The computational problems associated with the estimation of damping, particularly in piping systems, is discussed in detail and appropriate procedures are recommended to minimize their impact. The theoretical background and the related basic assumptions in each of these methods is given first in order that the approximations introduced in practical problems is better understood. This understanding then leads to alternative procedures where more adequate and useful results are expected. The objective of this effort is to help homogenize the existing damping data by the use of systematic procedures and hence to reduce the variability of damping estimates in piping systems.

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