会议论文详细信息
9th International Conference on Tribology
Sliding contact on the interface of elastic body and rigid surface using a single block Burridge-Knopoff model
Amireghbali, A.^1 ; Coker, D.^1,2
Department of Aerospace Eng., METU, Ankara, Turkey^1
METU Center for Wind Energy (METUWIND), Ankara, Turkey^2
关键词: Burridge-Knopoff model;    Constant velocities;    Dynamics of interfaces;    Mass-spring models;    Nonlinear ordinary differential equation;    Numerical integration methods;    Sliding contacts;    State-dependent;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/295/1/012031/pdf
DOI  :  10.1088/1757-899X/295/1/012031
来源: IOP
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【 摘 要 】

Burridge and Knopoff proposed a mass-spring model to explore interface dynamics along a fault during an earthquake. The Burridge and Knopoff (BK) model is composed of a series of blocks of equal mass connected to each other by springs of same stiffness. The blocks also are attached to a rigid driver via another set of springs that pulls them at a constant velocity against a rigid substrate. They studied dynamics of interface for an especial case with ten blocks and a specific set of fault properties. In our study effects of Coulomb and rate-state dependent friction laws on the dynamics of a single block BK model is investigated. The model dynamics is formulated as a system of coupled nonlinear ordinary differential equations in state-space form which lends itself to numerical integration methods, e.g. Runge-Kutta procedure for solution. The results show that the rate and state dependent friction law has the potential of triggering dynamic patterns that are different from those under Coulomb law.

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