05-04: Natural Frequency Characteristics of Drive Shafts Fills By performing thorough annual inspections

By performing thorough annual inspections as described

Tests using mixed-oxidant solution instead of oxidizing biocides (chlorine or bromine) for cooling tower maintenance

Vibrations levels in the region of the natural frequency are empirically determined for composite drive shafts and multiple test methods for determining the natural frequency are described and compared

particularly the fire-retardant grades

05-04: Natural Frequency Characteristics of Drive Shafts Fills By performing thorough annual inspectionsFor rotating machinery utilizing drive shafts, it is important to operate at a speed sufficiently lower than the drive shaft's natural frequency to prevent destructive vibration. In this paper, the theory of determining the shaft's natural frequency is presented as well as methods for empirically testing a shaft's natural frequency. Vibrations levels in the region of the natural frequency are empirically determined for composite drive shafts and