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Design Technique of SAO for the Avoidance of Catridge Case Stuck

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한국정밀공학회 2013년도 춘계학술대회논문집

서론

1.

(CTA, Cased Telescoped Ammunition) (Rotating Chamber) . 90° . (taper) . . . . .

(SAO, Sequential Approximate Optimization) .

해석모델의 구축

2.

Fig. 1

.

Fig. 1 FEM model and boundary condition 1 387Mpa 2 (Fig. 2 ) . ABAQUS implicit code . 252N .

Fig. 2 Simulation result at stage 2 (Extraction force)

3. 설계변수의 설정과 효과분석

11

3 .

-. ISCD II(Incomplete Small Ⅲ

탄피 고착 회피를 위한 근사 최적화 설계기법

Design Technique of SAO for the Avoidance of Catridge Case Stuck

*

차기 업

1

,

#

안 상태

1

,

김 학 인

1

,

조창 기

1

,

강대 오

2

*K. U. Cha

1

([email protected]),

#

S. T. Ahn

1

, H. I. Gimm

1

, C. K. Cho

1

, D. O. Kang

2

1국방과학연구소, 2최적설계연구소

Key words : SAO, DOE, CTA, Rotating Chamber

(2)

한국정밀공학회 2012년도 춘계학술대회논문집 Composite Design II)

Plackett-Burman design . 11 Plackett-Burman design 12 1 13 . Fig. 3 .

Fig. 3 Sensitivity chart on extraction force

메타 모델의 구성과 최적설계

3.

탄피 추출력을 최소화하는 최적 설계문제의 정 식화는 다음과 같다 여기서 제한조건인. 252N은 기본설계 형상의 치수에서 산출된 탄피 추출력을 나타내는 수치이다.

Minimize Extractioin Force(xi) Subject to



      

 

 

 3 . (polynomial) (interpolation) Kring RBF(Radial Basis Function) . RBF . Fig. 4 ( ) . 8 . Fig. 5 . Fig. 6 . 252N 220N 12.7% .

Fig. 4 Convergence history of SAO

Fig. 5 Extration force betw. base design and optimal design

Fig. 6 Comparison betw. base design and optimal design

결론

4.

, 12.7% .

참고문헌

1. T. W. Simpson, J. D. Poplinski, P. N. Koch and J. K. Allen, "Metamodels for Computer-based Engineering Design : Survey and recom-mendations", Engineering with Computers, Vol.17, No.2, pp.129-150, 2001

2. D. C. Montgomery, "Design and Analysis of Experiments", John Wiley & Sons, 1997

3. M-S, KIM, "User's Guide for EasyDesign", Institute of Design Optimization, Inc., 2011.

수치

Fig. 1 FEM model and boundary condition 1 387Mpa 2 (Fig. 2 ) . ABAQUS implicit code . 252N .
Fig. 4 Convergence history of SAO

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