Spatial Filtering for the Control of Smart Structures

What follows is my personal perspective on early events that played a signi?cant role in the formation of the ?eld now known as Smart Structures. It is by no means meant to be all inclusive or de?nitive in any way, but merely an account of personal experiences that ultimately lead to the development of the material contained and presented herein. On March 23, 1983 then President Ronald Reagan announced his intentions to develop a new system to reduce the threat of nuclear attack and end the strategy of mutual deterrence in an address to the nation entitled, Address to the Nation on Defense and National Security. The system he proposed became known as Star Wars, after the popular movie, because it was meant to provide a protective shield over the nation from space. His speech mobilized the entire nation on a research and development path toward this end. Investigations were conducted into new areas such as space based radar, large aperture antennae and large ?exible mirror concepts. These proposed systems r- resented an entirely new class of structures that proved to provide new challenges in materials, structures, control systems and modeling. For example antennae needed to monitor large areas of real estate in the continental United States required ap- tures on the order of 100 m.

Develops Rigorous Design Methodologies and Performance Measures Includes supplementary material: sn.pub/extras

Klappentext

This book develops and details rigorous design methodologies and performance measures for the control of modern Smart Structures. The spatially distributed/continuum or distributed parameter nature of such structures makes it difficult to apply modern lumped parameter control philosophy and techniques to such designs. While there exist a substantial amount of technical literature on the Control of Distributed Parameter Systems (DPS), there are still relatively few applications or practical implementations of the theory. The work presented in this textbook address the issue of the design and implementation of distributed parameter control schemes, for Smart Structures, which exploit both spatially distributed sensing and actuation through the use of modern smart material technology. The merging of DPS with distributed parameter transducers leads to simple, physically realizable control system designs. This text provides a significant reference for practicing professionals, students and researchers in the area of transducer design using smart materials for high performance smart structures.

Inhalt
Smart Structure Systems.- Spatial Shading of Distributed Transducers.- Active Vibration Control with Spatially Shaded Distributed Transducers.- Multi-Dimensional Transforms and MIMO Representations of Smart Structures.- Performance Measures for Smart Structures with MIMO Representations.- Shape Control: Distributed Transducer Design.- Shape Control, Modal Representations and Truncated Plants.