Vibration analysis of frame structures

Part 1 book "Structural dynamics" includes content: Undamped single degree of freedom system; damped single degree of freedom system; response of one degree of freedom system to harmonic loading; response to general dynamic loading; response spectra; nonlinear structural response; free vibration of a shear building; forced motion of shear buildings; reduction of dynamic matrices; dynamic analysis of beams; dynamic analysis of plane frames.

325p muasambanhan06 01-02-2024 3 1   Download

Part 2 book "Structural dynamics" includes content: Framed structures modeled as discrete multi degree of freedom systems; structures modeled with distributed properties; special topics - fourier analysis, evaluation of absolute damping, generalized coordinates; random vibration; earthquake engineering.

304p muasambanhan06 01-02-2024 1 1   Download

In this paper, dynamic stiffness model of a cracked frame structure that represents a planar tower crane is established in an explicit form based on general solution of cracked 2Dbeam element vibration. The crack is modeled by a pair of equivalent springs of stiffness calculated from the crack depth. An explicit form of frequency equation is first established and then solved for numerical sensitivity analysis of natural frequencies of the structure to cracks. An experimental study is accomplished to validate the theoretical development.

13p cothumenhmong9 04-01-2021 10 0   Download

The classical 3D beam element has been modified and developed as a new finite element for vibration analysis of frame structures with flexible connections and cracked mem hers. The mass and stiffness matrices of the modified elements are established basing on a new form of shape functions, which are obtained in investigating a beam with flexible supports and crack modeled through equivalent springs.

18p chikychiky 01-11-2018 39 1   Download