Abstract
The authors propose a novel unmanned underwater vehicle (UUV) based on a piezoelectric smart element, which facilitates piezoelectric energy harvesting as well as piezoelectric vibration reduction. In this report, the operating principle of the UUV is presented. Using Donnell’s theory, dynamic models of body structure are established, and the natural frequency sensitivity in addition to the vibration mode equations are deduced. Using MATLAB software, the vibration modes and their sensitivity to the change of investigated parameters are simulated. The results indicate that the natural frequencies are sensitive to the change of the middle surface radius and body length. It was also noted that the shear modes are more apparent for lower order vibrations, while the torsional moment modes are more significant for higher order vibrations. These results can be used both to optimize the dimensions of a UUV and to reduce its vibrations during operation.
Highlights
Unmanned underwater vehicles (UUVs) have been widely used in areas such as oceanographic surveys, underwater detection, undersea rescue, etc. [1,2,3]
The results indicated that the bio-robotic UUV has excellent maneuverability at low velocity
The results showed that the controllers were feasible, effective, and robust for managing the control of the UUV
Summary
Unmanned underwater vehicles (UUVs) have been widely used in areas such as oceanographic surveys, underwater detection, undersea rescue, etc. [1,2,3]. The following year, Guerrero-González et al [8] proposed an intelligent navigation system for a UUV powered by renewable energy. This vehicle was designed for shadow water inspection during missions of a long duration. The results indicated that the bio-robotic UUV has excellent maneuverability at low velocity The purpose of this vehicle is for navigation over long. The results show that the developed analytical model can be utilized for accurate and efficient analysis, and the design of laminated composite plates with surface-bonded piezo-patches. The vibration characteristics of the body structure of the proposed UUV significantly influenced its dynamic performance, which can result in a vehicle with a low stability. The mode characteristics are analyzed, and the sensitivity characteristic of the frequency is investigated
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
