Mechatronic Design and Maneuverability Analysis of a Novel Robotic Shark
Liyang Gao , Peng Li , Hongde Qin , Zhongchao Deng
Journal of Marine Science and Application ›› 2022, Vol. 21 ›› Issue (2) : 82 -91.
Mechatronic Design and Maneuverability Analysis of a Novel Robotic Shark
In this paper, the mechatronic design and maneuverability analysis of a novel robotic shark are presented. To obtain good maneuverability, a barycenter regulating device is designed to assist the posture adjustment at low speeds. Based on the Newton-Euler approach, an analytical dynamic model is established with particular consideration of pectoral fins for three-dimensional motions. The hydrodynamic coefficients are computed using computational fluid dynamics (CFD) methods. Oscillation amplitudes and phases are determined by fitting an optimized fish body wave. The performance of the robotic shark is estimated by varying the oscillation frequency and offset angle. The results show that with oscillation frequency increasing, the swimming speed increases linearly. The robotic shark reaches the maximum swimming speed of 1.05 m/s with an oscillation frequency of 1.2 Hz. Furthermore, the turning radius decreases nonlinearly as the offset angle increased. The robotic shark reaches the minimum turning radius of 1.4 times the body length with 0.2 Hz frequency and 12° offset angle. In the vertical plane, as the pectoral fin angle increases, the diving velocity increases nonlinearly with increase rate slowing down.
Mechatronic design / Three-joint propulsion system / Robotic shark / Dynamic modeling / Maneuverability analysis
| [1] |
Cai YL, Suo LL, Sun X (2019) Review of methods for coral reef bleaching monitoring. Marine Environmental Science |
| [2] |
Chowdhury AR, Prasad B, Kumar V, Kumar R, Panda SK (2011) Design, modeling and open-loop control of a BCF mode bio-mimetic robotic fish. 2011 IEEE International Symposium on Safety, Security, and Rescue Robotics, 226–231. https://doi.org/10.1109/SSRR.2011.6106768 |
| [3] |
|
| [4] |
Coker DJ, Wilson SK, Pratchett MS (2014) Importance of live coral habitat for reef fishes. Reviews in Fish Biology and Fisheries, 24, 89–126. https://doi.org/10.1007/s11160-013-9319-5 |
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
Fossen (2011) Handbook of marine craft hydrodynamics and motion control |
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
Low KH (2011) Current and future trends of biologically inspired underwater vehicles. 2011 Defense Science Research Conference and Expo, 1–8. https://doi.org/10.1109/DSR.2011.6026887 |
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
Yang X, Wu Z, Yu J (2016) Design and implementation of a robotic shark with a novel embedded vision system. 2016 IEEE International Conference on Robotics and Biomimetics 841–846. https://doi.org/10.1109/ROBIO.2016.7866428 |
| [26] |
|
| [27] |
|
| [28] |
|
/
| 〈 |
|
〉 |