And on this foundation, using coupling mode control theory on the basis of LQR to control the vibration of the piezoelectric smart beam, and using independent mode control theory on the basis of LQR to control the vibration of the piezoelectric smart plate.
The rational position of PZT on cantilever beams was determined based on the vibration control principle of piezoelectric actuator and the strain equation for beam surface. With the independent mode control method,an experimental study was performed on the active vibration control of flexible cantilever beams.
4.We form an aggregate objective function which includes control performance, total mass and the natural frequency. The objective function and constraint functions include not only the conventional structure design indexes but also vibration control indexes. The control design variables and structure design variables are optimized simultaneously by using the method of independent mode space.
Then an independent modal space control algorithm (IMSC) is performed on this optimal structure to reduce the dynamic response.
The optimal action of actuators is automatically calculated by applying the independent modal space control concept.
Based on the approach of independent modal space control, the controllability and observability indices of the system related to the positions of actuators/sensors are demonstrated.
Stochastic independent modal-space control of distributed-parameter systems
It is shown that a particular choice of the Kalman function, in conjunction with the independent modal-space control method, leads to an infinite set of independent second-order modal-space Kalman filters cascaded with spatial modal filters.
The collective energy dissipation is suggested to originate from the Fermi surface deformation which is treated as a kinematically independent mode of motion within the canonical Lagrange-Rayleigh dynamics.
A density-independent mode |ω|/Ωi?1 has been found which agrees with the experimentally found value, whereΩi is the ion cyclotron frequency.
The maximal positive inotropic effect remained unchanged after the addition of carbachol (1 mmol/l), indicating a cAMP-independent mode of action of S(-)BDF 9196.
Results of independent mode models of molecular vibrations of SO2 and H2O are compared to converged eigenvalues and eigenfunctions.
Of the coordinates we considered, an independent mode model based on rectilinear normal coordinates provides the best description of the energetics yet provides the poorest description of the eigenfunctions.
Space-independent modality-driven attentional capture in auditory, tactile and visual systems
In this paper, a method of calculating the independent modality control of linear systems is introduced. This calculation method is very con venient, when the systems are uncontrollable but the positioning modalities are controllable. Some examples are given to illustrate the application of the results obtained in this paper.
A simple,yet efficient method is proposed for the active vibration control od MDOF systems subjectedto arbitrary excitation.Based on the concept of independent modal-space control,the primary system is de-coupled into a set of independent SDOF systems and each predominant mode is controlled independentlythrough feedback control.Moreover,an efficient method is also developed for the optimization ot the sensorlocations.