Altair OptiStruct.
An optimization-enabled multiphysics solver
for structural, thermal, fatigue, and acoustic analyses
Built-in design optimization
Altair OptiStruct is an optimization-enabled multiphysics solver that unites structural, thermal, fatigue, and acoustic analyses with powerful built-in design optimization.
By merging performance simulation and optimization in one environment, OptiStruct helps engineers reduce weight, increase stiffness, and accelerate innovation—cutting both cost and time to market.
Unified multiphysics simulation environment
Perform linear and nonlinear structural analysis alongside thermal, acoustic, piezoelectric, and coupled electrical–thermal behavior—all within a single model.
Altair OptiStruct takes a “one-model, one-solver” approach that eliminates redundant re-work and data translation, ensuring consistent results across design disciplines and simplifying the engineering workflow.
Built-in optimization (not bolted-on)
Optimization isn’t an afterthought in Altair OptiStruct—it’s part of its DNA.
Engineers can perform topology, free-size, shape, size, and multi-material optimization directly inside the solver, without external plug-ins or scripting.
This seamless integration allows teams to simultaneously evaluate weight, stiffness, durability, manufacturability, and cost, turning simulation into a driver of design innovation rather than just verification.
High-performance scalability and solver efficiency
Altair OptiStruct scales efficiently across multi-core CPUs, GPUs, and distributed computing environments. Its advanced solvers—AMSES (Automatic Multi-Level Substructuring EigenSolver) and FASTFR (Fast Frequency Response)—solve extremely large modal and dynamic models with millions of degrees of freedom at high speed and accuracy.
Engineers gain enterprise-grade performance and shorter iteration cycles, even for complex vehicle or aerospace assemblies.
Robust nonlinear and explicit capabilities
Altair OptiStruct handles geometric nonlinearities, large deformation, contact interactions, and material nonlinearities such as plastic and hyperelastic behavior.
Integrated explicit analysis captures high-speed impact and drop events within the same environment, bridging the gap between static validation and dynamic real-world performance.
Accelerating business value through integration and insight
By combining multiphysics analysis, built-in optimization, and high-performance computing in a single framework, Altair OptiStruct reduces toolchain complexity and speeds up the entire design process.
Gain lighter, stronger, and more manufacturable products while lowering the need for costly prototypes and physical testing—delivering measurable ROI and competitive advantage.