Loads of piping systems due to malfunctions of snubbers

Optimum X-plate dampers for seismic response control of piping systems

“…It is very difficult to frequently inspect snubbers in the high-radiation conditions that exist in nuclear power plants and there are huge costs required for yearly maintenance of snubbers. Moreover, malfunctioning of snubbers develops undesired loads [3] on the piping systems thus questioning their safe functioning.…”

Evaluation of viscous damper on the vibration transmission to the piping system and the support structure exposed to sinusoidal vibration in vertical, horizontal, and lateral directions.

“…The required increase in power production was achieved by increasing the flow velocity in the feed and steam piping system resulting in excessive vibration in the system [1] To address these piping vibration issues, extensive research has been carried out to analyse the causes of the vibration and mitigation steps that can be carried out to reduce the piping vibration. It has been reported that visco-damper was able to successfully address piping vibration issues in a variety of cases when compared to the use of snubbers, to address the same vibration issues [7,8]. This is because the visco-damper are more flexible, or 'softer', when compared to snubber [4].…”