减少离散大系统两级镇定控制的保守性

The aim of this paper is to propose a new algorithm for multilevel stabilization of large scale systems. In two-level stabilization method, a set of local stabilizers for the individual subsystems in a completely decentralized environment is designed. The solution of the control problem involves designing of a global controller on a higher hierarchical level that provides corrective signals to account for interconnections effect. The principle feature of this paper is to reduce conservativeness in global controller design. Here, the key point is to reduce the effect of interactions instead of neutralizing them. In fact, unlike prior methods, our idea does not ignore the possible beneficial aspects of the interactions and does not try to neutralize them.     

Investigation of the Lamb Wave Modes Sensitivity in the Inspection of Bonding between Aluminum and Composite Patch

Russian Journal of Nondestructive Testing - Nowadays, composite patches are widely used to repair damaged metal structures in different industries. In order to assure the perfect performance of...