Determination of Dynamic Loads in Coach Structures

ALTHOUGH many stress problems remain to be solved, the authors emphasize the important role instrumentation is playing in bringing closer to realization the structural engineer's goal of a coach that is 100% service free.

They explain the operation and use of strain gages, especially the SR-4 resistance-wire strain gage, in analyzing the dynamic loads occurring in coach structures. They also cover the electronic instruments that must be used in conjunction with this gage and give several examples of the practical application of such equipment.