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1600 Brittmoore Rd Houston, TX 77043, USA
1600 Brittmoore Rd Houston, TX 77043, USA
180 Strathmoor Drive Sherwood Park, AB T8H 2B7

Fretting Issues On Conrod Bearings

Failed bearings and fretting phenomena on conrod

Stress and fatigue analysis

LocationLouisiana USA
ApplicationPoly-Ethylene production
Compressor TypeClark Reciprocating Compressor
ServiceEthylene make up
Power 3 MW
Disch. Pressure2000 bara

Challenge

  • Fretting phenomena on the back side of connecting rod bearings and conrod body
  • Big end cast aluminum bearing failure

Solution

  • RCA to assess the cause of the failure and confirm the fretting phenomena by FEM simulations
  • Big end bearing, studs and body reverse engineering and redesign to optimize contact pressure and avoid relative movement between bearing and big end
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