Stability behaviour of cooling towers subjected to wind loading
Abstract eng: An understanding of the buckling behaviour of cooling towers in response to changes in shell geometry is of paramount importance. In this paper, a linear eigenvalue buckling analysis is presented for various cooling tower shell geometries. The shell is subjected to increasing wind speed, and the critical wind speed (at which the shell first buckles) and corresponding buckling mode are observed, as the geometric parameters of the shell are varied through the practical range for industrial cooling towers. It is observed the variation of critical wind speed with cooling-tower height is similar to the Euler buckling curve for axially-loaded struts. There appears to be a certain optimum throat-height to total-height ratio (about 0.75) at which the critical wind speed is a maximum. The critical wind speed is observed to vary linearly with the cooling tower thickness, and non-linearly with shell-diameter parameters. The results may be used as a basis for the preliminary design of cooling towers against wind-induced instability.
Contributors:
Publisher:
Taylor and Francis Group, London, UK
Conference Title:
Conference Title:
Sixth International Conference on Structural Engineering, Mechanics and Computation
Conference Venue:
Cape Town, South Africa
Conference Dates:
2016-09-05 / 2016-09-07
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-09-20, last modified 2016-09-20
guest ::
