A New Shock Model for Systems Subject to Random Threshold Failure Year: 2008 Volume: 2 Issue: 11 1261 - 1266 Pages Authors: A. Rangan A. Tansu Abstract: This paper generalizes Yeh Lam-s shock model for renewal shock arrivals and random threshold. Several interesting statistical measures are explicitly obtained. A few special cases and an optimal replacement problem are also discussed. Keywords: shock model optimal replacement random threshold shocks.