Abstract
Transient simulation of impulse wind effect on a tall shipyard frame structure
Highlights
This paper presents the importance of a dynamically checked design of the shipbuilding portal rotating crane geometry regarding wind load
One can conclude that the wind load is variable with the same eigenfrequency of the structure which leads to resonance
In the calculations of the impact effect of wind on the chosen crane, two quantities of the reference wind speed are taken into account as follows: 35 m/s and 45 m/s, because such and even higher impact speeds were statistically recorded on the Balkan Peninsula
Summary
This paper presents the importance of a dynamically checked design of the shipbuilding portal rotating crane geometry regarding wind load. The dynamic character of wind load is mathematically introduced by a harmonic function of excitation and logarithmic wind speed profile. Structural analysis on the nonlinear model of the crane is carried out using the finite element method. The dissipation function is described by using an adequate model of structural damping. Combining the tracking and transformation methods, the eigenvalues of the FEM model of the observed structure were extracted. This research provides a faithful mechanical model of the crane for transient analysis in which structural elasticity is verified on the real structure. Based on the conducted dynamic simulations of wind action a new design criterion is suggested – the conditional quotient of structural geometry
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
