A fuzzy logic system (FLS) is developed for ground based health monitoring of a helicopter rotor blade. Structural damage is modeled as a loss of stiffness at the damaged location that can result from delamination. Composite materials, which are widely used for fabricating rotor blades, are susceptible to such delaminations from barely visible impact damage. The rotor blade is modeled as an ela...

Using the potential surface of Essers, Tennyson, and Wormer in [Chem. Phys. Lett. 89 (1982) 223], we show that the system of bending vibrational states of the isomerizing molecule LiNC/NCLi has monodromy. On the basis of a deformed spherical pendulum model, we explain dynamical and geometric reasons of this phenomenon and of its absence in the similar system HCN/CNH. 2003 Elsevier B.V. All righ...

Abstract When spin rotating devices are used in an electron accelerator ring the stochastic depolarization caused by synchrotron radiation becomes issue. Special design of optics is required order to minimize harmful effect depolarization. Ring adjustments which help called matching. In this lecture formalism for deriving matching conditions presented. Then, derived examples a rotator based on ...