of grasping uncertainty. The robot demonstrated robust and stable locomotion in indoor tests on inclined walls (10-30 degrees) and in outdoor tests on natural rocky terrain. This work highlights that a design emphasizing passive compliance and mechanical redundancy provides a practical and robust solution for real-world climbing robots while minimizing control complexity.
Problem
Research questions and friction points this paper is trying to address.
climbing robot
unstructured terrain
surface adhesion
steep rocky terrain
stable locomotion
Innovation
Methods, ideas, or system contributions that make the work stand out.
pin-array gripper
passive compliance
mechanical interlocking
climbing robot
unstructured terrain
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