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Case Study:
Engine Weight Reduction

Commercial Vehicle Engine OEM

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


  • 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.


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

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