Abstract
The paper deals with the geometry optimization of a slender cantilever beam subjected to a concentrated force acting at the free end. The two-parametric mathematical model of lateral torsional buckling is based on the Bernoulli–Euler beam theory and is given in dimensionless form. The optimization procedure is performed using the optimal control theory and the relation between state and adjoint variables is presented. The boundary value problem derived from the optimization procedure is solved numerically and compared to solutions obtained via an alternative optimization approach called sequential approximate optimization.
Similar content being viewed by others
References
Atanackovic TM (2007) Optimal design of clamped columns for stability under combined axial compression and torsion. ZAMM 87:399–405
Atanackovic TM, Simic SS (1999) On the optimal shape of a Pflurger column. Eur J Mech A/Solids 18:903–913
Atanackovic TM, Jakovljevic BB, Petkovic MR (2010) On the optimal shape of a column with partial elastic foundation. Eur J Mech A/Solids 29:283–289
Braun DJ (2008) On the optimal shape of compressed rotating rod with shear and extensibility. Int J Non-Linear Mech 43:131–139
Choi KK, Kim NH (2005) Structural sensitivity analysis and optimization 1. Linear systems. Springer, New York
Cox SJ (1992) The shape of the ideal column. Math Intell 14:16–24
Drazumeric R, Kosel F (2005) Optimization of geometry for lateral buckling process of a cantilever beam in the elastic region. Thin-Walled Struct 43:515–529
Drazumeric R, Kosel F (2012) Shape optimization of beam due to lateral buckling problem. Int J Non-Linear Mech 47:65–74
Gajewski A, Zyczkowski M (1988) Optimal structural design under stability constraints. Kluwer Academic, Dordrecht
Haftka RT, Gurdal Z (1992) Elements of structural optimization. Kluwer Academic, Dordrecht
Haftka RT, Sobieski JS (2009) Structural optimization: history. In: Faudas CA, Pardalos PM (eds) Encyclopedia of optimization. Springer, New York, pp 3834–3836
Haug EJ, Choi KK (1982) Systematic occurence of repated eigenvalues in structural optimization. J Opt Theory Appl 38:251–274
Keller JB (1960) The shape of the strongest column. Arch Ration Mech Anal 5:275–285
Kruzelecki J, Ortwein R (2011) Optimal design of clamped columns for stability under combined axial compression and torsion. Struct Multidisc Optim 9:181–196
Manickarajah D, Xie YM, Steven GP (2000) Optimization of columns and frames against buckling. Comput Struct 75:45–54
Novakovic BN, Atanackovic TM (2009) Optimal shape of a heavy elastic rod loaded with a tip concentrated force against lateral buckling. Int J Struct Stab Dyn 9:83–90
Novakovic BN, Atanackovic TM (2011) On the optimal shape of a compressed column subjected to restrictions on the cross-sectional area. Struct Multidisc Optim 43:683–691
Olhoff N, Ramussen SH (1977) On single and bimodal optimum buckling loads of clamped columns. Int J Solids Struct 13:605–614
Olhoff N, Seyranian AP (2008) Bifurcation and post-buckling analysis of bimodal optimum columns. Int J Solids Struct 45:3967–3995
Olhoff N, Taylor JE (1983) On structural optimization. J App Mech 50:1139–1151
Plaut RH, Virgin LN (2010) Vibrations and large postbuckling deflections of optimal pinned columns with elastic foundations. Struct Multidisc Optim 40:157–164
Popelar CH (1976) Optimal design of beams against buckling: a potential energy approach. J Struct Mech 9:181–196
Schmit LA (1960) Structural design by systematic synthesis In: Proceedings of second conference on electronic computation ASCE
Seyranian AP (1984) On a problem of Lagrange. Mech Solids 19:100–111
Seyranian AP, Lundt E, Olhoff N (1994) Multiple eigenvalues in structural optimization problems. Struct Optim 8:207–227
Tadjbakhsh I, Keller JB (1962) Strongest columns and isoperimetric inequalities for eigenvalues. J Appl Mech 29:159–164
Timoshenko SP (1961) Theory of elastic stability. McGraw-Hill, New York
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Polajnar, M., Drazumeric, R. & Kosel, F. Geometry optimization of a slender cantilever beam subjected to lateral buckling. Struct Multidisc Optim 47, 809–819 (2013). https://doi.org/10.1007/s00158-012-0858-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00158-012-0858-5