The PBS-4100R+ Vibration and Balancing System for Test Cell Applications

The PBS-4100R+ is the successor to the popular PBS-4100R series vibration and balancing system. It comes with new features and provides extensive vibration monitoring and analysis capabilities coupled with the quickest possible "one-shot" balancing solutions.

The PBS-4100R+ is a complete vibration analysis and trim balancing system that is designed specifically for test cell applications. It has been engineered to meet all of the users testing requirements.

An extensive library is available with pre-programmed engine parameters for most aircraft and industrial gas turbine models. These parameters reflect the most common and standard test parameters. However, users can also alter the parameters to customize the system to their specific testing needs.

turbine vibration vs time

General Accuracies

Speed (rpm)
Data via Digital Data Interface (DDI) Data via Analog Output
0.02%3 0.05%3

 

Vibration
Acceleration Input2/Velocity Output
Tracked Broadband Phase
0.5% typical 1.0% max 0.5% typical ±1° max
Acceleration Input2/Displacement Output
Tracked Broadband Phase
0.5% typical 1.0% max 0.5% typical ±1° max
Velocity Input/ Velocity Output
Tracked Broadband Phase
0.5% typical 1.0% max 0.5% typical ±1° max
Velocity input/Displacement Output
Tracked Broadband Phase
0.5% typical 1.0% max 0.5% typical ±1° max

 

Features

The key features of the PBS-4100R+ Vibration and Balancing System are as follows:

  • Up to 3 speed channels to enable testing of three-spool engines
  • Up to 8 vibration channels to support experimental testing
  • Up to 32 analog output channels to drive test cell meters and instrumentation
  • Rapidly reduce vibrations using the WinPBS Balance Wizard
  • Can balance engines that display vibration peaks at up to 20 speeds
  • Vibration readings are converted and displayed in preferred units
  • Display vibration data in many different formats including bar graphs, tables, and X-Y plots
  • Optional remote operation via Ethernet for test cell facilities or power plant engineering access

Applications

The main applications of the PBS-4100R+ Vibration and Balancing System are given below:

  • Overhaul testing
  • Military test cells
  • Acceptance testing
  • Vibration diagnostics
  • Engine manufacturing final tests
  • Test cell upgrades commercial test cells
  • Trim balancing experimental testing

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