Home
Squeak and Rattle
Create and evaluate evaluation lines and optimize interfaces to eliminate squeak and rattle issues.
Post Processing
Launch and explore SnRD Post Processing.
Optimization
Setup an optimization solver deck to get solution proposals.
Setup Non Systematic Optimization
The non systematic optimization method is used to setup a 2D free-size topology optimization to highlight the load paths and areas to reinforce.

Welcome
What's New
View new features for HyperMesh NVH 2024.1.
Get Started
Learn the basics and discover the workspace.
Tutorials
Discover NVH functionality with interactive tutorials.
Full Vehicle NVH
Access the Assemble, Analyze, NVH Tools, NVH Post, and Physics AI ribbons.
High Frequency NVH
High frequency NVH is an implementation of Statistical Energy Analysis (SEA), and is used to predict and analyze the vibration and acoustic response of complex dynamic systems.
Squeak and Rattle
Create and evaluate evaluation lines and optimize interfaces to eliminate squeak and rattle issues.
- Technical Concepts
  Technology and problem evaluation approaches used in SnRD.
- Launch Squeak and Rattle Director
- Pre-Processing
  Explore the SnRD Pre-Processing user interface.
- Post Processing
  Launch and explore SnRD Post Processing.
  - Load and Post Process Results
  - Perform Sensitivity Analysis
    Use a sensitivity analysis to study modal contribution.
  - Perform Combined Loadings Analysis
    Use the Combined Loadings tab to review and analyze the effects of Dynamic and Static loads on the gap and relative displacement.
  - Optimization
    Setup an optimization solver deck to get solution proposals.
    - Setup Systematic Optimization
      Systematic method can be used to setup a 1D topology optimization to highlight and find the prominent locations to add or position fixation points.
    - Setup Non Systematic Optimization
      The non systematic optimization method is used to setup a 2D free-size topology optimization to highlight the load paths and areas to reinforce.
      - Setup Non Systematic Optimization Deck
      - Non Systematic Optimization Options
    - Export Optimization Deck
      Export of optimization solver deck and perform Fourier Transformation.
  - DOE and Stochastics
    Use DOE and Stochastics to understand the parameter variation study.
- Ziegler PEM Material Database
  Use of Altair Ziegler SnRD Material Database.

Setup Non Systematic Optimization

The non systematic optimization method is used to setup a 2D free-size topology optimization to highlight the load paths and areas to reinforce.

Often, an interpretation to feasible design is required by the design and manufacturing team.