A systematic procedure to construct the (symmetric) static-stiffness, damping and mass matrices representing the unbounded medium is presented addressing the unit-impulse response matrix corresponding to the degrees of freedom on the structure-medium interface. The unit-impulse response matrix is fi
PROPERTY MATRICES IDENTIFICATION OF UNBOUNDED MEDIUM FROM UNIT-IMPULSE RESPONSE FUNCTIONS USING LEGENDRE POLYNOMIALS: IMPLEMENTATION AND EXAMPLES
โ Scribed by PARONESSO, A.; WOLF, J. P.
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 576 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0098-8847
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โฆ Synopsis
The input and other implementation issues for the system identification procedure addressing the unit-impulse response matrix based on Legendre polynomials in the time domain to calculate the static-stiffness, damping and mass matrices of an unbounded medium are discussed. Clear guidelines are provided. High accuracy can be achieved even when the time range of the calculated unit-impulse response matrix is small (which may be necessary for computational efficiency) if the static-stiffness matrix is enforced.
๐ SIMILAR VOLUMES
Starting from the unit-impulse response matrix of the unbounded medium, a discrete-time formulation permitting the recursive evaluation of the interaction forces and a continuous-time formulation yielding property matrices corresponding to a model with a finite number of degrees of freedom are discu