Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Thomas K. Caughey"'
Publikováno v:
Nonlinear Dynamics. 39:95-112
A general procedure is presented for analyzing dynamic response measurements from complex multi-degree-of-freedom nonlinear systems incorporating arbitrary types of nonlinear elements. The analysis procedure develops a reduced-order, nonlinear model
Publikováno v:
International Journal of Non-Linear Mechanics. 39:1111-1127
Building on the basic idea behind the Restoring Force Method for the non-parametric identification of non-linear systems, a general procedure is presented for the direct identification of the state equation of complex non-linear systems. No informati
Autor:
Sami F. Masri, Thomas K. Caughey, Anastassios G. Chassiakos, Andrew W. Smyth, Elias B. Kosmatopoulos
Publikováno v:
International Journal of Non-Linear Mechanics. 37:1435-1451
Adaptive estimation procedures have gained significant attention by the research community to perform real-time identification of non-linear hysteretic structural systems under arbitrary dynamic excitations. Such techniques promise to provide real-ti
Publikováno v:
Journal of Engineering Mechanics. 126:666-676
A nonparametric structural damage detection methodology based on nonlinear system identification approaches is presented for the health monitoring of structure-unknown systems. In its general form, the method requires no information about the topolog
Publikováno v:
Journal of Applied Mechanics. 67:540-551
A comprehensive experimental study is presented to assess the utility of a proposed structural health monitoring and damage detection methodology based on vibration signature analysis of the test article. The approach uses a time-domain least-squares
Publikováno v:
Journal of Engineering Mechanics. 125:123-132
A relatively simple stochastic optimization procedure based on the adaptive random search algorithm is presented to train artificial neural networks of the type encountered in applied mechanics applications. After discussing some essential features o
Publikováno v:
Journal of Engineering Mechanics. 125:133-142
A method based on adaptive estimation approaches is presented for the on-line identification of hysteretic systems under arbitrary dynamic environments. The availability of such an identification approach is crucial for the on-line control and monito
Publikováno v:
Earthquake Engineering & Structural Dynamics. 27:997-1010
A neural network-based approach is presented for the detection of changes in the characteristics of structure-unknown systems. The approach relies on the use of vibration measurements from a 'healthy' system to train a neural network for identificati
Publikováno v:
Journal of Applied Mechanics. 65:194-203
Using adaptive estimation approaches, a method is presented for the on-line identification of hysteretic systems under arbitrary dynamic environments. The availability of such an identification approach is crucial for the on-line control and monitori
Publikováno v:
Journal of Fluids Engineering. 119:768-774
This paper reports an experimental investigation of the rotordynamic forces that occur in a whirling three bladed inducer under the influence of cavitation. The effect of lowering the flow coefficient (and thus causing reverse flows) on these forces