• Title/Summary/Keyword: 타구치 방법

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Initial Robust Design of Deadweight 150,000 ton Bulk Carrier (재화중량 150,000톤 산적화물선의 초기 로버스트 설계)

  • Koh, Chang-Doo;Kim, Soo-Young
    • Journal of Ocean Engineering and Technology
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    • v.13 no.4 s.35
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    • pp.182-189
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    • 1999
  • The robust design technology which can determine design variables getting best performance function with insensitivity to the environment noise, is an important method for improving the performance of products at low cost. Applying the robust design technology in ship design, Koh et al[10] introduced the planing hull design. This paper reports the application this technology to a 150K bulk carrier which has many design variables and shows that the robust design technology is superior to optimization technique in practical use.

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The Optimization of Ball End-Milling Parameters on the Surface Roughness of STD61 Steel using the Taguchi Method (Taguchi 방법을 이용한 STD61의 표면거칠기에 대한 볼 엔드 밀링 파라미터 최적화)

  • Ahmed, Farooq;Byeon, Ji Hyeon;Park, Ki Moon;Ko, Tae Jo
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.16 no.4
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    • pp.153-158
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    • 2017
  • When considering the proper function and life cycle length of a product, its surface finish plays an important role. This experimental study was carried out to understand the effect of input factors on surface roughness and how it can be minimized by controlling the input parameters. This experimental work was performed by machining the surface of STD 61 blocks with a surface inclined at $30^{\circ}$ by ball end-milling and optimizing the input parameters using the Taguchi technique. Signal-to-Noise (S/N) ratio and analysis of variance (ANOVA) were applied to find the significance of the input parameters. The optimum level of input parameters to minimize surface roughness was obtained.