large space structures;
modal control;
nonlinear control systems;
state estimation;
vibration active damping;
D O I:
10.1016/0967-0661(96)00070-6
中图分类号:
TP [自动化技术、计算机技术];
学科分类号:
0812 ;
摘要:
This paper deals with the problem of active vibration suppression in a laboratory model of a large flexible space structure, using nonlinear control laws. The basic control strategy is first presented in the simplified case of a one-degree-of-freedom mechanical oscillator; the results of this analysis are then used for the synthesis of two different controllers for the truss structure, one employing on-off air jet thrusters and the other employing piezoelectric active members as actuators. Experimental results obtained with the first controller are also given.