Control Design of Cyber-Physical Structures for Fluid-Structure Interaction
Research Abstract:
In recent years, a hybrid experimental-computational approach known as cyber-physical fluid dynamics (CPFD) has been adopted by several researchers to study a broad range of fluid-structure interaction (FSI) phenomena. CPFD replaces traditional elastically mounted wind or water tunnel models with a cyber-physical structure (CPS). A CPS seamlessly integrates active actuation, sensing, and control algorithms to physically replicate the inertia, stiffness, damping, and kinematic constraints of a desired structure while interacting with a physical environment. The interaction is solved using a digital computer, except that the Navier-Stokes equations and the discretized flow field is replaced with a real fluid flow. CPS is advantageous because the mechanical properties of the CPS can be precisely set as with computational methods, but unlike mechanical structures, can be readily altered in software. In addition, the use of real fluid flow provides physically valid flow behaviors and infinite spatial resolution.
References:
Mackowski, A. W., and Williamson, C. H. K., “Developing a cyber-physical fluid dynamics facility for fluid-structure interaction studies,” Journal of Fluids and Structures, vol. 27, 2011, pp. 748–757.
Researchers:
Publications:
2. Waghela, R., Bryant, M., and Wu, F., “Control Design in Cyber-Physical Fluid-Structure Interaction Experiments”, Journal of Fluids and Structures, Vol. 82, 2018.
1. Waghela, R., Bryant, M., “Control Design for High-Fidelity Cyber-Physical Systems with Applications to Experimental Fluid-Structure Interaction Studies,” Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems (SMASIS 2017), September 18-20 2017, 2017, Snowbird, UT.