Share Email Print
cover

Proceedings Paper

Updating finite element model of structures with semi-rigid joints and boundary
Author(s): Yang Liu; Zhongdong Duan; Hao Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Updating the finite element models of structures with semi-rigid joints and boundary are studied. While most researches in this field are on updating semi-rigid joints with moment-rotation effect, in this paper a hybrid finite element to consider both the moment-rotation and shear-displacement effects of joint are proposed. The hybrid element is composed of a beam element with two connections at both ends, and the semi-rigidity of joints of both rotational and shear effects are simulated at the two ends. The stiffness matrix and mass matrix of the hybrid finite element are formulated. A hybrid optimization technique is applied to update structures with semi-rigid joints and boundary. The method proposed is experimentally studied by updating the finite element of a 14-bay beam. The results show that the method can produce an analytical model that better duplicates the dynamic property of actual structure while keep physical connectivity between them.

Paper Details

Date Published: 11 April 2006
PDF: 13 pages
Proc. SPIE 6174, Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems, 61743L (11 April 2006); doi: 10.1117/12.661010
Show Author Affiliations
Yang Liu, Harbin Institute of Technology (China)
Zhongdong Duan, Harbin Institute of Technology (China)
Hao Liu, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 6174:
Smart Structures and Materials 2006: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems
Masayoshi Tomizuka; Chung-Bang Yun; Victor Giurgiutiu, Editor(s)

© SPIE. Terms of Use
Back to Top