Natural Frequencies of Composite Cylindrical Helical Springs Under Compression

Kacar I., YILDIRIM V.

10th Biennial International Conference on Vibration Problems (ICOVP), Prague, Czech Republic, 5 - 08 September 2011, vol.139, pp.119-124, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 139
  • Doi Number: 10.1007/978-94-007-2069-5_16
  • City: Prague
  • Country: Czech Republic
  • Page Numbers: pp.119-124
  • Keywords: Vibration, Composite springs, Axial load, Stiffness matrix, VIBRATION, MATRIX, RODS
  • Çukurova University Affiliated: Yes

Abstract

The governing equations of cylindrical isotropic helical springs loaded axially are extended to the study of free vibration of such helices made of composite materials. Stiffness method is used based on the first order shear deformation theory. A helical element has six degrees of freedom at each node, three translations and three rotations. The element stiffness matrix is obtained exactly based on the both complementary functions and the transfer matrix methods.