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Case Study:
Engine – Weight Reduction

Client
Commercial Vehicle Engine OEM

Objective
Reduce weight of crankcase without sacrificing its capacity to withstand peak firing pressure

Scope

  • Perform thermo-structural analysis on engine assembly using: thermal loads determined from coolant jacket CFD anlaysis; firing loads determined from crankshaft dynamic analysis; and assembly loads including bolt pretension and mechanical interference
  • Provide design recommendations for crankcase weight optimisation taking into account manufacturability.

Success

  • Crankcase weight reduced by over 8%
  • Fatigue safety factors increased in critical areas

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