On the design of rotating elastic shrink fits with annular inclusion and functionally graded hub

APATAY T., Arslan E., Mack W.

MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES, cilt.47, sa.3, ss.339-355, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 3
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1080/15397734.2018.1549497
  • Dergi Adı: MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.339-355
  • Anahtar Kelimeler: Interference fit, hollow cylinders, functionally graded material, elastic limits, rotation, STRESS-DISTRIBUTION, ELASTOPLASTIC ANALYSIS, TEMPERATURE CYCLE, INTERFERENCE-FIT, PLASTIC HUB, SHAFT, JOINTS, DISK, VESSELS, SECTOR
  • Gazi Üniversitesi Adresli: Evet

Özet

Shrink fits are found frequently in mechanical engineering as an efficient means of connecting a cylindrical inclusion with an annular hub. For reliable operation, the interface pressure between the components should be as large as possible. Although in some cases this may be achieved by a partially plastic design, there are many applications where the device should behave elastically. In the present study, the use of a functionally graded material for the hub is proposed, and particularly an annular inclusion is considered. It is shown that - depending on the radii ratios and the degree of grading - qualitatively different types of mechanical behavior are possible, and that in general by appropriate grading a much better performance at rotation can be achieved, accompanied by a substantial saving of weight. These issues are discussed in detail, and the analytically obtained results provide a comprehensive means for the practicing engineer to decide whether this type of shrink fit might be advantageous for some applications.