Investigation of the stability and hydrodynamics of Tetrosomus gibbosus carapace in different pitch angles
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In this paper, stability properties of Tetrosomus gibbosus have been experimentally and numerically studied in pitching movements. This fish lives in southern offshores of Iran. Boxfishes usually live in extremely turbulent parts of seas and oceans, with high stability and maneuverability that has caught the attention of scientists. Their body shape let them swim with a quite rapid speed. Studies on Boxfishes have had influences on automotive and marine industries. The CAD file of the boxfish was created using optical CMM. Also a model was built and tested in a subsonic wind tunnel and a numerical study was conducted in virtual wind tunnel. The experimental results are consistent with the numerical ones and also support the findings of other studies on similar boxfishes. These results show that the flow around the fish, which is a consequence of its body shape, tries to maintain the stable position of the fish by resisting against the external force tilting the fish from its stable horizontal posture. The ventral and dorsal keels of the boxfish generate column-like vortices in horizontal direction which play an imperative role in maintaining the stability of the fish.
Key wordsBoxfish Tetrosomus gibbosus humpback turretfish hydrodynamic stability experimental fluid mechanics bio-inspired engineering
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We would like to thank Aref Vandadi, Hassan Nikpey, Mohammadreza DaqiqShirazi and Sina Meftah for their contribution to this research and their kindest helps and supports.
- Walker J. A. Does a rigid body limit maneuverability? [J]. J. Exp. Biol., 2000, 203(Pt 22): 3391–3396.Google Scholar
- Hove J. R. The biomechanics, energetics and hydrodynamics of ostraciiform locomotion [D]. University of California, 1999.Google Scholar
- Webb P. W. Buoyancy, Locomotion, and movement in fishes (Farrell F. P. Maneuverability) [M]. San Diego: Academic Press, 2011, 575–580.Google Scholar
- Deng X., Avadhanula S. Biomimetic micro underwater vehicle with oscillating fin propulsion: System design and force measurement [C]. Proc.–IEEE Int. Conf. Robot. Autom., 2005, 3312–3317.Google Scholar
- Kodati P., Deng X. Experimental studies on the hydrodynamics of a robotic ostraciiform tail fin [C]. IEEE Int. Conf. Intell. Robot. Syst., 2006, 5418–5423.Google Scholar
- Kodati P., Deng X. Towards the body shape design of a hydrodynamically stable robotic boxfish [C]. IEEE International Conference on Intelligent Robots and Systems, 2006, 5412–5417.Google Scholar
- Kodati P., Hintle J., Deng X. Micro autnonomous robotic ostraciiform, design and fabrication [C]. Robotics and Automation, 2007 IEEE International Conference on, 2007, 10–14.Google Scholar
- Kodati P., Deng X. Bio–inspired robotic fish with multiple fins (Inzartsev A. V. Underwater vehicles) [M]. INTECH Open Access Publisher, 2009, 97–109.Google Scholar
- Pi L. Attitude control of a bio–inspired robotic fish with flexible pectoral fins [D]. University of Delaware, 2009.Google Scholar
- Lachat D., Crespi A., Ijspeert A. J. BoxyBot: A swimming and crawling fish robot controlled by a central pattern generator [C]. Proc. First IEEE/RAS–EMBS Int. Conf. Biomed. Robot. Biomechatronics, 2006, 643–648.Google Scholar
- Crespi A., Lachat D., Pasquier A. et al. Controlling swimming and crawling in a fish robot using a central pattern generator the fish robot BoxyBot [J]. Auton. Robots, 2008, 25(1–2): 1–10.Google Scholar
- Wang W., Guo J., Wang Z. et al. Neural controller for swimming modes and gait transition on an ostraciiform fish robot [C]. 2013 IEEE/ASME Int. Conf. Adv. Intell. Mechatronics Mechatronics Hum. Wellbeing, AIM 2013, 2013, 1564–1569.Google Scholar
- Wang W., Xie G. CPG–based locomotion controller design for a boxfish–like robot [J]. Int. J. Adv. Robot. Syst., 11(1): 2014.Google Scholar
- Wang W., Xie G., Shi H. Dynamic modeling of an ostraciiform robotic fish based on angle of attack theory [C]. Proceedings of the International Joint Conference on Neural Networks, 2014, 3944–3949.Google Scholar
- Deng H., Wang W., Luo W. et al. Yaw Angle Control of a Boxfish–like Robot Based on Cascade PID Control Algorithm [C]. 2015 6th International Conference on Power Electronics Systems and Applications (PESA), 2015, 1–5.Google Scholar
- Wang W., Zhang X., Zhao J. et al. Sensing the neighboring robot by the artificial lateral line of a bio–inspired robotic fish [J]. IEEE International Conference on Intelligent Robots and Systems, 2015, 1565–1570.Google Scholar
- Hanlon M. The bionic car project, 2005. [Online]. Available: https://doi.org/www.gizmag.com/go/4133/. (Accessed: 24-Jul-2016).
- Lawrence K. L. ANSYS workbench tutorial release 14 [M]. SDC publications, 2012.Google Scholar