000012110 001__ 12110
000012110 005__ 20141205160020.0
000012110 04107 $$aeng
000012110 046__ $$k2008-10-12
000012110 100__ $$aWu, Bin
000012110 24500 $$aCentral Difference Method for Real-Time Substructure Test Considering Specimen Mass

000012110 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012110 260__ $$b
000012110 506__ $$arestricted
000012110 520__ $$2eng$$aThis paper studies the stability of the central difference method (CDM) for real-time substructure test considering specimen mass. To obtain correct reaction inertia force, an explicit acceleration formulation is assumed for the CDM. The analytical work shows that the stability of the algorithm decreases with increasing specimen mass if the experimental substructure is a pure mass. The algorithm becomes unstable whatever the time integration interval, i.e. unconditionally unstable, when the mass of specimen equal or greater than that of its numerical counterpart. For the case of dynamic specimen, the algorithm is unconditionally unstable when there is no damping in the whole test structure; a damping will make the algorithm stable conditionally. Part of the analytical results is validated by an actual test.

000012110 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012110 653__ $$areal-time substructure test, stability, inertia force, central difference method

000012110 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012110 720__ $$aWu, Bin$$iDeng, Lixia$$iYang, Xiandong
000012110 8560_ $$ffischerc@itam.cas.cz
000012110 8564_ $$s596602$$uhttps://invenio.itam.cas.cz/record/12110/files/12-03-0090.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-03-0090.
000012110 962__ $$r9324
000012110 980__ $$aPAPER