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Case Study: From Turbulence to Balance – A Coin-Solid Result with G&O Compensators

Background

A customer vessel was facing significant vibration issues from the main engine, especially at 92 RPM. Horizontal vibrations in 6th order exceeded 7 mm/s RMS, pushing both equipment and onboard conditions beyond acceptable thresholds.

High vibration levels like these increase fatigue on structural components and jeopardise the well-being of the crew, especially during longer voyages.

The Customers Challenge

The customer needed a solution that could significantly reduce horizontal engine vibrations without prolonging docking time or compromising engine performance

Solution: Installation of G&O Compensator

G&O Compensators installed one of its high-efficiency horizontal vibration compensators, designed specifically to absorb and counteract complex multi-order vibrations from two-stroke engines.

The installation included:

Result: 89.08% Vibration Reduction

After installation, vibration levels fell from over 7 mm/s RMS to well below 1 mm/s RMS in 6th order horizontal motion—a reduction of 89.08%.

This was not just visible in the data, but also in real-life onboard conditions.

“The ship became so calm after the installation that our technician could place a 20 DKK coin on its edge in front of the compensator—and it stayed upright.”
– Morten Kjæmpe, Head of Service & Technical Support, G&O Compensators

Impact

  • Major reduction in engine vibration
  • Notable reduction in hull stress
  • Significant reduction on stress in electrical equipment
  • Improved operational stability
  • Enhanced onboard comfort for crew
Photo documentation shows the standing coin in front of the active compensator

Visual Evidence

Before/after graph confirms the dramatic reduction in vibration
 Live RPM verification captured via control panel display at 91.8–92 RPM

Do you want to reduce vibrations on your vessel?

If your vessel suffers from critical vibrations, especially in slow steaming or high-load conditions, G&O Compensators offers tested, data-driven solutions tailored to your engine profile.