Altair OptiStruct Online Help

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Example Guide
The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides you with examples of the real-world applications and capabilities of OptiStruct.
Frequency Response Analysis

What's New
Overview
Tutorials
User Guide
Reference Guide
Example Guide
Verification Problems
Frequently Asked Questions
HyperWorks Solver Run Manager

Altair OptiStruct Online Help

What's New
View new features for OptiStruct 2020.
Overview
OptiStruct^® is an industry proven, modern structural analysis solver for linear and nonlinear structural problems under static and dynamic loadings.
Tutorials
Discover OptiStruct functionality with interactive tutorials.
User Guide
This manual provides detailed information regarding the features, functionality, and simulation methods available in OptiStruct.
Reference Guide
This manual provides a detailed list and usage information regarding input entries, output entries, and parameters available in OptiStruct.
Example Guide
The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides you with examples of the real-world applications and capabilities of OptiStruct.
- Access the Model Files
  Required model files for the models you build.
- Nonlinear Small Displacement Analysis
- Nonlinear Large Displacement Analysis
- Nonlinear Transient Analysis
- Frequency Response Analysis
  - OS-E: 0300 Modal Participation
    Deals with requesting Modal Participation for a Modal Frequency Response analysis using OptiStruct.
  - OS-E: 0305 Preloaded Modal Frequency Response Analysis
    A Preloaded Modal Frequency Response Analysis of folding blade shaft which is mounted on the bolted flange.
  - OS-E: 0310 Transfer Path Analysis
    Demonstrate a Transfer Path Analysis (TPA) on a simplified vehicle model using OptiStruct. TPA is used to calculate and rank the noise or vibration contributions for a given Response Point, through the different structural transmission paths in a system.
  - OS-E: 0315 Design Sensitivity Analysis
    Demonstrates how to identify sensitive design parameters within a full vehicle NVH model, both as a way to understand the dynamics of the system and what design changes can be made to improve a vehicle response, using OptiStruct and NVH post-processing in HyperView.
  - OS-E: 0320 Acoustic Analysis of a 2.1 Speaker using Infinite Elements
    Demonstrate Infinite Elements, which is effectively modeled to measure the sound pressure of the 2.1 Home Theater System in OptiStruct with effective modeling practice.
  - OS-E: 0325 3D Rotor Dynamics Model
    This example is about running a Frequency Response Analysis of a 3D Rotor dynamics model using OptiStruct.
  - OS-E: 0330 Sine Sweep Fatigue Analysis
    Sine sweep fatigue analysis of a simple bracket is done to study the fatigue life of the structure under sinusoidal loading using OptiStruct.
  - OS-E: 0335 Measure Sound Radiation from Impacting Plates
    Explicit Analysis of the impacting plates to extract the contact forces and performing Frequency Response Analysis using these forces as input to study the sound radiation by the plates.
- Normal Modes Analysis
- Complex Eigenvalue Analysis
- Thermal and Heat Transfer Analysis
- Analysis Techniques
- Topology Optimization
  This section presents optimized topology examples generated using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used as a design concept tool.
- Size (Parameter) Optimization
  This section presents size (parameter) optimization examples solved using OptiStruct. Each example uses a problem description, execution procedures, and results to demonstrate how OptiStruct is used in size optimization.
- Free-shape Optimization
- Shape Optimization
  This section presents shape optimization example problems, solved using OptiStruct. Each example uses a problem description, execution procedures and results to demonstrate how OptiStruct is used in shape optimization.
- Topography Optimization
  The examples in this section demonstrate how topography optimization generates both bead reinforcements in stamped plate structures and rib reinforcements for solid structures.
- ESLM Optimization
  The examples in this section demonstrate how the Equivalent Static Load Method (ESLM) can be used for the optimization of flexible bodies in multibody systems.
- Multiphysics
- Rotor Dynamics
- Response Spectrum
- Nonlinear Explicit Analysis
Verification Problems
This manual presents solved verification models including NAFEMS problems.
Frequently Asked Questions
This section provides quick responses to typical and frequently asked questions regarding OptiStruct.
HyperWorks Solver Run Manager
The HyperWorks Solver Run Manager is a unified utility that allows the user to start different HyperWorks Solvers.

View All Altair HyperWorks Help

Altair OptiStruct Online Help

Home
Example Guide
The OptiStruct Example Guide is a collection of solved examples for various solution sequences and optimization types and provides you with examples of the real-world applications and capabilities of OptiStruct.
Frequency Response Analysis

What's New
Overview
Tutorials
User Guide
Reference Guide
Example Guide
Verification Problems
Frequently Asked Questions
HyperWorks Solver Run Manager

Frequency Response Analysis

OS-E: 0300 Modal Participation
Deals with requesting Modal Participation for a Modal Frequency Response analysis using OptiStruct.
OS-E: 0305 Preloaded Modal Frequency Response Analysis
A Preloaded Modal Frequency Response Analysis of folding blade shaft which is mounted on the bolted flange.
OS-E: 0310 Transfer Path Analysis
Demonstrate a Transfer Path Analysis (TPA) on a simplified vehicle model using OptiStruct. TPA is used to calculate and rank the noise or vibration contributions for a given Response Point, through the different structural transmission paths in a system.
OS-E: 0315 Design Sensitivity Analysis
Demonstrates how to identify sensitive design parameters within a full vehicle NVH model, both as a way to understand the dynamics of the system and what design changes can be made to improve a vehicle response, using OptiStruct and NVH post-processing in HyperView.
OS-E: 0320 Acoustic Analysis of a 2.1 Speaker using Infinite Elements
Demonstrate Infinite Elements, which is effectively modeled to measure the sound pressure of the 2.1 Home Theater System in OptiStruct with effective modeling practice.
OS-E: 0325 3D Rotor Dynamics Model
This example is about running a Frequency Response Analysis of a 3D Rotor dynamics model using OptiStruct.
OS-E: 0330 Sine Sweep Fatigue Analysis
Sine sweep fatigue analysis of a simple bracket is done to study the fatigue life of the structure under sinusoidal loading using OptiStruct.
OS-E: 0335 Measure Sound Radiation from Impacting Plates
Explicit Analysis of the impacting plates to extract the contact forces and performing Frequency Response Analysis using these forces as input to study the sound radiation by the plates.

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