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State Feedback Control With Time Delay, Akshay Nareshraj Singh
State Feedback Control With Time Delay, Akshay Nareshraj Singh
LSU Doctoral Dissertations
In this thesis we start with an introduction to the theory of vibration control. We broadly classify the control methods into passive and active schemes. We introduce the problem of state feedback control and provide the classical solution in the form of Ackermann formula. We then identify the limitations of the classical approach and present the more elegant solution of partial pole assignment without spillover. We highlight the problem with model uncertainties and describe the method of pole assignment using data from measured receptances. This approach is extended for pole assignment for a linear vibrating system by using state feedback …
System Identification Of Bridge And Vehicle Based On Their Coupled Vibration, Lu Deng
System Identification Of Bridge And Vehicle Based On Their Coupled Vibration, Lu Deng
LSU Doctoral Dissertations
Most current techniques used for system identification of bridges and vehicles are static-test-based methods. Methodologies that can use bridge dynamic responses or modal information are highly desirable and under development. This dissertation aims to develop new identification methodologies for bridge-vehicle systems using the bridge dynamic responses and modal information. A new bridge model updating method using the response surface method (RSM) was proposed in this dissertation. The RSM was used to design experiments in order to find out the relationships between the bridge responses and parameters to be updated. Results from numerical simulations and a field study show that the …