The Automated Fairing of Ship Hull Lines Using Formal Optimisation Methods

Ebru NARLI; Kadir SARIÖZ

Makale detayları

The Automated Fairing of Ship Hull Lines Using Formal Optimisation Methods

Yazarlar:

Ebru NARLI | Kadir SARIÖZ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2004 Vol.28 Issue 3, pp.157-166

Belge Tipi:

Makale

Yayın Tarihi:

2/2004

Belge Dili:

Türkçe

Document ID (Org No.):

2000745091

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

Özet:

 

The problem of creating fair ship design curves is of major  importance in Computer Aided Ship Design environment.  The fairness of  these curves is generally considered a subjective notion depending on  the judgement of the designer (eg., visually pleasing, minimum  variation of curvature, devoid of unnecessary bumps or wiggles,  satisfying certain continuity requirements).  Thus an automated  fairing process based on objective criteria is clearly desirable.   This paper presents an automated fairing algorithm for ship curves to  satisfy objective geometric constraints.  This procedure is based on  the use of optimisation tools and cubic B-spline functions.  The aim  is to produce curves with a more gradual variation of curvature  without deteriorating initial shapes.  The optimisation based fairing  procedure is applied to a variety of plane ship sections to  demonstrate the capability and flexibility of the methodology.  The  resulting curves, with their corresponding curvature plots indicate  that, provided that the designer can specify his objectives and  constraints clearly, the procedure will generate fair ship definition  curves within the constrained design space.

 

The problem of creating fair ship design curves is of major  importance in Computer Aided Ship Design environment.  The fairness of  these curves is generally considered a subjective notion depending on  the judgement of the designer (eg., visually pleasing, minimum  variation of curvature, devoid of unnecessary bumps or wiggles,  satisfying certain continuity requirements).  Thus an automated  fairing process based on objective criteria is clearly desirable.   This paper presents an automated fairing algorithm for ship curves to  satisfy objective geometric constraints.  This procedure is based on  the use of optimisation tools and cubic B-spline functions.  The aim  is to produce curves with a more gradual variation of curvature  without deteriorating initial shapes.  The optimisation based fairing  procedure is applied to a variety of plane ship sections to  demonstrate the capability and flexibility of the methodology.  The  resulting curves, with their corresponding curvature plots indicate  that, provided that the designer can specify his objectives and  constraints clearly, the procedure will generate fair ship definition  curves within the constrained design space.

Makale detayları

The Automated Fairing of Ship Hull Lines Using Formal Optimisation Methods

Yazarlar: Ebru NARLI | Kadir SARIÖZ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Engineering and Environmental Sciences 2004 Vol.28 Issue 3, pp.157-166

Belge Tipi: Makale

Yayın Tarihi: 2/2004

Belge Dili: Türkçe

Document ID (Org No.): 2000745091

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

Sayı

Yazarlar:

Ebru NARLI | Kadir SARIÖZ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2004 Vol.28 Issue 3, pp.157-166

Belge Tipi:

Makale

Yayın Tarihi:

2/2004

Belge Dili:

Türkçe

Document ID (Org No.):

2000745091

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160