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Fatigue Testing System: Integrating Hybrid Actuators' Feedback with Customer's Lab Test Software

Challenge

The United States DOE needed a servo-hydraulic fatigue testing actuator solution to exert a very high radial load test force on a bearing test stand and capture force and position data for data logging and tracking. They were interested in a standalone servo-actuated load testing machine that would avoid the use of an HPU with its associated hoses and cylinders, that was robust and ultra-reliable.

Kyntronics Solution

  • “Total Solution” high-force electric linear actuator rated up to 150,000 lbf. The system included the actuator, motor, cables, and control system in an enclosure with software.
  • Linear actuator with force and position feedback using servo control, integrated with the customer’s lab test software.
  • The actuator produced a sinusoidal wave motion profile.
  • Flexibility to expand to a higher force range in the future if needed.

Customer Benefits

  • High uptime and reliability. The system has produced over 25,000,000 cycles without interruption.
  • Eliminated the need for hydraulics, resulting in an environmentally friendly, sustainable solution.

Application Requirements

Stroke: 4″
Speed: .20 in/sec
Force: 126,000 lbf.

Industries

  • Energy

Product Used:

  • Hybrid Linear Actuation System – Total Solution
Discover High Force Electric Linear Actuators – SHA Series Total Solution
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Diagram of Turbine Shaft Bearing Load Tester Solution Actuator for Turbine Shaft Bearing Test System

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