2022

Home
Full Vehicle NVH
Post-Processing and Diagnostics
Define radiation conditions and create emissivity models.
Flow Induced Noise/General Signal Processing
The General Signal Processing utility processes the time domain pressure results from CFD simulations and visualizes the results in both the time and frequency domain.
General Signal Processing - Load Tab
Use the to Load tab to load the UltraFluidX transient results file. Input file formats *.csv , *.h3d, and *.case are supported.

What's New
Get Started
Tutorials
Full Vehicle NVH
High Frequency NVH

2022

What's New
View new features for NVH 2022.
Get Started
Learn the basics and discover the workspace.
Tutorials
Discover NVH functionality with interactive tutorials.
Full Vehicle NVH
- Assembly
  Learn how to create, open, import and save models.
- Analysis
  Set up the simulation model, materials, domains and boundaries.
- NVH Tools
- Prepare Module
  Create, organize and manage the CAE parts.
- Post-Processing and Diagnostics
  Define radiation conditions and create emissivity models.
  - Load an NVH Utility
  - Integrated Diagnostics
    Calculate a response, perform contribution analysis, plot results, and perform diagnostic studies and study response changes.
  - Modal Participation
    Plot modal/panel participation curves from an OptiStruct .h3d file or an MSC Nastran .f06/.pch file.
  - Grid Participation
    The Grid Participation utility allows you to plot panel grid participation results and then use advanced scaling contour capabilities to isolate key contributing areas.
  - Energy Distribution
    Visualize the distribution of energy within a full vehicle NVH model, as a way to understand what components are dominating the vehicle response.
  - Transfer Path Analysis
    Identifies the complex contribution of the excited structure through attachment points to a response in the responding structure.
  - Design Sensitivity Analysis
    Design sensitivity represents a change in response with respect to a change in a design variable, which is typically used for optimization.
  - Order Analysis
    Generates and post-processes engine order related data from an OptiStruct or Nastran frequency response analysis that contains either RPM-based loading subcases or order-based loading subcases.
  - Modal FRF
    Calculate a frequency response based on modal results.
  - Model Correlation
    The Model Correlation utility determines the degree of similarity or correlation between two sets of results.
  - Radiated Sound
    The Equivalent Radiated Sound utility post-processes the results of exterior structure-borne radiated sound.
  - Global Modes
    Identifies global modes from an OptiStruct or Nastran modal analysis.
  - Flow Induced Noise/General Signal Processing
    The General Signal Processing utility processes the time domain pressure results from CFD simulations and visualizes the results in both the time and frequency domain.
    - General Signal Processing - Load Tab
      Use the to Load tab to load the UltraFluidX transient results file. Input file formats *.csv , *.h3d, and *.case are supported.
    - General Signal Processing - Probes Tab
      The Probes tab is active for all types of input files.
    - General Signal Processing - Surface Tab
      The Surface tab is active when an H3D file or CASE file contain time domain flow pressure results and are are loaded into the utility.
  - Mount Optimization
    Predicts powertrain rigid body mode frequencies and kinetic energy distribution, which play a critical role in optimizing the mount stiffness and layout configuration, by decoupling powertrain rigid body modes and reducing vibration transmission.
  - Optimization, RBDO
    Optimizes sensitive parameters for multiple sample analysis results using the RBDO approach.
  - Multiple Sample Analysis
    Post-process results from a Multiple Sample Analysis, including plotting a spread of responses (+/-95% and mean).
  - Display Options
    Customize plots using the following options
  - Filter Contributors
    Filters contributors to a smaller set of data.
High Frequency NVH

View All Altair Simulation Help

2022

Home
Full Vehicle NVH
Post-Processing and Diagnostics
Define radiation conditions and create emissivity models.
Flow Induced Noise/General Signal Processing
The General Signal Processing utility processes the time domain pressure results from CFD simulations and visualizes the results in both the time and frequency domain.
General Signal Processing - Load Tab
Use the to Load tab to load the UltraFluidX transient results file. Input file formats *.csv , *.h3d, and *.case are supported.

What's New
Get Started
Tutorials
Full Vehicle NVH
High Frequency NVH

General Signal Processing - Load Tab

Use the to Load tab to load the UltraFluidX transient results file. Input file formats *.csv , *.h3d, and *.case are supported.

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