Shackle chain wear test-rig

The test rig generates and measures wear in a single shackle contact and uses therefore full scale specimens with the correct geometry.

The test rig generates and measures wear in a single shackle contact and uses therefore full scale specimens with the correct geometry.

The test rig generates and measures wear in a single shackle contact and uses therefore full scale specimens with the correct geometry.

Features:

  • Possible to apply two types of relative motion between neighboring shackles: planar and circular
  • Harsh environmental conditions like seawater, sand or a mixture of both can be supplied
  • Tensile force up to 10 kN
  • Angle from 0° to 20°
  • Motion frequency of 0 to 1 Hz
  • max shackle size is D26P92

Application:

Industry uses link chains because of their beneficial strength to flexibility ratio, for example in hoists, snow chains, sand chains, ... E.g. in industrial fishing, link chains used for churning the seabed (tickler chains) have a lifetime of only six months.

Objective:

The wear rate is measured by weight reduction, volume reduction and chain elongation. The test rig can be used for the validation of new wear models or the comparison of materials.