Altair Twin Activate Software | System Simulation & Digital Twins
Model, simulate, and validate complex systems while connecting your designs to real-time digital twin environments.
System Simulation Platform
What is Altair Twin Activate?
A multidisciplinary system simulation environment for modeling, validating, and deploying dynamic systems and digital twins.
Altair Twin Activate enables engineers to design and simulate complex systems using an intuitive block-diagram environment. It supports continuous and discrete-time modeling, control system design, and multi-domain simulation, including Modelica-based physical modeling and SPICE circuit simulation. With capabilities such as co-simulation, code generation, and FMI integration, it helps teams develop, validate, and deploy digital twins across the product lifecycle.
Key Features Of Altair Twin Activate
Powerful system simulation and modeling capabilities to design, validate, and deploy dynamic systems and digital twins.
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Whole-System Simulation and Digital Twin Workflows
Twin Activate is designed for whole-system simulation, helping engineers model system behavior across interacting subsystems and move those workflows toward real-time digital twin deployment. Its mixed-fidelity approach supports faster assessment of the parts of the system that matter most.
Block-Diagram Modeling for Control Design
The block-diagram environment supports the development of smart systems that include sensors, actuators, feedback, and logic. This makes Twin Activate especially relevant for controller design and signal-based dynamic system development.
Mixed Physical and Signal Modeling
Twin Activate combines signal-based modeling with physical component modeling in the same environment. Official product information highlights predefined Modelica libraries for common mechanical, electrical, hydraulic, and thermal components.
Capabilities Of Altair Twin Activate
Advanced capabilities for multi-domain modeling, control systems, physical simulation, and model interoperability.
Continuous and Discrete Dynamic System Simulation
Twin Activate supports the modeling and simulation of continuous and discrete dynamical systems, which is central to control development, system behavior studies, and dynamic product analysis.
Hierarchical and Parameterized Models
The software supports hierarchical, parameterized models, helping teams organize complex system diagrams and manage model behavior through structured parameters and scoped model logic.
Physical Modeling with Modelica
Twin Activate includes Modelica-based physical modeling and can import Modelica libraries and models into its own library structure. Official help content points to electrical, mechanical, magnetic, and thermal domains within the standard Modelica support.
Electronic Circuit Modeling with SPICE
The platform supports electronic circuit modeling with SPICE, which expands Twin Activate beyond control logic into broader system-level electrical and electronic simulation workflows.
FMI and FMU Interoperability
Twin Activate supports Functional Mock-Up Interface workflows for model exchange and co-simulation. FMUs can be imported as blocks, and Twin Activate super blocks can be exported as FMUs for exchange with other FMI-compatible tools.
Code Generation and Export
Twin Activate can generate C code from super blocks and use that generated code for new blocks, standalone Windows and Linux applications, embedded targets such as Arduino, and export paths into other simulation environments.
Co-Simulation with Other Altair Tools
Official product information highlights co-simulation with MotionSolve for controlled multibody dynamics, Flux for controlled motor performance, and PSIM for power converter and motor drive simulation.
Open Language, API, and Scripting Support
Twin Activate is presented as an open integration platform with support for Modelica, SPICE, Python, OpenMatrix (OML), and C. The documentation also includes block-diagram, utility, and simulation APIs for deeper customization and automation.
Import and Communication Workflows
The help system documents import tools for Modelica models, Embed diagrams, and SSP models. Twin Activate also supports digital twin communication workflows through MQTT for publish and subscribe use cases.
Expert Altair Twin Activate Support by True Insight
Dedicated Support for Twin Activate
Licensing, demos, and product guidance
TrueInsight is an Altair and Siemens channel partner that helps engineering teams evaluate software, choose the right licensing path, onboard users, and build practical workflows around simulation tools. Beyond licensing, TrueInsight also offers technical guidance, custom Altair training, and broader engineering services across simulation, electronics, and manufacturing-related work when implementation needs go beyond software access alone.
Articles & Resources
Customer Story - Hitachi
Hitachi Lightweight Mining Haulers Optimized
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Customer Story - Ankers
Co-simulation using a combined multibody and brake systems mode.
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Understanding Digital Twins with Altair Solutions
The term "digital twin" is evolving. In this post we walk through Altair Engineering solutions that directly aid in a modern digital twin deployment.
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Design of Steering System on Autonomous Car using Altair Simulation
In the final part in our four part series about designing a robotic car using Altair solutions, we look at the steering system and how that can be done.
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Power Electronics Design & Simulation Software
Relevant for power converter, motor drive, and power electronics workflows that connect to Twin Activate.
Explore PSIM →
Embedded Systems Development
A strong related product for users moving from system simulation toward generated-code deployment and target-side testing workflows.
Explore Embed →Frequently Asked Questions
It is used to create and simulate multi-disciplinary dynamic system models. It is especially useful for signal-processing and controller-design work, while also supporting broader system-level simulation and digital twin workflows.
No. Control design is an important part of the product, but the official scope is broader. It also supports physical system modeling, electronic circuit modeling, system-of-systems simulation, and digital twin workflows.
Yes. Twin Activate supports physical modeling with Modelica and electronic circuit modeling with SPICE. It also includes tools for importing Modelica libraries and models.
Yes. Twin Activate supports FMI-based model exchange and co-simulation. FMUs can be imported into Twin Activate, and Twin Activate super blocks can be exported as FMUs for other FMI-compatible environments.
Yes. The software can generate C code from super blocks for several uses, including standalone applications, embedded targets such as Arduino, and export paths into tools like Embed and PSIM. Some code generation workflows require the commercial edition and an appropriate compiler setup.
Twin Activate can co-simulate with MotionSolve, Flux, and PSIM for more detailed multidisciplinary studies. It can also export generated code as an Embed block, which supports downstream target-side testing and deployment-oriented workflows.
Ready To Take The Next Step With Twin Activate?
Talk to our experts, request a demo, and start building high-performance system simulations and digital twins.