Attenuation zones of periodic pile barriers with initial stress

摘要: Abstract Periodic pile barriers exhibit unique dynamic property, i.e., the frequency attenuation zones. When wave frequencies fall in zones, amplitude of elastic waves could be reduced by periodic barriers. In present paper, out-of-plane propagating two-dimensional are investigated. A novel numerical approach based on weak form quadrature element method (WFQEM) is developed to study effect initial stress zones The proposed verified with significant advantages both accuracy and convergence regard lumped-mass (LMM) particular cases. theoretical results show that significantly alters position width however, it does not affect maximum coefficient. addition, finite number unit cells simulated at end this paper. obtained paper very useful for design application ambient vibration reduction.