Numerical and Experimental Stress Analysis of an Internal Combustion Engine Valve During the Closing Event

Paper #:
  • 2012-36-0491

Published:
  • 2012-10-02
DOI:
  • 10.4271/2012-36-0491
Citation:
Zenklusen, F., Cavalieri, F., Luengo, C., Risso, J. et al., "Numerical and Experimental Stress Analysis of an Internal Combustion Engine Valve During the Closing Event," SAE Technical Paper 2012-36-0491, 2012, doi:10.4271/2012-36-0491.
Pages:
9
Abstract:
Valve engine manufactures have to satisfy the demands of a market that requires to increase the strength of their products and to extend the time between servicing.In a combustion engine valve, the mechanical stresses are generated during the closing event by loads coming mainly from the return spring, the inertia loads of retainer, keeper and stem, closing velocity, valve tilt and the thermal loads from the combustion.The objective of this work is to understand the valve closing process, and to predict numerically the maximum stresses in new valve designs in a shorter time and at lower costs compared with experimental procedures. In this work, the experimental valve stem stress response under impact velocity was registered using strain gauges and then compared by Finite Element Method solutions showing good agreement.
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