Mr. Chairman and members of the Committee, I am Michael Replogle, and am pleased to testify today on behalf of Environmental Defense, a national organization with over 300,000 members nationwide, which I serve as Transportation Director. Our Living Cities program designs marketbased solutions to promote clean air, water and land in major metropolitan areas nationwide. Today I also represent the...

Active control methods can be used to eliminate undesired vibrations in engineering structures. Using piezoelectric smart structures for the active vibration control has great potential in engineering applications. In this thesis, numerical and experimental studies on active vibration control of mechanical systems and smart structures have been presented. An integrated analysis procedure has be...

Smart power grid is the future transformation of the current power systems into controlled two-way power flow networks. Smart grid allows the interactive service between customers and grid operators and permits fully integration of distributed and renewable energy resources into the electrical power system. The main objectives of the smart grid are to increase the efficiency, reliability and op...

Much of the recent and past work in the area of smart materials and structures has focused on analysis of actuators and actively controlled systems. Although many sophisticated analysis models have been developed, they are often coupled with ad hoc design methods or informal optimization procedures. A subset of the work done by the smart structures community has focused on development of formal...

In the present paper, a review on piezoelectric sensing of mechanical deformations and vibrations of so-called smart or intelligent structures is given. After a short introduction into piezoelectric sensing and actuation of such controlled structures, we pay special emphasis on the description of some own work, which has been performed at the Institute of Technical Mechanics of the Johannes Kep...