natural vibration analysis of plates represents an important issue in engineering applications. in this paper, a new and simplify method for vibration analysis of circular and rectangular plates is presented. the design of an effective robust controller, which consistently attenuates transverse vibration of the plate caused by an external disturbance force, is given. the dynamics of the plate i...

this paper evaluates a new and simple controller design method based on qft (quantitative feedback theory) for a two-link manipulator whose first link is rigid and the second is flexible. a piezoelectric patch is attached to the surface of the flexible link for vibration suppression of it. this system is modeled as a nonlinear multi-input multi-output (mimo) control systems whose inputs are two...

the locus of control is a construct reflecting beliefs about the control of behavior and life events. according to this perception, people are grouped into two main categories: an internal and external locus of control. the main purpose of this study was to investigate the relationship between wheat yield performance, locus of control and wheat growers’ (wg) characteristics. survey research met...