Structural Design Optimization of the Rotary Table of a Floor Type Boring Machine for Minimum Weight and Compliance by Using GA

Hyun Bok Lee; Ji Han Oh; Chang Hwan Oh; Young Hyu Choi

doi:10.4028/www.scientific.net/AMM.271-272.1421

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 271-272Structural Design Optimization of the Rotary Table...

Structural Design Optimization of the Rotary Table of a Floor Type Boring Machine for Minimum Weight and Compliance by Using GA

Abstract:

Recently needs of extra-large floor type boring machines have been increased according to super-sizing ships and aircrafts including wind turbines. The rotary table of a supersize floor type boring machine to be developed in this study can support ultra heavyweight workpieces more than 200 tons and be rotated with a speed of 300 deg/min. Therefore, it is designed as a high rigidity structure and requires high rigidity bearings. Thus, hydrostatic bearings are used in this rotary table. For optimizing the rotary table of a floor type boring machine as a lightweight and high rigidity structure, an optimized design is performed using an FEM structural analysis and a genetic algorithm (GA). As a result, it represents a decrease in weight 22.2% and an increases in rigidity 8.56% compared to that of the conventional method based on empirical design.

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Periodical:

Applied Mechanics and Materials (Volumes 271-272)

Pages:

1421-1426

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.271-272.1421

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Online since:

December 2012

Authors:

Hyun Bok Lee, Ji Han Oh, Chang Hwan Oh, Young Hyu Choi

Keywords:

Boring Machine, Finite Element Method (FEM), Genetic Algorithm (GA), Optimization, Rotary Table

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