ESDU 96030 describes the nature of the lateral response to vortex shedding of structures of circular or of polygonal cross section with more than eight sides. A method is developed for calculation of this response together with the data required to implement it. It takes account of the response to buffeting by across-wind atmospheric turbulence components@ using the methods of ESDU 89049. Comparisons of predictions with both model and full-scale measurements@ and a discussion of methods of reducing response to vortex shedding are included. ESDU 96031 introduces a program running in Excel that implements the method. The method treats the following conditions: structures that are parallel-sided@ tapered and stepped with smooth or rough surfaces (if ancillary structures are attached such as ladders they must be entirely in the main structure wake for the method to apply)@ cantilevered or between end fixings@ vertical@ horizontal or inclined in flow that is uniform or shear@ smooth or turbulent@ with natural atmospheric turbulence or simulated turbulence as in a wind-tunnel.
ESDU 96030 A-1998 history
1998ESDU 96030 A-1998 Response of structures to vortex shedding. Structures of circular or polygonal cross section.