Time Response and Natural Frequency Analysis for Structures with Interval Parameters

This paper deals with the evaluations of lower and upper bounds dynamic responses natural frequencies for structures uncertain interval parameters. The structural physical parameters, geometric dimensions initial conditions can be considered as modified Chebyshev method (MCIM) is presented to handle uncertainties. In comparison (CIM), MICM provides tighter time without a significant increase in computation time. Monte Carlo also used provide exact bounds. MICM, CIM are applied efficiency accuracy MCIM verified.