Control for Energy Dissipation in Structures

Active vibration suppression of a large flexible space structure has been studied extensively in recent years. The studies include reduced-order modeling of structures with associated controller design. The main objectives of active control design are minimizing hardware and real-time computation while achieving efficient and robust control of the structure. Structure modeling and various control techniques are briefly discussed in this paper. Control designs based on state variable feedback are compared with an energy dissipation-based design. The effect of nonlinearities is considered by allowing saturation of the actuator control. The control design is experimentally implemented and compared with the numerical simulation. Critical issues related to experimental implementation are discussed. The energy dissipation control design is shown to be superior to others in light of the above-mentioned objectives.

[1]  L. Meirovitch,et al.  CONTROL OF SELF-ADJOINT DISTRIBUTED-PARAMETER SYSTEMS. , 1980 .

[2]  M. Balas.  Direct Velocity Feedback Control of Large Space Structures , 1979 .

[3]  Leonard Meirovitch,et al.  A comparison of control techniques for large flexible systems , 1983 .

[4]  Leonard Meirovitch,et al.  Elements Of Vibration Analysis , 1986 .

[5]  Naresh K. Sinha,et al.  Modern Control Systems , 1981, IEEE Transactions on Systems, Man, and Cybernetics.

[6]  J. He,et al.  Design of space structure control systems using on-off thrusters , 1981 .

[7]  S. Kahne,et al.  Optimal control: An introduction to the theory and ITs applications , 1967, IEEE Transactions on Automatic Control.

[8]  B.K. Walker,et al.  Modern control systems, 3rd ed. , 1982, Proceedings of the IEEE.

[9]  Mark J. Balas,et al.  Trends in large space structure control theory: Fondest hopes, wildest dreams , 1982 .

[10]  S. M. Joshi.  A controller design approach for large flexible space structures , 1981 .

[11]  T. Y. Yang,et al.  Dynamics and control of lattice beams using simplified finite element models , 1985 .

[12]  R. P. Iwens,et al.  Stability of Large Space Structure Control Systems Using Positivity Concepts , 1981 .

[13]  Robert E. Skelton,et al.  Space structure control design by variance assignment , 1985 .

[14]  Richard W. Longman,et al.  On the Number and Placement of Actuators for Independent Modal Space Control , 1984 .

[15]  J. L. Bogdanoff,et al.  ON THE DERIVATION OF EQUIVALENT SIMPLE MODELS FOR BEAM- AND PLATE-LIKE STRUCTURES IN DYNAMIC ANALYSIS , 1981 .

[16]  T. Vincent,et al.  Control for energy dissipation in structures , 1988 .

[17]  S. M. Joshi,et al.  Robustness properties of collocated controllers for flexible spacecraft , 1986 .

[18]  T. K. Caughey,et al.  A quasi-linear vibration suppression technique for large space structures via stiffness modification , 1985 .