000009601 001__ 9601
000009601 005__ 20141205150222.0
000009601 04107 $$aeng
000009601 046__ $$k2008-10-12
000009601 100__ $$aBursi, Oreste
000009601 24500 $$aNovel Time Integrators Applied to Non-Linear Real Time and Pseudo-Dynamic Tests

000009601 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009601 260__ $$b
000009601 506__ $$arestricted
000009601 520__ $$2eng$$aReal-time testing with dynamic substructuring (RTDS) is a novel form of hybrid numerical-experimental testing technique used to simulate structures subjected to seismic loadings. By imposing compatibility and equilibrium conditions at the interface between the numerical substructure and the physical substructure, respectively, the substructures are made to interact in real time. In this paper, first we show the application to non-linear hybrid tests of L-stable Real Time compatible integrators derived from Rosenbrock methods. These algorithms are competitive in terms of stability and accuracy when applied to real time and stiff problems. In detail, the non-linear specimen considered is a spring pendulum coupled to a linear or a non-linear numerical oscillator implemented by means of the Bouc-Wen model. We also present a novel interfield parallel partitioned method applied to pseudo-dynamic (PsD) tests with dynamic substructuring (DS). In detail, the proposed coupling algorithm enables arbitrary Generalized-α schemes to be coupled with different time steps in each subdomain and represents an extension of an interfield parallel method originally proposed by Pegon and Magonette. Numerical experiments highlight the improved performance of the novel method in PsD simulations with respect to its progenitor.

000009601 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009601 653__ $$aReal time dynamic substructuring, real time compatible integrator, partitioned integrator, generalized-α methods

000009601 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009601 720__ $$aBursi, Oreste$$iHe, Leqia$$iVulcan, Leonardo$$iPegon, Pierre$$iWagg, David J.
000009601 8560_ $$ffischerc@itam.cas.cz
000009601 8564_ $$s660724$$uhttps://invenio.itam.cas.cz/record/9601/files/14-0226.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0226.
000009601 962__ $$r9324
000009601 980__ $$aPAPER