A PRODUCT DESIGN BY FUZZY AXIOMATIC DESIGN AND GOAL PROGRAMMING APPROACHES

Öz

In this study, a product design problem of a company operating in the beverage sector was handled and solved for the first time in the literature by Fuzzy Axiomatic Design (BAT) and Goal Programming approaches. It was aimed at the product to be designed does not cause a change in the current line specifications, keep the production speed to a certain level and also address customer satisfaction at the same time. Customer satisfaction goal was expressed by fuzzy data in order to better express the natural decision-making processes of human. In the study, fuzzy data belonging to customer satisfaction were defuzzified by BAT technique and the obtained values were entered as a parameter to a mixed integer nonlinear goal programming model which considers three goals. The values of certain parameters of the final product were obtained from the solution of the model. The brimful capacity of the designed bottle was calculated according to these values. Depending on the brimful capacity, it can be understood whether the new design meets the specifications of the production line, the average value of the production speed and the satisfaction of the customer. Through the proposed solution approach, the problem was dealt with analytically. The trial and error method used by the company was abandoned to save both the labor force and the mold and preform costs.

Anahtar Kelimeler

• Product Design Problem,Goal Programming,Fuzzy Axiomatic Design

BULANIK AKSİYOMATİK TASARIM VE HEDEF PROGRAMLAMA YAKLAŞIMLARIYLA BİR ÜRÜN TASARIMI

Öz

Bu çalışmada, içecek sektöründe faaliyet gösteren bir firmanın ürün tasarım problemi ele alınarak, literatürde ilk kez Bulanık Aksiyomatik Tasarım (BAT) ve Hedef Programlama yaklaşımlarının birlikte kullanılmasıyla çözülmüştür. Problemde tasarlanacak olan ürünün mevcut hat spesifikasyonlarında değişikliğe neden olmaması, üretim hızını belirli bir seviyede tutması ve aynı zamanda müşteri beğenisine de hitap etmesi hedeflenmektedir. Bu hedeflerden müşteri beğenisi, insanın doğal karar verme süreçlerini daha iyi ifade edebilmesi bakımından bulanık verilerle ifade edilmiştir. Çalışmada müşteri beğenisine ait bulanık veriler BAT tekniği ile durulaştırılmıştır ve elde edilen değerler, söz konusu üç hedefi de dikkate alan bir 0-1 karma tam sayılı doğrusal olmayan hedef programlama modeline parametre olarak girilmiştir. Modelin çözümünde nihai ürünün belirli parametrelerinin değerleri elde edilmiştir. Bu değerlere göre tasarımı yapılan şişenin silme hacmi hesaplanmaktadır. Silme hacme göre de, yeni tasarımın üretim hattı spesifikasyonlarını sağlayıp sağlamadığı, üretim hızının ortalama değeri ve müşteri beğenisine hitap edip etmediği anlaşılabilmektedir. Önerilen çözüm yaklaşımı sayesinde, problem analitik olarak ele alınmış, firmanın ürün tasarımında başvurduğu deneme yanılma yöntemi terk edildiği için de hem zamandan, hem iş gücünden, hem de kalıp ve preform maliyetlerinden tasarruf sağlanmıştır.

Anahtar Kelimeler

• Bulanık Aksiyomatik Tasarım,Ürün Tasarımı Problemi,Hedef Programlama

Kaynakça

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