Feedback Gain Sensitivities of Closed-Loop Modal Parameters of Controlled Structures

摘要: Computer algebra (MACSYMA) has been used to derive the characteristic polynomials that determine closed-loop frequencies and damping coefficients of output-feedba ck controlled structures. These expressions show explicitly how locations actuator/sensor pairs displacement velocity feedback gains influence parameters system modes. For lightly coupled modes, simple relations are obtained between modal coordinates sensor/actuator as well gains. Using example a cantilevered uniform beam by single pair, numerical results illustrate sensitivity closedloop placement pair Such help answer questions about optimal sensor/actuat or for active control flexible structure.