Identify Design Alternatives Through Optimization

Optimization enhances the benefit of simulation in virtual product development through automated improvement capabilities. Without optimization, simulation specialists and designers need to interpret analysis results to determine how to change an existing design such that it meets all necessary design requirements, often relying on their intuition, experience, and sometimes chance.

Adding automated physics-based design optimization to the product development process helps to identify design alternatives. Thus minimizing weight, maximizing lifecycle, and other increases of efficiency become more easily attainable.

Two different approaches for optimization are available:

  • Geometric_or_Material_PerametersParametric approach: Change a limited number of design variables (e.g. geometric or material parameters). This easily combines different disciplines and objectives to include nearly every kind of response value in the optimization.
  • Topology_SizingNon-parametric approach: Change a specific design area by topology, sizing, shape, or bead optimization. This is particularly useful for design concepts in early design phases and design improvements where easy (“parametric”) geometric changes do not suffice.

Use Isight and Tosca to explore both optimization approaches:

Isight & SIMULIA Execution Engine (SEE)

Isight is a general purpose process integration and design optimization (PIDO) solution from SIMULIA. With Isight you can create flexible simulation process flows to automate the exploration of design alternatives and identification of optimal performance parameters (parametric approach).

Tosca Structure & Tosca Fluid

  • Tosca is a special purpose optimization tool tuned for structural and fluid flow problems. Its non-parametric approach offers a simple setup directly on simulation FEA models.
  • Tosca Structure provides topology, shape, sizing and bead optimization for mechanical structures based on simulation results.
  • Tosca Fluid provides non-parametric fluid flow optimization for an automated development of innovative flow channels with reduced pressure drop or homogeneous flow.

Optimization Training Offer

SIMULIA offers a variety of optimization courses designed to teach the user how to include automatic optimization and improvement methods in the development process:

  • Design_and_Runtime_GatewaysIntroduction to Isight (2 day class)
    This course covers the Design and Runtime Gateways along with several fundamental components, showing users the way workflows can be built in Isight and how design space can be explored.
  • Introduction to Tosca Structure (2 day class)
    Tosca_StructureA comprehensive introduction to the structural optimization capabilities of Tosca Structure: Solving fundamental topology, shape, sizing and bead optimization problems, and integration of optimization into the development process.
  • Introduction to Tosca Fluid (1 day class)
    Tosca_FluidAn introduction to the fluid optimization capabilities of Tosca Fluid: Solving basic topology optimization tasks for internal flow problems, and result evaluation and transfer.
  • Tosca Structure-durability (1 day class) 
    This course focuses on fatigue criteria in non-parametric shape optimization.
  • Tosca Structure-nonlinear (1 day class) 
    This course illustrates how to perform structural optimization (topology and shape optimization) based on nonlinear simulation results.

Click on the course title for more information or view all SIMULIA training courses.


This article was originally published in the March 2016 issue of SIMULIA Community News magazine.

Claudia Bangert

Senior Technical Specialist, SIMULIA WW Training at Dassault Systemes Deutschland GmbH
Claudia is an Industry Process Expert Senior Specialist at Dassault Systèmes in Karlsruhe, Germany. After receiving her PhD in computer aided geometric design from the Karlsruhe Institute of Technology in 1999 she joined FE-Design which later became a part of Dassault Systèmes. She now works for SIMULIA’s world-wide training team with main focus on structural optimization and e-learning.