ABSTRACT
This chapter is concerned with actively controlling some of the response components, without creating accelerations in the structure during the process. It looks at convenient loading which will produce the negatives of the sensor measured responses so that at the end of the loading step these response components will revert back to their nominal values. An important issue in adaptive structures is how to compensate deviations from the nominal values, in p number of controlled response components. The chapter shows that in structural control, deformation inducing actuators should be preferred over the force inducing actuators when such options exist. It indicates the importance of the identification of observed response components and the placement of actuators. If an actuator induces force-type loading at the nodes, then it is called a force inducing actuator. For example, the attitude control jets of a spacecraft are force inducing actuators.
