Abstract
Inspection and maintenance are extremely important to maintain safety and long-term usability of bridges. This application requires a robot that is able to maneuver in a complex 3D environment and to stabilize on steel surfaces to perform bolts checking. We propose a novel design and concept of hybrid (integrated walkability and flyability) robot for steel bridge inspection and maintenance. Our proposed design allow the robot to access a 3D structure without being time consuming. In order to stabilize our robot in 3D space, we present a vibration control based on a vibrator to compensate vibration generated from joint actuators when the robot is flying. We present a preliminary experiment on how our robot performs obstacle avoidance along with a simulation of flying performance of a hybrid robot when the vibration was compensated based on LQG control.
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