Nuclear auxiliary pipe whip and whip restraint stress analysis

According to RCC-P, it is obligatory to adopt effective measure to prevent important system and device of nuclear power plant from damage caused by the pipe whip which contains high energy liquid. To equip protective shield (such as whip restraint) to separate important components is a common effective measure to avoid pipe whip. In order to verify if the whip restraint can withstand the pipe whip without inducing failure or large displacement, stress analysis of whip restraint is performed based on energy equilibrium method, and the results show that the whip restraint can withstand the pipe whip and its stress can meet the requirement of RCC-M Vol.ZF. (authors)