Fluid-Structure Interaction Dynamics for Laminated Plate\Shell Topology Optimization

This paper focuses on Fluid-structure interaction dynamics for laminated plate\shell topology optimization. Based on ICM method, the filtering function of the element weight, the element mass matrix and the element stiffness matrix are established. Through Fluid-structure interaction boundary element integral formula, and Taylor expansion of Rayleigh quotient which is described by the filter function, the frequency constraint is approximately expressed as an explicit function and the mathematical formulation of the optimal problem refer to weight as objective and subject to multiple frequency constraints. Finally, the topology optimization problem is solved by dual sequence quadratic programming (DSQP). Numerical examples are provided to demonstrate the validity and effectiveness.