VIBRATION TESTING SYSTEM AND METHODOLOGY

摘要

The present invention relates to a vibration testing system comprising a vibration testing apparatus. The vibration testing apparatus comprises a power amplifier operatively coupled to an electrodynamic shaker wherein the shaker comprises a vibrateable armature mechanically coupled to a payload support structure. A data logger is configured to measure and record respective values of one or more operational parameters of the electrodynamic shaker over time during mechanical excitation of the payload. A processor or controller of the vibration testing system is con- figured to read and process logged values of the one or more operational parameters and determining an accumulated number of armature force cycles based on the recorded values of the one or more operational parameters. The processor is further configured to computing a remaining service-life or a consumed service life of the electrodynamic shaker based on the accumulated number of armature force cycles and a predetermined service-life of the vibration testing apparatus. The processor is configured to indicating on a display of the vibration testing system the remaining service-life or the consumed service life of the vibration testing apparatus.