Manufacturing Technology Today

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Selective Assembly for a Valve Train Assembly Using Memetic Algorithm


Affiliations
1 Dept. of Mech. Engg., K L N College of Engg., Pottapalayam, Sivagangai Dist., TN, India
2 Dept. of Mech. Engg., Velammal College of Engg. and Technology, Madurai, India
3 Dept. of Manufacturing Engg., Anna University, Chennai, India
     

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Selective assembly is an approach for reducing the overall variation and thus improving the quality of an assembled product. Selective assembly method can achieve tight assembly tolerance when the components are manufactured with wider tolerances. This approach is often less costly than a tolerance design using tighter specifications on individual components. It leads to high quality assembly from relatively low precision components. In this paper a valve train assembly with three mating parts (cam shaft, tappet, valve stem) is considered for analysis. Subsequently, a memetic algorithm is used to obtain the best combination of selective groups. Based on the best combination obtained the assembly is done in three stages to completely use all the components. The variation in clearance is minimized and the surplus parts are reduced to a great extent.
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  • Selective Assembly for a Valve Train Assembly Using Memetic Algorithm

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Authors

A. Asha
Dept. of Mech. Engg., K L N College of Engg., Pottapalayam, Sivagangai Dist., TN, India
S. M. Kannan
Dept. of Mech. Engg., Velammal College of Engg. and Technology, Madurai, India
V. Jayabalan
Dept. of Manufacturing Engg., Anna University, Chennai, India

Abstract


Selective assembly is an approach for reducing the overall variation and thus improving the quality of an assembled product. Selective assembly method can achieve tight assembly tolerance when the components are manufactured with wider tolerances. This approach is often less costly than a tolerance design using tighter specifications on individual components. It leads to high quality assembly from relatively low precision components. In this paper a valve train assembly with three mating parts (cam shaft, tappet, valve stem) is considered for analysis. Subsequently, a memetic algorithm is used to obtain the best combination of selective groups. Based on the best combination obtained the assembly is done in three stages to completely use all the components. The variation in clearance is minimized and the surplus parts are reduced to a great extent.