One of the good solutions for vibration monitoring equipment with a constant rotation speed is using "Online" condition monitoring system. The accelemeters should be installed on the objects and be connected to a measurement unit. The measurement unit collects the data from the condition of the equipment with a time interval and send it to computer software as the database. Here are some suggestions of publications in this regard:
Conference Paper Implementation of Condition Based Maintenance in Manufacturi...
Conference Paper Online Condition Monitoring of Gas Circulation Fans in Harde...
Conference Paper Condition Based Maintenance of Machine Tools: Vibration Moni...