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Ansys optiSLang
Process Integration & Design Optimization 

Orchestrate and automate your simulation toolchains and connect to state-of-the art optimization algorithms to perform parametric design studies and better understand your designs. 


Parametric Design Studies Made Easy

Ansys optiSLang is a constantly evolving, leading-edge answer to the challenges posed by CAE-based Robust Design Optimization (RDO). Its state-of-the-art algorithms efficiently and automatically search for the most robust design configuration, eliminating the slow, manual process that used to define RDO. With optiSLang as your process integration and design optimization solution, you’ll make the right decisions sooner.

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    Process Automation
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    Optimization & Uncertainty Quantification
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    Design of Experiments & Sensitivity Analysis
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    Ansys Minerva Integration

Quick Specs

Accelerate searches for the best and most robust design configuration by automating the search process with interactive visualization and AI technologies. State-of-the-art algorithms for design exploration, optimization, robustness and reliability analysis let you make better decisions with less effort using design optimization software.

  • Process Automation
  • Robust Design
  • Reduced-Order Modeling
  • Simulation Workflow Building
  • Design of Experiments
  • CAx Connectors
  • Optimization
  • Model Calibration
  • Ansys Minerva Integration

Multi-Body Simulation of Truck Mountings on Rough Road Conditions

Ansys optiSLang enables a simulation of loads based on fast and cost-effective measurable signals for an efficient assessment of changes to the drivetrain configuration without the repetition of expensive driving tests.


Multi-Body Simulation of Truck Mountings on Rough Road Conditions

Ansys optiSLang enables a simulation of loads based on fast and cost-effective measurable signals for an efficient assessment of changes to the drivetrain configuration without the repetition of expensive driving tests.

January 2021

What's New

Set up and run simulations in Ansys Discovery for a wide range of industries and applications faster and easier than ever before with new multiphysics capabilities, performance improvements and dynamic collaboration updates.  

Orchestrate and Automate with New Nodes
Orchestrate and Automate with New Nodes

Engineers can create sophisticated toolchains using the new nodes for Ansys LS-Dyna, Ansys SpaceClaimNastran and Ansys ModelCenter and improved nodes for Ansys Electronics Desktop and Ansys Workbench.

New partnership with Probaligence GmbH
New Partnership with Probaligence GmbH

Ansys optiSLang continues to deliver the best of design understanding and optimization algorithms through a partnership with Probaligence, which provides AI/ML technology to increase the breadth of state-of-the-art optimization.

Desktop Apps from optiSLang’s App Generation Wizard
Desktop Apps from optiSLang’s App Generation Wizard

Simulation and optimization experts can build automated workflows, create apps from these automations, and test their apps locally on a desktop before deploying. 

Streamline and automate your RDO process with leading-edge AI and interactive visualization

Ansys optiSLang is a process integration and design optimization solution that automates key aspects of the robust design optimization process. optiSLang connects multiple CAx tools and different physics into a holistic, multi-disciplinary approach to optimization. Additionally, it enables simulations processes to be standardized and shared, giving new hires and simulation novices more direct access to simulation. With this powerful toolset, your entire team of engineers and designers can gain a better, more complete understanding of their design and make the right decisions sooner.



Key Features

optiSLang supports integration with a variety of CAx programs and offers powerful RDO tools to gain critical insights faster

Ansys optiSLang offers GUI-supported binary interfacing with major CAE tools used in virtual product development. Other tools can be connected via scripting, text-based interfaces or custom integrations. You get support for tools including CAD, CAE, scripting, desktop applications, repositories, databases and in-house solvers. With support for high-performance computing strategies, you can submit jobs using your queuing system or Ansys-provided submitting capabilities. Regardless of which environment you choose, optiSLang provides the same settings and dialogs.

Process automation and integration — as well as access to the best possible parametric simulation models — are the keys to successful CAE-based parametric studies. Our graphical user interface provides easy-to-understand charts and control panels that enable full access and traceability of the complete workflow. 

Simulation plays a big role in understanding products and processes, especially complex ones. Parameter-based variation analysis gives you insight into how your design behaves under variability. Multidisciplinary optimization tasks often require a huge number of variables, and it can be difficult to know where to focus. optiSLang’s algorithms and correlation analysis automatically identify the most salient variables, reducing the number of design variables you must worry about. The program’s sensitivity analysis also creates the basis to appropriately formulate the optimization task with respect to choice and number of objectives or possible constraints, helping you quickly zero in on the best approximation model.

Reduced Order Modeling — Ansys optiSLang builds metamodels for rapid feedback and robust design analysis in a fraction of the time it would take to run a simulation to predict a certain design.

Design optimization and parameter identification — Ansys optiSLang’s powerful algorithms and automated workflows build on earlier steps of sensitivity analysis to provide a wizard-driven decision tree to recommend the optimizer with default settings.


To allow cooperation in multiphysical simulation and multidisciplinary optimization, the automation and publishing of workflows for several repetitive tasks, as well as simulation data management become essential, like:

  • Transfer of results of one discipline as input into the next step of operation
  • Post-processing steps, reports and result extraction
  • Model generation tasks
  • Variants comparison for finding an optimal design
  • Subsequent optimization runs with adapted constraints and objectives

A powerful solution to overcome these challenges is the combination of Ansys optiSLang and Ansys Minerva.

Similar to sensitivity analysis, robustness analysis identifies the most important scattering variables and offers a decision tree to select the most appropriate algorithms to verify robustness and reliability for your product or situation. This is key for designs that must meet high safety or quality requirements with event probabilities of less than 1 out of 1,000. A reliability analysis can quantify the probability of exceeding a limit and prove it to be less than the accepted value. optiSLang’s powerful algorithms help ensure product quality, minimizing scrap, recall and the risk of legal action.


Ansys optiSLang License

The Ansys optiSLang premium and enterprise licensing categories give you the flexibility to choose the product that best fits your needs. While the premium offering gives you access to a broad set of simulation workflow automation and optimization capabilities, an enterprise license is required to build apps, leverage AI for metamodeling, and conduct a much higher number of concurrent variations.

Below is a breakdown of how concurrent variations work with each license type:

  • n optiSLang Premium licenses enable (3n+1) concurrent variations. For example, 1 optiSLang Premium + 1 CFD Premium = 4 concurrent Fluent variations.
  • n optiSLang Enterprise licenses enable (7n+1) concurrent variations. For example, 1 optiSLang Enterprise + 1 Mechanical Enterprise = 8 concurrent Mechanical variations.

Product Packages




Algorithms for design point studies    
Optimization & sensitivity analysis    
Robust design & reliability analysis    
Model calibration    
Process Integration    
Build and automate workflows    
Integrate 3rd party tools    
Embedded in ANSYS Workbench    
Web app building    
Reduced Order Modeling    
Scalar meta-modeling (incl. test data)​    
Signal/Field meta-modeling (incl. sensor & 3D scan data)​    
Modeling of imperfect structures for UQ​    
AI for meta-modeling​    
Variations (design points)    
Concurrent design point variations​ 1+3=4 1+7=8


Featured Webinars

Webinar Series
optiSLang webinar series
Orchestrate and Optimize Your Simulations with Ansys optiSLang

Ansys optiSLang Webinar Series

Each of these webinars will consider specific applications to demonstrate the core capabilities of Ansys optiSLang such as sensitivity analysis, design exploration, optimization, robustness, and reliability analysis in the context of various CAE tools.

Case Studies


Analysis of Low Cycle Fatigue Considering Geometric Manufacturing Tolerances: Ansys + SIEMENS

SIEMENS AG applies Ansys, Statistics on Structures and Ansys optiSLang for probabilistic analyses of geometric variations and their influence on the fatigue behavior of a gas turbine housing.


Validation of ADAS using Reliability Analysis Methods to Save a Factor of 1000 Simulations Per Scenario

Find out how Mercedes Benz uses Ansys technology to develop and test the reliability advanced driver assistance systems (ADAS). 


Best Practice, Best Product

For over 40 years, ANSYS has supplied bestin-class engineering software worldwide and currently supports the success of product development teams at more than 45,000 customer organizations.


Window of Opportunity

Robust design optimization ensures high-quality window mechanisms over a wide range of applications.


Virtual Quality Assurance in the Digital Orthopaedic Workshop of the Future

The emerging field of virtual medical certification requires accurate and reliable FE-simulations in order to speed up the regulatory approval process of individualized prostheses and orthoses.


Robust optimization of continuously reinforced composites in the motorcycle industry: Ansys + KTM

At KTM, Statistics on Structures is used for the consideration of scattering production and material parameters to optimize the design phase of lightweight components used in the automotive and motorcycle industry.


Practical application of CAE-based RDO in civil engineering: Ansys + HALFEN

Read this case study of the practical application of CAE-based RDO in civil engineering. 

White Papers & Articles


White Paper Icon

Model Calibration of a Railway Vehicle

With the help of Ansys optiSlang, calibration of a numerical model of Alfa Pendular train, including the car body, bogies and passenger-seat system, was conducted based on the natural frequencies and modal configurations estimated from dynamic tests.


Safety of the Intended Functionality: How Ansys Can Help You Meet This New Standard for Autonomous Vehicles

While the new SOTIF standard requires a higher level of engineering, Ansys can help. With a full range of safety analysis and engineering simulation solutions, Ansys enables autonomous vehicle development teams to build flawless performance into their designs from the earliest stages ― and verify that performance before vehicles ever hit the road. 


Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

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