No abstract

No abstract

The finite element method is a convenient approach to model the structures with complex geometry and subjected to complicated boundary conditions. However, the order of the obtained model using FEM strategy is large. Therefore, the control design and implementation based on the FEM model turns out to be complicated (sometimes not feasible). Hence, the order reduction techniques are inevitable to reduce the size of the system obtained with FEM. The reduced model is then used to explore and to optimize the system in terms of collocated actuator/sensor positioning problem. In this paper, we suggest a strategy to optimize the location of the electromechanical actuators in the car chassis subframe for vibration control. The proposed method can be formulated using an optimization problem with constraints which are introduced to consider the spill over effect resulted from the neglected higher modes in the model reduction part (which affects the stability of the closed loop system) and to ensure the minimum controllability of individual modes. The optimization algorithm is used to select three optimal positions of the collocated actuator/sensor among 298 possible positions.

NOVČANE OBAVEZE I RASKID UGOVORA REZIME: Ispunjenje ugovora je osnovni motiv zbog koga ugovorne strane zaključuju ugovor. Kada ugovarač ne ispuni svoje ugovorne obaveze, u tom slučaju ugovoru verna strana može da zahteva ispunjenje ili raskid ugovora. Autor se bavio analizom propisa koji uređuju raskid ugovora zbog neispunjenja novčane obaveze i uočio je određenu koliziju između zakonskih odredbi koje uređuju ovu materiju. Predmet analize su bila i normativna rešenja predložena Prednacrtom Građanskog zakonika, koja pokušavaju da otklone nedorečenosti i postojeće suprotnosti pozitivnopravnih propisa.