System for predicting life of a rotary machine, method for predicting life of a manufacturing apparatus which uses a rotary machine and a manufacturing apparatus

A method for predicting life of a manufacturing apparatus using a rotary machine, comprising:

• measuring time series data of a peak acceleration of the rotary machine;
• filtering an analog signal of the time series data of the peak acceleration measured by the vibration gauge in a frequency band including a first analysis frequency expressed as a product of an equation including a number of rotor blades of the rotary machine and a normal frequency unique to the rotary machine;
• and
• predicting a life span of the rotary machine by characteristics of the filtered analog data of the time series data of the peak acceleration with the first analysis frequency.

A manufacturing apparatus, comprising:

• a rotary machine;
• a vibration gauge configured to measure time series data of a peak acceleration of the rotary machine;
• a band pass filter configured to filter an analog signal of the time series data of the peak acceleration measured by the vibration gauge in a frequency band including a first analysis frequency expressed as a product of an equation including a number of rotor blades of the rotary machine and a normal frequency unique to the rotary machine;
• and
• a data processing unit configured to predict a life span of the rotary machine by characteristics of the filtered analog data of the time series data of the peak acceleration with the first analysis frequency.