Torque Analysis of IPMC Actuated Fin of a Micro Fish like Device Using Two-Way Fluid Structure Interaction Approach

Abstract:

In this paper, a numerical simulation of three dimensional model of IPMC actuated fin of a fish like micro device is presented using two-way fluid structure interaction approach. The device is towed by the surface vessel through a tow cable. Fin is acting as dorsal fin of the fish to control depth of the device and also acts as a stabiliser against its roll motion. Fin's displacement disturbs water flow streamlines around it, as a result velocity and pressure profile of fluid's domain changes around the actuated fin. As fin's position continuously changes throughout its actuation cycle, this makes it transient structural problem coupled with a fluid domain. Fin's displacement is received by the fluid and resulting fluid forces are received by the fin making it a two-way fluid structure interaction (FSI) problem. Such problems are solved by multi field numerical simulation approach. This multifield numerical simulation is performed in ANSYS WORKBENCH by coupling transient structural and Fluid Flow (CFX) analysis systems. It is desirous to determine the torque acting on the fin due to fluid forces through its actuation cycle by IPMC actuators. The objective of this study is to develop the methodology (two-way fluid structural interaction (FSI)) used to simulate the transient FSI response of the IPMC actuated fin, subjected to large displacement against different flow speeds. Efficacy of fin as depressor and riser is also required to be judged by monitoring the forces acting on wing in response to its displacement under IPMC actuation. Same approach is also applicable to the self-propelled systems.

• Periodical: Journal of Biomimetics, Biomaterials and Biomedical Engineering (Volume 25)
• Pages: 25-38
• DOI: https://doi.org/10.4028/www.scientific.net/JBBBE.25.25
• Online since: October 2015
• Authors: Mazhar Ul Haq*, Zhao Gang, Zhuang Zhi Sun, S.M. Aftab
• Keywords: Computational Fluid Dynamics, Computational Structural Dynamics, Fluid Structure Interaction, Ionic Polymer Metal Composite, Numerical Simulation

References

[1] Mazhar Ul Haq, Prof. Zhao Gang, Shaban Usman , Anees Ur Rehman, S.M. Aftab, 2015, Forward Kinematic Analysis of IPMC Actuated Three Link Mechanism for Fin Actuation of Fish like Micro Device, Journal of Biomimetics, Biomaterials, and Biomedical Engineering Vol. 23 pp.67-75.

DOI: 10.4028/www.scientific.net/jbbbe.23.67

[2] Mazhar Ul Haq, Prof. Zhao Gang, Hafiz Muhammad Waqas , Anees Ur Rehman, S.M. Aftab, Deflection Analysis of IPMC Actuated Fin of a Fish like Micro Device, Journal of Biomimetics, Biomaterials, and Biomedical Engineering 2015 (Accepted to Vol. 24 (2015).

DOI: 10.4028/www.scientific.net/jbbbe.24.97

[3] Li, Y., Calisal, S.M., 2010. Three-dimensional effects and arm effects on modeling a vertical axis tidal current turbine. Journal of Renew Energy, 35(10): 2325-2334. [doi: 10. 1016/j. renene. 2010. 03. 002].

DOI: 10.1016/j.renene.2010.03.002

[4] Hubner, B., Walhorn, E., Dinkler, D., 2004. A monolithic approach to fluid structure interaction using space time finite elements. Journal of Computer Methods in Applied Mechanics and Engineering, 193(23-26): 2087-2104. [doi: 10. 1016/J. cma. 2004. 01. 024].

DOI: 10.1016/j.cma.2004.01.024

[5] Vaassen, J.M., DeVincenzo, P., Hirsch, C., Leonard, B., 2011. Strong Coupling Algorithm to Solve Fluid Structure- interaction Problems with a Staggered Approach. Proceedings of the 7th European Symposium on Aerothermodynamics, the Netherlands.

[6] Benra, F.K., Dohmen, H.J., Pei, J., Schuster, S., Wan, B., 2011. A comparison of one-way & two-way coupling methods for numerical analysis of fluid-structure interactions. Journal of Applied Mathematics, Article ID 853560. [doi: 10. 1155/2011/853560].

DOI: 10.1155/2011/853560

[7] Kim, Y.G., Kim, K.C., 2006. Analysis of fluid structure interaction on 100kW-HAWT-blade. The Korean Society of Visualization, 4(1): 41-46.

[8] Garelli, L., Paz, R.R., Storti, M.A., 2010. Fluid structure interaction of the start-up of a rocket engine nozzle. Journal of Computers and Fluids, 39(7): 1208-1218. [doi: 10. 10 16/j. compfluid. 2010. 03. 005].

DOI: 10.1016/j.compfluid.2010.03.005

[9] Ramji, K., Wei, S., 2004. Fluid-structure interaction for aeroelastic applications. Progress in Aerospace Sciences, 40(8): 535-558. [doi: 10. 1016/j. paerosci. 2005. 01. 001].

DOI: 10.1016/j.paerosci.2005.01.001

[10] Jo, C.H., Kim, D.Y., Rho, Y.H., Lee, K.H., Johnstone, C., 2012. FSI analysis of deformation along offshore pile structure for tidal current power. Journal of Renewable Energy, 54: 248-252. [doi: 10. 1016/j. renene. 2012. 07. 018].

DOI: 10.1016/j.renene.2012.07.018

[11] Ouahiba, G., Aziz, H., Anas, S., 2008. Fluid structure interaction of wind turbine airfoils. Journal of Wind Engineering, 32(6): 539-557. [doi: 10. 1260/030952408787548875].

DOI: 10.1260/030952408787548875

[12] Sfakiotakis, M; Lane, DM; Davies, JBC (1999). Review of Fish Swimming Modes for Aquatic Locomotion, (PDF). IEEE Journal of Oceanic Engineering 24: 2.

DOI: 10.1109/48.757275

[13] Helfman G, Collette BB, Facey DE and Bowen BW (2009) Functional morphology of locomotion and feeding, Chapter 8, p.101–116. In: The Diversity of Fishes: Biology, John Wiley & Sons. ISBN 9781444311907.