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• Huade Tan

Publications

• Tan, H, Goetz, J, A. Tovar, J.E. Renaud. Validation of Computational Fluid Structure Interaction Modesl For Shape Optimization Under Blast Impact. IDETC CIE conference, Montreal, Quebec, Canada, August, 2010.
• Tan, H, Goetz, J, A. Tovar, J.E. Renaud. Simultaneous Topography Optimization of a Vehicle Hull and Topology Optimization of the Assembly Interface for Blast Mitigation. GVSETS conference, Troy, Michigan, August 2010.
• Tan, H, Goetz, J, A. Tovar, J.E. Renaud. HCA Approach to Topography Design Optimization of a Structure for Fluid Structure Interaction.   AIAA SDM conference, Ft. Lauderdale, Florida, April, 2010.
• J. Goetz, H. Tan, A. Tovar, J.E. Renaud.  Topology Optimization of Blast Mitigating Vehicle Sub Structures.  TARDEC MSTV conference,. Troy, Michigan, August 2009.
• J. Goetz, H. Tan, J.E. Renaud, A. Tovar.  Multi-Material Structural Optimization for Blast Mitigation Using Hybrid Cellular Automata.  AIAA SDM conference, Ft. Lauderdale, Florida, April, 2010.

Research

• Topography design of structures for fluid structure interaction

Designs of V or shaped hull structures utilizing such mitigation methods and have been implemented in existing vehicle platforms.  The design of such energy deflecting structures relies heavily on costly trial-and-error experimental approaches.  An efficient topography optimization method for energy-deflecting structures has recently been developed.  This method finds the optimum shaped hull structure with the use of a grid of perturbation vectors over a finite element mesh. With the use of a distributed control approach, the algorithm finds the location of the nodes that minimize the target effective impulse and acceleration.  

   

• Simultaneous topology design of supports for blast blast impulse transfer

A novel optimization tool has been developed that simultaneously accounts for both energy dissipating capabilities and assembly constraints.  This research details the design procedure to optimize the blast mitigation capabilities of a shaped hull design and to optimize the mounting locations of the structure to the vehicle.  The resulting hull design is shown to reduce the blast loading imparted on the vehicle structure.  Component attachment locations are found to influence the major deformation modes of the target and the final hull design.

 

   

• Topography design of shaped hulls for structural deformation mitigation.

Large scale structural deformations, measured in nodal displacement or penetration depth, are of interest in the vehicle level blast mitigation problem because they translate to compressive loads exerted on the lower extremities of the occupant: resulting mainly in incapacitating or paralyzing injuries.  The target deformation problem is cast as a minimization of the maximum deformation or maximum penetration of a target structure subject to an incident blast load.  Standard simplified vehicle geometries were selected as a baseline design.  Convex primary mode dominated shape functions are shown to mitigate large scale deformations of thin walled structures due to blast loading.