Structural damage detection and identification using fuzzy logic

Although improved design methodologies have significantly enhanced the reliability and safety of structures in recent years, it is still not possible to build structures that are infallible. There is an increasing interest in the development of smart structures with built-in fault detection systems that would provide damage and/or failure warnings. A general methodology is presented for structural fault detection using fuzzy logic. The methodology is based on monitoring the static, eigenvalue, and dynamic responses to determine the health status of a structure or machine. Fuzzy logic coupled with principles of continuum damage mechanics is used to identify the location and extent of the damage. The proposed methodology represents a unique approach to damage detection that can be applied to a variety of structures used in civil engineering and machine and aerospace applications.

[1]  Tai-Yan Kam,et al.  DETECTION OF CRACKS IN STRUCTURES USING MODAL TEST DATA , 1992 .

[2]  Chin-Teng Lin,et al.  Neural-Network-Based Fuzzy Logic Control and Decision System , 1991, IEEE Trans. Computers.

[3]  Nikos A. Aspragathos,et al.  Identification of crack location and magnitude in a cantilever beam from the vibration modes , 1990 .

[4]  Poyu Tsou,et al.  Structural damage detection and identification using neural networks , 1993 .

[5]  F. J. Soeiro,et al.  Structural damage detection based on static and modal analysis , 1989 .

[6]  A. Ganino,et al.  Damage Detection Using Neural Networks: An Initial Experimental Study on Debonded Beams , 1994 .

[7]  Prabhat Hajela,et al.  Damage Detection in Structures Based on Feature‐Sensitive Neural Networks , 1994 .

[8]  J. M. Montalvão E Silva,et al.  Experimental dynamic analysis of cracked free-free beams , 1990 .

[9]  R. A. Manning,et al.  Structural damage detection using active members and neural networks , 1994 .

[10]  Timothy J. Ross,et al.  DAPS: Expert System for Structural Damage Assessment , 1990 .

[11]  George C. Lee,et al.  A Structural Damage Neural Network Monitoring System , 1994 .

[12]  Solomon Henry Simon.  Neural network/expert system-hybrid which identifies untrained damage , 1993, Smart Structures.

[13]  Lotfi A. Zadeh,et al.  Fuzzy Sets , 1996, Inf. Control..

[14]  J N Kudva,et al.  Damage detection in smart structures using neural networks and finite-element analyses , 1992 .

[15]  William B. Spillman,et al.  Neural network damage detection in a bridge element , 1993, Smart Structures.