A time-step insensitive recurrent approach to analyze non-stationary random responses

• Autorzy: Chen K. F. , Zhang Q. , Zhang S. W.
• Języki publikacji: EN

Abstrakty

EN

The recurrent approach constructed via the stochastic central difference (SCD) is a very fast method for analyzing non-stationary random responses. However, the computational results depend to a great extent upon the discrete time-step size. A new recurrent approach is proposed in this report. It is based on the theory of linear differential equations. Theoretical analysis shows that this algorithm is unconditionally stable for all damped systems. Two examples show that the proposed approach is not sensitive to the time-step.

Słowa kluczowe

EN

non-stationary response; linear differential equations; variance; finite differences; stochastic central difference

PL

równanie różniczkowe liniowe; wariancja; stochastyczne różnice centralne; różnice skończone

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2009
• Tom: Vol. 16, No. 1
• Strony: 1--9
• Opis fizyczny: Bibliogr. 17 poz., tab., wykr.

Twórcy

autor

Chen K. F.

autor

Zhang Q.

autor

Zhang S. W.

• China Agricultural University, College of Sciences P.O. Box 74, East Campus, Beijing 100083, P.R. China

Bibliografia

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