Electric Power Transmission Tower Under Dynamic Stochastic Wind Loading

Wang, Dahai; Spanos, Petros; Li, Jie

doi:10.3850/978-981-08-7619-7_p060

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ref. [6] pointed out that different stress fields and geometric configurations correspond to different eigenvalues and buckling modes, which means that the geometric nonlinearity must be considered. But, the method for dynamic stability analysis including geometrical nonlinear are not proposed in its program.…”

Section: Overview Of Dynamic Stability Studymentioning

confidence: 99%

“…Parametric resonance of cable stayed bridge, dynamic stability of single-layer reticulated shells and spherical shells and other skeletal structures under simple loads have been widely studied through theoretical analysis or finite element method [3][4][5]. Elastic dynamic stability of large span transmission tower and long span continuous rigid frame bridge with high-piers under earthquake, dynamic stability of concrete filled steel tubular arch bridge under earthquake, are mainly studied by simulation with the finite element method, based on ANSYS platform [6][7][8]. Current analysis method for dynamic stability based on ANSYS does not take into account of dual nonlinear effects.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An ANSYS-Based Approach for Nonlinear Dynamic Stability Analysis

Zeng

2012

AMM

View full text Add to dashboard Cite

Study on dynamic stability of structure is a hot subject in the fields of engineering mechanics, but its basic theory and analytical method still need to be further improved. This paper improved the current method for dynamic stability analysis called “dynamic eigenvalue method”, and the method for nonlinear dynamic stability analysis based on ANSYS platform is proposed. A long column under harmonic loads is taken as the research objective, dynamic eigenvalues affected by the load frequency, load amplitude and damping ratio are studied. Results show that, the increasing of load frequency or dynamic load amplitude will lead to the increase of maximum dynamic eigenvalue and decrease of minimum dynamic eigenvalue, which is not beneficial to dynamic stability of structure. The increasing of damping ratio will lead to the decrease of maximum dynamic eigenvalue and increase of minimum dynamic eigenvalue, this make the dynamic eigenvalue more stable. Therefore, the high damping is beneficial to dynamic stability of structure.

show abstract

Section: Overview Of Dynamic Stability Studymentioning

confidence: 99%