Vibration Time History Testing Gets a Feel for the Road

摘要

Conventional random vibration tests are based on averaged data from spectrum analyzers that, by definition, discounts infrequently occurring events. Advanced methods of data acquisition and real-time, closed-loop shaker control now can perform actual time history vibration testing in the lab. Time history tests replicate the field environment without ignoring individual events, more effectively bridging the gap between the actual vibration environment and laboratory testing.