The health management concept was burgeoned as the application of engineering system. Several basic formulation definitions, such as health vector, health index, health function, were presented to mitigate the lack of formal concepts for the system health. Compared with the traditional condition parameters based component health description method, the engineering system level health condition can be effectively represented and the dynamic essence of health decrease can be revealed by using the health formulation definitions. Employing the Volterra series system description approach and analyzing the system through generalized frequency response function(GFRF), the system health vector was constructed based on the concepts of engineering system health, and the health of a kind of nonlinear system was monitored by the GFRF method. The nonlinear spring-mass-dashpot system was used as the research object. The relation between system health monitoring data and health index was given through simulation. And the simulated data show that the system health formulation definitions are effective and the system health monitoring approach based on GFRF is feasible.
Gao Zhanbao, Li Xingshan, Liang Xu, Yu Jinsong.Engineering system health formulation and health monitoring based on GFRF approach[J] JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(09): 1026-1030
Aaseng ��Gordon B. Blueprint for an integrated vehicle health management system AIAA IEEE Dig Avionics Syst Conf Proc.Orlando:IEEE,2001,1:3C11-3C111
Smeulers J P M, Zeelen R. PROMIS:a generic PHM methodology applied to aircraft subsystems Big Sky. Aerospace Conference Proceedings. Piscataway:IEEE Inc,2002:3153-3159
Gao Zhanbao, Li Xingshan, Liang Xu. Unknown input observer approach to engineering system health monitoring Qi Jiming, Cui Jianping. Conference Proceedings of the Seventh International Conference on Electronic Measurement & Instruments.Beijing:World Publishing Corpration,2005:432-438
����,�ź���,��¶.����ϵͳ�Ĺ�����Ϻ��ݴ����[M].����:��е��ҵ������,2000:6-7 Wen Xin,Zhang Hongyue,Zhou Lu.Fault diagnosis and fault-tolerant control for control system[M].Beijing:China Machine Press,2000:6-7(in Chinese)
�ܽ���,������,������.������ϵͳ���ۼ�Ӧ��[M].����:������ͨ��ѧ������,2001:172-180 Cao Jianfu,Han Chongzhao,Fang Yangwang.Theory and applications of nonlinear systems[M].Xi′an:Xi′an Jiaotong University Press,2001:172-180(in Chinese)
�Ż���.���ڵ���������С���˵�Volterra������ʶ����[J]. С���ͼ����ϵͳ,2004,25(12):2283-2286 Zhang Huajun. Volterra series identification method based on recursive least square algorithm[J].Mini-Microsystems,2004, 25(12):2283-2286(in Chinese)