A method of piping flexibility analysis by deflection measurements in scale models.
Rauch, Charles F.
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Until the advent of the high-speed computer, engineers have spent untold hours with monotonous and lengthy computations when they have attempted analytical solutions of piping flexibility for even moderately simple configurations. Therefore, due to the complexity of this problem, several companies in both the United States and Europe are using model tests today as both an accepted independent method of piping flexibility analysis and as a check on analytical results. Heretofore, model test systems have utilized direct force-measuring instruments at the extremities of the branches. This thesis describes a method by which translational and angular deflection measurements are made a distance from the anchored ends so that with these displacements, reaction forces and moments may be computed at the extremities by use of simple statics and cantilever beam deflection formulas. The thesis also describes a practical and simple device to accomplish this purpose, reports on actual tests of several typical configurations, and compares the results so obtained with those given by analytical solution.
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