Design optimization for the magnetic engine valve actuator

Hyun Jun Soh, Soon Ok Park, Jeonghoon Yoo

Research output: Contribution to journalArticlepeer-review


As the automobile energy efficiency stands out an important matter of interest, the magnetic engine valve system receives attention. It has an advantage of no engine power leakage in opening and closing the valve. Moreover, it generates much bigger force than the piezo actuator system, so it can be a good alternative system of the cam and camshaft system. However, since the valve system is not light enough, it is necessary to make its weight reduce. In this study, topology optimization is applied to find the optimal shape of the armature in a magnetic valve system combined with the finite element analysis for the magnetic field analysis. The result is used to obtain a concept design. The adjoint variable method is employed in order to calculate the design sensitivity of the magnetic driving force in the armature component mostly to reduce the computational time during the repeated sensitivity calculation. The sequential linear programming is employed for the optimization algorithm.

Original languageEnglish
Pages (from-to)584-589
Number of pages6
JournalTransactions of the Korean Society of Mechanical Engineers, A
Issue number6
Publication statusPublished - 2009 Jun

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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