OptiStruct is an industry proven, modern structural analysis solver for linear and nonlinear problems under static and dynamic loadings. It is the market-leading solution for structural design and optimization.
Based on finite-element and multi-body dynamics technology, and through advanced analysis and optimization algorithms, OptiStruct helps designers and engineers rapidly develop innovative, lightweight and structurally efficient designs. Continuing to build on its 20 year legacy of providing innovative optimization technology first-to-market, OptiStruct offers novel solutions for the design and optimization of 3D printed lattice structures and advanced materials such as laminate composites, in keeping up with the latest manufacturing trends like additive manufacturing, while driving design trends. OptiStruct is used by thousands of companies worldwide to analyze and optimize structures for their strength, durability and NVH (noise, vibration and harshness) characteristics.
Accurate and Comprehensive Physics
An inaccurate simulation is one not worth performing. This becomes more important when designs are being driven and optimized based on simulation results. Therefore, at Altair, we strive to develop accurate and comprehensive analysis solutions that capture the behavior of products in the everyday environment that they are developed to exist in.
Highly Parallelized Solver
OptiStruct is a highly parallelized solver that is able to take advantage of the latest hardware technology. Through methods such as domain decomposition, OptiStruct can be executed on hundreds of cores. This has even bigger implications in the larger design development scheme, allowing engineers the ability to perform large scale optimization runs, design for reliability and robustness, and carry out design exploration studies via design of experiments and so on.
Most Advanced Solver for NVH Analysis
OptiStruct supports the most advanced features and process workflows necessary for efficient and effective noise, vibration, harshness and acoustic analyses. Through innovative process workflows, full vehicle NVH analyses can be performed very quickly and efficiently.
Better Performing, Lightweight and Innovative Designs
The strategic use of appropriate optimization technology throughout the design process maximizes the potential for designers and engineers to rapidly develop better performing designs. Through these advanced optimization algorithms in OptiStruct, often, better performance comes along with a reduction in weight through the development of an innovative design concept.
Optimization Enabled Solution
Optimize! Optimize! Optimize! The most efficient way to meet the many, often conflicting and challenging design requirements in a timely and economical manner is through the application of optimization in the design process. Simulation needs to drive the design process. Therefore, the OptiStruct development strategy of enabling analysis solutions for optimization stands out as one of our differentiators, while empowering clients with the best technology to develop the best designs.
20 Year Legacy of Award Winning Optimization Technology
For over 20 years now, OptiStruct has lead the development of new and innovative optimization technology. This includes many first-to-market technologies such as stress and fatigue based topology optimization, topology driven design for 3D printed lattice structures, and technologies for the design and optimization of laminate composite structures among others. OptiStruct provides the most comprehensive library of optimization responses and manufacturing constraints allowing the needed flexibility to formulate the widest range of optimization problems.
Seamless Integration into Existing Processes
Integrated in HyperWorks, OptiStruct can help significantly reduce corporate spending on competitive solver technology. Furthermore, utilizing existing pre- and post-processing environments with superior analysis workflows, OptiStruct can be seamlessly integrated in existing processes with minimum disruption.
Recover Valuable Engineering Time
Simplified and easy to understand error messages, combined with strict model checking contribute to more accurate simulation of design behavior. This allows more time for engineering instead of time spent model debugging as well as iterating due to modeling errors.
Easy to Learn
Using streamlined analysis workflows and the commonly understood Nastran input format, OptiStruct is very easy to learn and to have integrated in to existing processes.
Integrated Fast and Large Scale Eigenvalue Solver: A built-in, standard feature of OptiStruct in an Automated Multi-level Sub-structuring Eigen Solver (AMSES) that can rapidly calculate thousands of modes with millions of degrees of freedom.
Advanced NVH Analysis: OptiStruct provides unique and advanced functionality for NVH analysis including one-step TPA (Transfer Path Analysis), Powerflow analysis, model reduction techniques (CMS and CDS super elements), design sensitivities, and an ERP (Equivalent Radiated Power) design criterion to optimize structures for NVH.
Robust solver for nonlinear analysis and powertrain durability: OptiStruct has grown to support a comprehensive range of physics for powertrain analysis. This includes solutions for heat transfer, bolt and gasket modeling, hyperelastic materials, and efficient contact algorithms.
Creating Design Concepts
Optimization for Design Fine-Tuning
Design and Optimization of Laminate Composites: A unique 3-phase process has been implemented in OptiStruct to aid in the design and optimization of laminate composites. The process is based on a natural and easy-to-use ply based modeling approach. This also facilitates incorporating various manufacturing constraints, such as ply drop-off, specific to laminate composite design. Application of this process yields optimal ply shapes (phase 1), optimal number of plies (phase 2) and the optimal ply stacking sequence (phase 3).
Design and Optimization of Additively Manufactured Lattice Structures: Lattice structures offer many desirable characteristics such as lightweight and good thermal properties. They are also highly desirable in biomedical implants due to their porous nature and the ability to facilitate the integration of tissue with the trabecular structure. OptiStruct has a unique solution to design such lattice structures based on topology optimization. Subsequently, large scale sizing optimization studies can be run on the lattice beams while incorporating detailed performance targets such as stress, buckling, displacement and frequency.
Stiffness, Strength and Stability
Noise and Vibrations
Heat Transfer Analysis
Kinematics and Dynamics