期刊论文

Cai, Zhiqin

Cai, ZQ (reprint author), Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

Zhang, Yibei,Li, Xuefu,Jin, Bingbing

2016-08-01

INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS

SCIE、EI、Scopus

J

13

4,SI

0219-8762

Vibration control; decentralized control theory; LQ optimal control method; eigenvalue control method; precise integration method

In this paper, vibration control algorithms for a large space truss structure are investigated. First, a precise integration method is used to solve the differential equation such that the validity and efficiency of the algorithm are guaranteed. Second, on the basis of the discrete algebraic equation combined with the decentralized control theory, the solving method of the control force based on the linear quadratic (LQ) optimal control theory is improved. Third, a new control method, the eigenvalue control method, is proposed in this paper, and its relationship with the LQ optimal control method is discussed. Finally, these two control methods are applied to the structure to analyze the effectiveness of vibration suppression. The simulation results show that the proposed algorithms can quickly suppress the vibration of a large space truss structure.