任意励振を受ける一般形状を有する任意断面空間曲りばりの非定常応力の解析法と異形断面ばねの開発への応用

抄録

This paper discusses transient stresses in a general shaped three dimensional curved rod with an arbitrary cross section subjected to general transient excitation. The paper gives and analytical method for finding normal and shear stresses in the rod by use of the transfer matrix, the Laplace transform, the Fourier expansion and the Fourier expansion collocation methods based on the there dimensional curved beam theory. As an application, this paper treats the coil spring of an arbitrary cross section, and proposes a rational coil spring having an oval cross section. It is clarified that the oval cross section coil with an appropriate aspect ration has various advantages as compared with the circular cross section spring.