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Identification of the Mechanical Joint Parameters with Model Uncertainty 被引量:3
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作者 郭勤涛 张令弥 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2005年第1期47-52,共6页
Joint parameter identification is a key problem in the modeling of complex structures. The behavior of joint may be random due to the random properties of preload and joint geometries, contact surface and its finish, ... Joint parameter identification is a key problem in the modeling of complex structures. The behavior of joint may be random due to the random properties of preload and joint geometries, contact surface and its finish, etc. A method is presented to simulate the joint parameters as probabilistic variables. In this method the response surface based model updating method and probabilistic approaches are employed to identify the parameters. The study implies that joint parameters of some structures have normal or nearly normal distributions, and a linear FE model with probabilistic variables could illustrate dynamic characteristics of joints. 展开更多
关键词 joint parameter identification model updating model uncertainty response surface
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