LCSR Seminar: Hunter Gilbert

Description

Hunter Gilbert, an associate professor of mechanical engineering at Louisiana State University, will give a talk titled "Continuum Robots: Addressing Challenges through Modeling, Design, and Control" for the Laboratory for Computational Sensing + Robotics.

Gilbert is also co-director of the Innovation in Control and Robotics Engineering research laboratory at Louisiana State University and is an associate editor for the Institute of Electrical and Electronics Engineers' Robotics and Automation Letters and for Frontiers in Robotics and AI.

Abstract:

Continuum robots change their shape with elastic deformations rather than mechanical joints and are often elastically deform under typical forces for their applications. They have advantages in some environments where geometry may be complex and not well-known in advance of operations, which is a common feature of many applications outside of factory settings. Continuum robots leverage contact and deformation to complete tasks, relying on passive mechanical behaviors in addition to software-based intelligence and traditional control systems. For example, robots with slender, snake-like, elastic bodies can navigate the tortuous human anatomy like the colon or the esophagus to perform surgery, or they can navigate through challenging industrial environments like pipelines and machinery to perform "minimally invasive" inspection and maintenance. However, slender bodies and mechanical softness come with distinct engineering challenges. Many slender-bodied soft robots have adopted remote actuation approaches that suffer from exponentially worsening friction as they bend. Additionally, many approaches to actuation result in an undesirable coupling between actuators. In this seminar, I will describe our recent research that has focused on improving the understanding of continuum mechanism manipulator designs, models, and applications. Ongoing studies are aimed at (i) improving the design of electromechanically driven continuum robots; (ii) investigating methods to mitigate friction in long, slender devices; and (iii) improving modeling approaches for continuum robots.