<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents a sensitivity analysis related to the solution of a stationary, linear system of second order equations of motion obtained by the Finite Element Method. The Direct Differentiation Method was presented in this paper. The essence of this method is the explicit differentiation of the system of equations with respect to parameters. As a result, derivatives of vectors and matrices are obtained. The necessary material derivatives of vectors and matrices associated with the simplest 3D beam element are presented. Sensitivity analysis consists in searching for changes in physical quantities in relation to selected parameters. Ultimately, the sensitivity analysis comes down to calculating derivatives of specific functions with respect to parameters. Real and continuous design variables are considered.</p></abstract>

This paper presents a sensitivity analysis related to the solution of a stationary, linear system of second order equations of motion obtained by the Finite Element Method. The Direct Differentiation Method was presented in this paper. The essence of this method is the explicit differentiation of the system of equations with respect to parameters. As a result, derivatives of vectors and matrices are obtained. The necessary material derivatives of vectors and matrices associated with the simplest 3D beam element are presented. Sensitivity analysis consists in searching for changes in physical quantities in relation to selected parameters. Ultimately, the sensitivity analysis comes down to calculating derivatives of specific functions with respect to parameters. Real and continuous design variables are considered.

Sensitivity analysis of the dynamic response of a frame. Part I: Direct differentiation method

Technical Transactions

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This paper presents a sensitivity analysis related to the solution of a stationary, linear system of second order equations of motion obtained by the Finite...

Sensitivity analysis of the dynamic response of a frame. Part I: Direct differentiation method

Publié en ligne: 23 mai 2020

Pages: 119 - 134

Reçu: 21 mai 2019

DOI: https://doi.org/10.4467/2353737XCT.19.065.10618

Mots clés
sensitivity analysis, direct differentiation method, explicit differentiation

© 2019 Olga Dąbrowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Sensitivity analysis of the dynamic response of a frame. Part I: Direct differentiation method

Publié en ligne: 23 mai 2020

Pages: 119 - 134

Reçu: 21 mai 2019

DOI: https://doi.org/10.4467/2353737XCT.19.065.10618

Mots cléssensitivity analysis, direct differentiation method, explicit differentiation

© 2019 Olga Dąbrowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 Public License.

Mots clés
sensitivity analysis, direct differentiation method, explicit differentiation