Procedure for compressing measured multidirectional load-time functions, in particular for evaluating the vibration resistance of structures

摘要

The gathering of load-time functions involves resulting stress-time functions of single axis component part stresses, which are computed from the measured multi-axes loading time functions. Each reversal point in the time functions of the single axis component part stresses is determined, which are associated with the non-damaging vibrational play. All the remaining damage relevant reversal points in the time functions of the component part stresses are marked. All the reversal points and the transients of the load-time functions are marked, which simultaneously occur with the reversal points damage relevant marked in all the computed time functions of the component part stresses. The load-time functions are reduced exclusively on these reversal points. The gathered load-time functions are computed, by computing the transition functions between the support points, and taking into consideration the rated output power values of the test machine, namely the limiting values of the speed, the acceleration and the frequency. IMAGE