摘要
由于噪声和系统特性的影响,载荷识别问题往往是不适定的,为了克服该问题获得稳定解,一般采用正则化技术来处理,可是直接利用传统正则化方法重构载荷,识别出的载荷的精度不是很高,本文提出采用一种改进正则化方法,数值仿真结果表明该方法能够有效地抑制噪声的影响,从而更精确的识别出载荷。
Due to the influence of noise and system property,a load identification problem is always ill-posed,in order to deal with this issue,it is necessary to use the regularized technique.Here,an improved regularized technique was proposed to get the stable solution.Numerical tests were made to verify the proposed method,and the results were compared with those identified using the traditional Tikhonov regularization method.It was shown that the proposed method gives better results than the traditional Tikhonov regularization method does.
出处
《振动与冲击》
EI
CSCD
北大核心
2015年第11期146-149,共4页
Journal of Vibration and Shock
关键词
不适定
正则化
稳定解
载荷识别
状态空间
ill-posed
regularization
stable solution
load identification
state space
