6533b7dbfe1ef96bd1270bd4
RESEARCH PRODUCT
Mode-superposition correction method for deterministic and stochastic analysis of structural systems
Salvatore BenfratelloG. Muscolinosubject
Dynamic correction methodModal analysisStructural systemMode-superposition methodMode-superposition methodsSuperposition principleDynamics of structuresGeneral Materials ScienceDynamics of structureDynamics of structures; Mode-superposition methods; Dynamic correction methodsCivil and Structural EngineeringMathematicsStochastic processMechanical EngineeringModal analysis using FEMMode (statistics)Computer Science Applications1707 Computer Vision and Pattern RecognitionModal analysiComputer Science ApplicationsModeling and SimulationStochastic optimizationMaterials Science (all)Settore ICAR/08 - Scienza Delle CostruzioniAlgorithmAnalytic functionDynamic correction methodsdescription
The role played by the modal analysis in the framework of structural dynamics is fundamental from both deterministic and stochastic point of view. However the accuracy obtained by means of the classical modal analysis is not always satisfactory. Therefore it is clear the importance of methods able to correct the modal response in such a way to obtain the required accuracy. Many methods have been proposed in the last years but they are meaningful only when the forcing function is expressed by an analytical function. Moreover in stochastic analysis they fail for white noise excitation. In the paper a method able to give a very accurate response for both deterministic and stochastic input is presented. This method is based upon the use of Ritz vectors together with the classical modal analysis. Numerical applications for both deterministic and stochastic inputs show the great accuracy of the proposed method. © 2001 Civil-Comp Ltd. and Elsevier Science Ltd. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-11-01 |