Free vibration/buckling analyses of noncylindrical initially compressed helical composite springs

Kacar I., YILDIRIM V.

MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES, cilt.44, sa.4, ss.340-353, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 4
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1080/15397734.2015.1066687
  • Dergi Adı: MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.340-353
  • Anahtar Kelimeler: Buckling, composites, complementary functions, free vibration, spring, stiffness matrix, transfer matrix, ELEMENT STIFFNESS MATRIX, VARIABLE CROSS-SECTION, NATURAL FREQUENCIES, COIL SPRINGS, CONICAL SPRINGS, ARBITRARY SHAPE, BEAMS, SHEAR, BARS, VIBRATIONS
  • Çukurova Üniversitesi Adresli: Evet

Özet

This article presents the use of the stiffness matrix method based on the first-order shear deformation theory to predict the fundamental natural frequencies and buckling loads of noncylindrical unidirectional composite helical springs subjected to initial static axial force and moment. This theoretical study about such springs with circular/rectangular cross-sections and large pitch angles is performed for the first time in the literature. The validity of the present results is verified by the benchmark studies related with initially compressed isotropic cylindrical springs.