| Title |
Analysis of Dynamic Buckling Characteristics of Shallow Sinusoidal Arches under STEP Excitation by Running Response Spectra |
| Authors |
KIm Seung-Deog ; Yun Tae-Young ; Shon Su-Deok |
| Keywords |
Dynamic instability ; Dynamic buckling ; Running response spectrum |
| Abstract |
We investigate the fundamental mechanisms of the dynamic instability when the sinusoidal shaped arch structures subjected to sinusoidal distributed excitation with pin-ends. ??In nonlinear dynamics, examining the characteristics of attractor on the phase plane and investigating the dynamic buckling process are very important thing for understanding why unstable phenomena are sensitively originated by various initial conditions. ??By using Newmark - (beta)method, we can get the nonlinear displacement response, and using this analyze characteristics of the dynamic instability through the running response spectrum by FFT(Fast Fourier Transform). |