GENESIS

GENESIS is a fully integrated finite element analysis and design optimization software package, written by leading experts in structural optimization.
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Software for Structural Analysis and Optimization

 

GENESIS is a fully integrated finite element analysis and design optimization software package, written by leading experts in structural optimization.

Analysis is based on the finite element method for static, normal modes, direct and modal frequency analysis, random response analysis, heat transfer, and system buckling calculations.

Design is based on the advanced approximation concepts approach to find an optimum design efficiently and reliably. An approximate problem, generated using analysis and sensitivity information, is used for the actual optimization, which is performed by the well-established DOT or BIGDOT optimizers. When the optimum of the approximate problem has been found, a new finite element analysis is performed and the process is repeated until the solution has converged to the optimum.

Genesis is easy to learn, so no special knowledge of optimization technology is required. Many design options are available for users including: shape, sizing, topography, topometry and topology. Shape/sizing and topography optimization typically require less than ten detailed finite element analyses, even for large and complex design tasks. The topology and topometry optimization typically takes twenty or less detailed finite element analyses.

 

ESLDYNA: GENESIS - LS-DYNA COUPLING

ESLDYNA is based on the  Equivalent Static Loads (ESL) method to perform optimization based on a nonlinear finiteelement analysis with GENESIS as the structural optimization program. ESLDYNA takes advantage of the capability of GENESIS, a linear structural optimization program, to solve large scale optimization problems based on the responses from a nonlinear finiteelement analysis. It also helps to significantlyreduce the design time by identifying high performance designs with five to ten nonlinear analyses.

 

Vanderplaats Research & Development, Inc. (VR&D) provides ESLDYNA which uses LS-DYNA, a product of the Livermore Software Technology Corporation, for the nonlinear analysis. Most of the different types of design optimization techniques in GENESIS are available to the user for designing the nonlinear model. Multiple loading conditions in the nonlinear analysis, using several LS-DYNA input files,can be analyzed simultaneously to achieve optimal solutions. The available plug-in to Design Studio, a design pre- and post-processor, provides an easy to use interface with seamless integration between GENESIS and LS-DYNA.


Highlights

  • ESLDYNA Optimization can handle a very large number of design variables
  • Reduced computational cost
  • Ease of use enhanced by the Design Studio plugin
  • Seamless integration between LS-DYNA and GENESIS
  • Easy implementation of Shape, Sizing, Topology, Topometry, Topography, and Freeform design changes
  • Multiple loading conditions

 

Please download ESLDYNA brochure here.

 

Please watch a video about GENESIS coupling (shape optimization and the ESL method) with LS-DYNA here (YouTube).

 

 

Benefits

  • Reduces Cost and Improves Performance - by generating new designs based on user criteria such as mass minimization, frequency maximization, stress or displacement constraints and many more.
  • Reduces Engineering Time - Genesis has powerful embedded solvers such as our SMS eigensolver which speeds up solving time and is 2 to 5 times faster for small to midsize problems and 5 to 10 time faster for very large problems.
  • Innovative Designs Come To Life - robust designs can be realized as our optimizer, BIGDOT, can handle extremely large numbers of design variables. This allows an engineer to explore the entire design space with either topology, topometry, or topography optimization.
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Highlights

  • Easy to use - thanks to its unique preprocessor, Design Studio for Genesis, GENESIS optimization capabilities can be learned in few days.
  • Ideal for designers - it has many capabilities built-in to generate designs with fabrication considerations such as need for casting, extrusion and packaging.
  • Reliable - backed up by a strict quality assurance process and solid reputation of stability and robustness.
  • Innovative - only program in the market that has topometry optimization.

Analysis Capabilities

  • Static
  • Normal Modes
  • Direct and Modal Frequency Analysis
  • Random Response
  • Heat transfer
  • System Buckling

Optimization Capabilities

  • Sizing Optimization - is an optimization capability which allows the user to find the best dimensions of any designable elements like bars, shells and composites. In total, 17 types of elements are designable with sizing.
  • Shape Optimization - is an optimization capability which allows the user to find the best shape possible. The software finds the best location of the finite element nodes, which define the shape of the structure.
  • Topography Optimization - is an optimization capability which allows the user to find the location and shape of bead patterns to stiffen panel structures.
  • Topometry Optimization - is a unique optimization capability which allows the user to find the optimal distribution of sizing dimensions over the structure. Like topology, this capability can be used to find the optimal places to take out material. Unlike topology, it also can be used to find the best places to add additional material.
  • Topology Optimization - is an optimization capability which allows the user to find the best distribution of material. With topology optimization, an optimal structure is generated by carving out material from a given design space, allowing for a given amount of material.
  • Freeform Optimization - is a new special shape optimization capability which allows the user to find the best location and shape of rib patterns that stiffen solid structures. It can also be used to find the best location of grids in any type of structure.

Application Examples

Finite Element Information

Element Library - Genesis has a very complete finite element library that includes:

  • Bushing
  • Rod
  • Bar
  • Beam
  • Spring
  • Shell
  • Shear
  • Composite
  • Axisymmetric
  • CTETRA, CPENTA, and CHEXA 3-D solid elastic elements
  • RBE1, RBE2, RBE3, RSPLINE rigid/interpolation elements
  • DMIG, GENEL and other general elements/matrices are also available
  • Nonlinear CGAP element
  • CWELD connector element


Materials

  • Isotropic
  • Orthotropic
  • Anisotropic


Loads

  • Point
  • Pressure
  • Gravity
  • Centrifugal
  • Temperature
  • etc.
Testlizenz "Optimization Solutions"

Für eine kostenlose Testversion nutzen Sie bitte das Kontaktformular.

Beratung
contact Heiner Müllerschön
  • Optimierung
  • CAE Integration
Support
contact Katharina Witowski
  • Optimierung