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Title of Journal: Struct Multidisc Optim

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Abbravation: Structural and Multidisciplinary Optimization

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Springer-Verlag

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DOI

10.1016/0022-0248(93)90004-g

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1615-1488

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Topology optimization of shell structures using ad

Authors: KangSoo Park SungKie Youn
Publish Date: 2007/12/15
Volume: 36, Issue: 1, Pages: 43-58
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Abstract

A new topology optimization using adaptive innerfront level set method is presented In the conventional level setbased topology optimization the optimum topology strongly depends on the initial level set due to the incapability of innerfront creation during the optimization process In the present work in this regard an algorithm for innerfront creation is proposed in which the sizes the positions and the number of new innerfronts during the optimization process can be globally and consistently identified In the algorithm the criterion of innerfront creation for compliance minimization problems of linear elastic structures is chosen as the strain energy density along with volumetric constraint To facilitate the innerfront creation process the innerfront creation map is constructed and used to define new level set function In the implementation of innerfront creation algorithm to suppress the numerical oscillation of solutions due to the sharp edges in the level set function domain regularization is carried out by solving the edge smoothing partial differential equation smoothing PDE To update the level set function during the optimization process the leastsquares finite element method LSFEM is adopted Through the LSFEM a symmetric positive definite system matrix is constructed and nondiffused and nonoscillatory solution for the hyperbolic PDE such as level set equation can be obtained As applications threedimensional topology optimization of shell structures is treated From the numerical examples it is shown that the present method brings in much needed flexibility in topologies during the level setbased topology optimization process

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  1. Aims, scope, methods, history and unified terminology of computer-aided topology optimization in structural mechanics
  2. Multi-dimensional optimization of functionally graded material composition using polynomial expansion of the volume fraction
  3. On symmetry and non-uniqueness in exact topology optimization
  4. Integrated layout and topology optimization design of multi-frame and multi-component fuselage structure systems
  5. Single-level composite wing optimization based on flexural lamination parameters
  6. Topology optimization of composite structures with data-driven resin filling time manufacturing constraint
  7. A survey on handling computationally expensive multiobjective optimization problems using surrogates: non-nature inspired methods
  8. Minimum weight design of solid annular plates under an assigned limit ring load
  9. A sensitivity-based commonality strategy for family products of mild variation, with application to automotive body structures
  10. A new reliability analysis method based on the conjugate gradient direction
  11. Aircraft wing box optimization considering uncertainty in surrogate models
  12. Multidisciplinary dynamic optimization of horizontal axis wind turbine design
  13. Geometrical aspects of optimum truss like structures for three-force problem
  14. Advances in optimization of highrise building structures
  15. Topology optimization of fail-safe structures using a simplified local damage model
  16. Topology optimization of frame structures with flexible joints
  17. A concurrent subspace collaborative optimization architecture to structural synthetical optimization design
  18. Topology optimization of internal partitions in a flow-reversing chamber muffler for noise reduction
  19. Material interpolation schemes for unified topology and multi-material optimization
  20. Variational proof of optimality criteria for Michell structures with pre-existing members
  21. Drop test simulation and surrogate-based optimization of a dishwasher mechanical structure and its packaging module
  22. Resolving issues with member buckling in truss topology optimization using a mixed variable approach
  23. Adaptive infill sampling criterion for multi-fidelity optimization based on Gappy-POD
  24. A comparative study of uncertainty propagation methods for black-box-type problems
  25. Multiobjective optimization for crash safety design of vehicles using stepwise regression model
  26. A double-distribution statistical algorithm for composite laminate optimization
  27. Robust design optimization by polynomial dimensional decomposition
  28. A crossing sensitivity filter for structural topology optimization with chamfering, rounding, and checkerboard-free patterns
  29. Hybrid evolutionary algorithm and application to structural optimization
  30. Harmony search algorithm for minimum cost design of steel frames with semi-rigid connections and column bases
  31. Optimization of a contact surface
  32. A multi-objective, multidisciplinary design optimization methodology for the conceptual design of a spacecraft bi-propellant propulsion system
  33. Optimum design of a controlled cable stayed bridge subject to earthquakes
  34. Design optimization of a runflat structure based on multi-objective genetic algorithm
  35. On minimum compliance problems of thin elastic plates of varying thickness
  36. On the analytical derivation of the Pareto-optimal set with applications to structural design
  37. Hierarchical model calibration for designing piezoelectric energy harvester in the presence of variability in material properties and geometry
  38. Topology optimization of free vibrating continuum structures based on the element free Galerkin method
  39. Fracture resistance via topology optimization
  40. Analysis and optimal design of plates and shells under dynamic loads – II: optimization
  41. Approximation of the critical buckling factor for composite panels
  42. Adhesive surface design using topology optimization
  43. Optimal design of hydraulic support
  44. A modified ant colony algorithm for the stacking sequence optimisation of a rectangular laminate
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  46. Shape sensitivity analysis using a fixed basis function finite element approach
  47. Multiobjective evolutionary optimization of periodic layered materials for desired wave dispersion characteristics
  48. Globally optimal benchmark solutions to some small-scale discretized continuum topology optimization problems
  49. Multi-constrained topology optimization via the topological sensitivity
  50. A multi-objective differential evolution approach based on ε-elimination uniform-diversity for mechanism design
  51. Metamodeling by symbolic regression and Pareto simulated annealing
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