Evaluation of wooden chair designs through finite element analysis and interval-valued spherical fuzzy analytic hierarchy process weighted aggregated sum product assessment (IAHP-WASPAS)

SİNGER H., Çiftçi S., İlçe A. C.

Wood Material Science and Engineering, 2025 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1080/17480272.2025.2536190
  • Dergi Adı: Wood Material Science and Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Agricultural & Environmental Science Database, Applied Science & Technology Source, CAB Abstracts, Communication Abstracts, Compendex, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: design selection, furniture industry, fuzzy multicriteria decision-making, Product design
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Product design is a complex process that involves evaluating multiple design alternatives based on various criteria. The selection of an optimal design requires a structured decision-making approach capable of handling uncertainty and computational analysis. This study proposed a novel decision-making methodology that integrates finite element analysis (FEA) with the interval-valued spherical fuzzy analytic hierarchy process (IVSF-AHP) and the interval-valued spherical fuzzy weighted aggregated sum product assessment (IVSF-WASPAS) to enhance the accuracy and reliability of design selection. A case study was made at a furniture manufacturing company in Turkey, focusing on the development and optimization of a dining chair. FEA was employed to assess the structural integrity and manufacturability of each design under different loading conditions. IVSF-AHP was used to determine the importance of evaluation criteria, while IVSF-WASPAS was applied to rank alternative designs. Additionally, sensitivity and comparative analyses were conducted to support the model’s results. The proposed methodology presents a systematic and practical framework for manufacturers, product designers, and engineers to improve the product design process.