caa a22 4500 445877979 CHVBK 20180317145533.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11081-010-9132-0 doi (NATIONALLICENCE)springer-10.1007/s11081-010-9132-0 Optimal topology design of industrial structures using an evolutionary algorithm [Elektronische Daten] [Raj Das, Rhys Jones, Yi-Min Xie] The paper demonstrates the application of a modified Evolutionary Structural Optimisation (ESO) algorithm for optimal design of topologies for complex structures. A new approach for adaptively controlling the material elimination and a ‘gauss point average stress' is used as the ESO criterion in order to reduce the generation of checkerboard patterns in the resultant optimal topologies. Also, a convergence criterion is used to examine the uniformity of strength throughout a structure. The ESO algorithm is validated by comparing the ESO based solution with the result obtained using another numerical optimisation method (SIMP). The capabilities of ESO for producing an optimal design against a specified strength constraint are illustrated using two industrial design problems, viz: a bulkhead used in an aircraft structure and a sideframe used in a railway freight wagon. It has been shown that topology optimisation using ESO can result in a considerable reduction in the weight of a structure and an optimum material utilisation by generating a uniformly stressed structure. The ESO algorithm was also applied to the shape optimisation of a local geometry of the sideframe to (locally) reduce stress levels. The paper evaluates and establishes the ESO method as a practical tool for optimum topology and subsequent shape design problems for complex industrial structures. Springer Science+Business Media, LLC, 2011 Structural optimisation nationallicence Topology optimisation nationallicence Evolutionary algorithm nationallicence Finite element analysis nationallicence Structural analysis nationallicence Das Raj Centre for Advanced Composite Materials, Department of Mechanical Engineering, University of Auckland, Symonds Street, 1010, Auckland, New Zealand aut Jones Rhys Department of Mechanical and Aerospace Engineering, Monash University, Wellington Road, 3168, Victoria, Australia aut Xie Yi-Min School of Civil and Chemical Engineering, RMIT University, 3001, Victoria, Australia aut Optimization and Engineering Springer US; http://www.springer-ny.com 12/4(2011-12-01), 681-717 1389-4420 12:4<681 2011 12 11081 https://doi.org/10.1007/s11081-010-9132-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11081-010-9132-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Das Raj Centre for Advanced Composite Materials, Department of Mechanical Engineering, University of Auckland, Symonds Street, 1010, Auckland, New Zealand aut NATIONALLICENCE 700 1- Jones Rhys Department of Mechanical and Aerospace Engineering, Monash University, Wellington Road, 3168, Victoria, Australia aut NATIONALLICENCE 700 1- Xie Yi-Min School of Civil and Chemical Engineering, RMIT University, 3001, Victoria, Australia aut NATIONALLICENCE 773 0- Optimization and Engineering Springer US; http://www.springer-ny.com 12/4(2011-12-01), 681-717 1389-4420 12:4<681 2011 12 11081 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer