Altair OptiStruct is the industry's most powerful structural analysis and optimization solver that can be used to analyze linear and nonlinear structural problems under static and dynamic loads. As a market leader in structural design and optimization, OptiStruct helps designers and engineers analyze and optimize structural stress, durability and NVH (noise, vibration and harshness) characteristics and quickly develop innovative, lightweight and efficient structural designs.

Advanced solver technology and accurate calculation results

Based on finite element and multi-body dynamic methods, OptiStruct has first-class structural analysis and optimization techniques. Compared with the traditional solver, linear, nonlinear and modal analysis problem solving algorithm is very efficient. With intelligent memory management technology, OptiStruct can easily simulate the structure with millions of degrees of freedom, there is no limit on the size of the model.

Built-in fast large-scale eigenvalue solver

The standard feature of OptiStruct, which has an automated multi-level sub-structure eigenvalue solver (AMSES), can calculate the tens of thousands of modes of the million degrees of freedom model in less than an hour.

The most advanced and fastest NVH analysis solver

OptiStruct has the most advanced solver technology, which is essential for efficient vehicle noise and vibration analysis is essential. It is the fastest NVH analysis solver on the market that offers unique advanced features including one-step TPA (transfer path analysis) analysis, AMSES, model reduction technology, design sensitivity and ERP (equivalent radiated power) response, which makes it Can easily optimize the structure of the NVH performance.

Strong Power System Durability Analysis Solver

OptiStruct enables power system durability analysis by bolting preload, gasket units and effective contact algorithms. The gasket unit is very robust and does not require the use of other software to do some additional work.

OptiStruct height difference is characterized by its speed, accuracy and stability. The solver's diagnostic function provides unparalleled model debugging capabilities, further accurate simulation of the design model.

Award-winning optimization technology

OptiStruct optimization technology is the world's strongest. Using the most advanced optimization algorithms, OptiStruct can solve the most complex optimization problems with thousands of design variables in a very short time. The advanced optimization engine allows users to combine topologies, topography, size and shape optimization methods To create more and better design, to guide the rational and lightweight structural design.

Topology optimization

OptiStruct first-class integrated design technology, the use of topology optimization can be creative concept design. At the initial stage of the R & D, the user enters a set of spatial information, design goals, and manufacturing process parameters, and then OptiStruct optimizes to generate a manufacturable optimization design based on a given design goal. Manufacturing process parameters are important for generating easy-to-interpret and manufacturable designs.

Composite material optimization

OptiStruct's professional composite design and optimization module enables designers and analysts to streamline the composite structure design process. This paving-based approach simplifies the interpretation of conceptual design results for free-scale optimization.

OptiStruct also considers manufacturing requirements early in the design process to get a practical design, giving the order to meet these requirements.

Multidisciplinary structure optimization

OptiStruct seamlessly integrates first-class gradient-based optimization methods that make multidisciplinary size and shape optimization easy to use, stable and very fast. Based on the results of the analysis, the product engineer proposes to modify the recommendations to meet stress, weight and stiffness requirements.

System-level optimization design

The equivalent static load method (ESLM) is an innovative method for simultaneous optimization in multi-body dynamics analysis involving rigid bodies and flexible bodies. The earliest application in the industry's innovative approach allows system-level multi-body dynamics optimization. In addition ESLM can be applied to conceptual design and design fine-tuning.

Conceptual Design and Optimization Based on Fatigue

OptiStruct's fatigue optimization feature allows conceptual design based on fatigue properties (topologies, topography and free size) and detailed design (dimensions, shapes and free shapes). Stress and life from stress-life or strain-life fatigue analysis can be used as a standard for design. This feature allows the use of fatigue responses in conceptual design, which is more efficient and computationally more efficient than using third-party software for fatigue-based optimization.

Simple modeling, postprocessing, automation

OptiStruct tightly integrated in the HyperWorks environment, can easily and quickly create a model in HyperMesh. Animations, clouds and charts can be generated in HyperView and HyperGraph. In addition, through the use of HyperWorks in the powerful automation and data management, easy to achieve post-processing automation.

Cost-effective NASTRAN alternatives

OptiStruct is highly compatible with NASTRAN. OptiStruct uses the standard NASTRAN input syntax and outputs the analysis results in the PUNCH and OUTPUT2 formats. OptiStruct supports existing NASTRAN models to address the most common linear analysis issues. OptiStruct is highly integrated in HyperWorks, improving user efficiency and reducing the company's investment in third-party solvers.

Features and Functions

Analysis type

Linear and nonlinear static analysis of linear buckling analysis

Stochastic response analysis fluid - solid coupling analysis

Modal analysis, real eigenvalue and complex eigenvalue analysis

Direct and Modal Methods Frequency Response Analysis Linear Direct and Modal Transient Analysis

Linear Steady State and Transient Heat Transfer Conduction Analysis Coupled with Static Analysis

Stiffness, strength and stability

Using non-linear analysis results as preload, subjected to buckling analysis, frequency response and transient analysis

Convergence of Contact Analysis with Improved Friction

A second-order entity unit that supports contact

Noise and vibration

AMSES Large Scale Eigenvalue Solver

Fast large-scale modal solver (FASTFR)

Detailed output of response frequency peak (PEAKOUT)

Based on ERP optimization and radiation acoustics

Automatic One Step Pass Path Analysis (PFPATH)

Power system durability

One-dimensional and three-dimensional bolt prestressing

The modeling of the gasket

Friction contact analysis

Consider the nonlinear analysis of hardening

Thermal analysis

Linear transient heat transfer;

Thermal contact

Kinematics and dynamics

Static Structural Analysis Based on Heat Transfer Result

Solving Linear Transient Heat Transfer

Hot contact

Structural optimization

Topology optimization

Size and free size optimization

Topography optimization

Shape and free shape optimization