PULLUK UÇ DEMİRİ MALZEME SEÇİMİ: SHANNON ENTROPİ TEMELLİ BULANIK TOPSIS UYGULAMASI

Yıl 2024, Cilt: 65 Sayı: 714, 177 - 197, 29.04.2024

Ahmet Bilal Şengül

https://doi.org/10.46399/muhendismakina.1346068

Öz

Mühendislik tasarım sürecinde malzeme seçimi, çok sayıda malzeme olması ve birbirine zıt bir çok özelliğin bir arada olmasının gerekliliğinden zorlayıcı bir süreçtir. Pulluk, toprak işlemenin en önemli ve temel aracıdır. Toprağı işleyen pullukta büyük aşınmalar çatlaklar ve hatta ani kırılmalar oluşabilmektedir. Bu nedenle pulluk uç demiri üretimi için seçilen malzeme son derecede önemlidir. Bu çalışma da, öncelikle pulluk uç demiri seçiminde önemli olan kriterler belirlenmiş, kriterler Interval Shannon Entropi yöntemi ile ağırlıklandırılmıştır. Bulanık Çok Kriterli Karar Analizi (FTOPSIS) tekniği kullanılarak malzeme tercih sıralaması yapılmıştır. araştırma sonuçlarına göre, uç demiri malzeme seçim kriterleri sıralaması, sırasıyla; sertlik, aşınma dayanımı, tokluk, çeki gerilmesi, termal iletkenlik ve maliyet olarak tespit edilmiştir. FTOPSIS yöntemi kullanılarak yapılan seçim neticesinde; aday malzemelerden ilk sırada 33MnCrB5(1.7185)’nın tercih edilmesi gerektiği, ve daha sonrasında tercih sırasının, sırasıyla 51CrV4(1.8159), 60SiMn5(SAE9262), 41CrMo4 (1.7225QT-4140) olması gerektiği tespit edilmiştir. α = 0.1,0.5 ve 0.9 seviyelerinde duyarlılık analizi yapılmıştır.

Anahtar Kelimeler

Bulanık TOPSIS, Shannon’s entropy, ploughshares material, malzeme seçimi, pulluk uç demiri

PLOUGHSHARES MATERIAL SELECTION: SHANNON’S ENTROPY BASED FUZZY TOPSIS APPLICATION

Öz

Material selection in the engineering design process is a challenging process because there are many materials and many contradictory features that must be together. The plough is the most important and basic tool of tillage. Large abrasions, cracks and even sudden breaks can occur in the plough that cultivates the soil. For this reason, the material chosen for the production of the ploughshares is extremely important. In this study, first of all, the criteria that are important in the selection of ploughshares iron were determined, and the criteria were weighted with the Interval Shannon Entropy method. Material preference ranking was made using "the Fuzzy Technique for Order Preference by Similarity to Ideal Solution" (FTOPSIS) technique. According to the result, the order of the ploughshare’s material selection criteria is, respectively; hardness, wear percentage, toughness, tensile stress, thermal conductivity and cost. As a result of the selection made using the FTOPSIS method; It has been determined that 33MnCrB5(1.7185) should be preferred in the first place among the candidate materials, and then the order of preference should be 51CrV4(1.8159), 60SiMn5(SAE9262), 41CrMo4 (1.7225QT-4140), respectively. Sensitivity analysis was performed at α =0.1,0.5 and 0.9 levels. Three α -cutting levels were identical to the sequence of alternatives.

Anahtar Kelimeler

Fuzzy TOPSIS, Interval Shannon, ploughshares material, material selection, Ploughshares

Kaynakça

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