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Author Zuberi, Rehan H.
Source CiteSeerX
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Objective Function ♦ Maximum Allowable Bending Stress ♦ Optimal Design ♦ Design Space ♦ Crane Bridge ♦ Design Parameter ♦ Welded Box Section Bridge ♦ Multiple Span ♦ Design Norm ♦ Heavy Duty Crane Box Girder ♦ Electric Overhead Travelling ♦ Available Fea Software ♦ Structural Material ♦ Essential Industrial Equipment ♦ Allowable Shear Stress ♦ Fe Simulation ♦ Generalized Reduced Gradient ♦ Order Design Optimization ♦ Compression Flange ♦ Local Buckling ♦ Recent Upward Trend ♦ Optimization Code ♦ Box Girder ♦ Crane Manufacturer ♦ Convergent Solution ♦ Design Optimization ♦ Eot Crane Thin ♦ Vigorous Random ♦ Various Parameter ♦ Innovative Procedure ♦ Eot Crane Bridge ♦ Modern Design Optimization Tool ♦ Grg2 Optimization ♦ Demanding Dimension ♦ Cen Standard ♦ Recent Year Little Attention ♦ Box Section
Description Electric Overhead Travelling (EOT) Crane is one of the essential industrial equipment for material handling job. In recent years little attention has been paid to the optimal design of Heavy Electric Overhead Travelling Crane Bridges. The motive might be, but not limited to the availability of prevailing FEM, DIN, ISO, CMAA, BS, Chinese and now CEN standards for the design of cranes. Most of the crane manufacturers have standardized the single dimensioned box section for multiple spans and duties of Crane Bridges for manufacturing simplicity. Owing to the recent upward trend in the price of structural materials not to mention the demanding dimensions of heavy duty crane box girders, utilization of modern design optimization tools is inevitable. This paper demonstrates design optimization of EOT crane thin walled welded box girder subjected to rolling loads. A simple and innovative procedure has been introduced to use Generalized Reduced Gradient (GRG2) nonlinear optimization code for optimization of various parameters of the welded box section bridge and then comparing the results with the FE simulation. Local buckling of web and compression flange has also been taken in account while performing GRG2 optimization. Later vigorous random and 1st order Design Optimization is performed to establish design space and convergent solutions utilizing commercially available FEA software. Maximum allowable bending stress, allowable shear stress and deflection are constrained to recommended limits of design norms, keeping the volume of the bridge as objective function. The size and thicknesses of plates, stiffeners and reinforcement are included as design parameters
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article
Publisher Institution EngOpt 2008 - International Conference on Engineering Optimization Rio de