Integrated Optimization Design of Active Vibration Control System for Piezoelectric Intelligent Truss Structures Using Immune Algorithm

摘要

In this paper, an integrated optimization design of active vibration control system for intelligent truss structures is studied, which includes the feedback gains and the positions of the active/passive members. A performance function is initially developed, based on the maximization of energy dissipation due to active vibration control action. Then, a novel constrained immune algorithm is presented to solve the integrated optimization problem with the discrete and continuous design variables. According to the characteristics of the optimization problem, a new problem-specific encoding scheme, some special "immune" operators and a novel antibody diversity computation method are proposed and discussed in detail. Finally, a numerical example of a 16-bar planar intelligent truss structure is presented to demonstrate the rationality and validity of this methodology, and some useful conclusions are obtained.