Altair Squeak and Rattle Director™

A Solution for Perceived Quality

Altair’s Squeak and Rattle Director (SnRD) enables expert and novice computer aided engineering (CAE) engineers to rapidly identify and eliminate squeak and rattle in products at an early design stage. By utilizing a novel set of tools and methods in a streamlined, semi-automated process that is fully integrated in the Altair HyperWorks™ environment, SnRD simplifies otherwise complex and time-consuming tasks.

Users can easily analyze risks, identify root-causes, find a solution through numerical optimization, and explore effects caused by climate and manufacturing variabilities. Together with the extensive squeak and rattle expertise offered by Altair’s product engineering team, SnRD is the market-leading solution for perceived quality.

Key Features

Guided, Automated Workflow

The intuitive, process-driven user experience automates repetitive pre and post-processing tasks which enables users to identify squeak and rattle risks quickly, driving faster and better design decisions.

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Upfront Squeak and Rattle Risk Results

Squeak and rattle risk zones are immediately identified, marked, and visible to user. No need to deep dive into post-processing.

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Ziegler Material Database

Predict the stick-slip phenomena for different materials with our seamless integration with Ziegler PEM Database

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Root Cause and Diagnosis

Easily identify the root cause of the issues and perform what-if studies through a sensitivity analysis without re-running the model.

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Solution Proposal Through Optimization

Automatically setup structural optimization to help eliminate squeak and rattle issues by offering new connection locations and/or needed reinforcements.

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Variabilities Study

Assess risk for squeak and rattle by taking into consideration manufacturing variabilities such as variations in thickness, connection stiffnesses, as well as product aging conditions.

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Customer Story

"The [SnRD] allows us to input different data, like design and manufacturing tolerances, in order to improve the output of our analysis and therefore have more valuable inputs to the project."

– Tiago Simao
Senior CAE Engineer - Chassis & NVH
FIAT Brazil

Customer Story

"Altair [SnRD] has helped the Cabin Development Department to focus on the risk areas and make improvements very early in the design process, enabling consciousness of these issues at an early stage without hardware, and creating value to the end customer."

Altair Squeak and Rattle Director™

A Solution for Perceived Quality

Quick Links

Why SnRD?

Improve Perceived Quality

Reduce Manufacturing Cost

Create Optimized Solutions

Key Features

Guided, Automated Workflow

Upfront Squeak and Rattle Risk Results

Ziegler Material Database

Root Cause and Diagnosis

Solution Proposal Through Optimization

Variabilities Study

Customer Story

"The [SnRD] allows us to input different data, like design and manufacturing tolerances, in order to improve the output of our analysis and therefore have more valuable inputs to the project."

– Tiago Simao
Senior CAE Engineer - Chassis & NVH
FIAT Brazil

Customer Story

"Altair [SnRD] has helped the Cabin Development Department to focus on the risk areas and make improvements very early in the design process, enabling consciousness of these issues at an early stage without hardware, and creating value to the end customer."

– Jan Söderlund
Head Instrument Panel, Driver Control Unit and Climate System
Scania CV AB

Customer Story

PSA Group Uses the Simulation of Squeak and Rattle Noise in its Vehicles

Learn More

Additional Resources

Request a Demo

Request a Quote

Already a Customer?

Altair Squeak and Rattle Director™

A Solution for Perceived Quality

Quick Links

Why SnRD?

Improve Perceived Quality

Reduce Manufacturing Cost

Create Optimized Solutions

Key Features

Guided, Automated Workflow

Upfront Squeak and Rattle Risk Results

Ziegler Material Database

Root Cause and Diagnosis

Solution Proposal Through Optimization

Variabilities Study

Customer Story

"The [SnRD] allows us to input different data, like design and manufacturing tolerances, in order to improve the output of our analysis and therefore have more valuable inputs to the project."

– Tiago SimaoSenior CAE Engineer - Chassis & NVH​FIAT Brazil

Customer Story

"Altair [SnRD] has helped the Cabin Development Department to focus on the risk areas and make improvements very early in the design process, enabling consciousness of these issues at an early stage without hardware, and creating value to the end customer."

– Jan SöderlundHead Instrument Panel, Driver Control Unit and Climate SystemScania CV AB​​

Customer Story

PSA Group Uses the Simulation of Squeak and Rattle Noise in its Vehicles

Learn More

Additional Resources

Request a Demo

Request a Quote

Already a Customer?

– Tiago Simao
Senior CAE Engineer - Chassis & NVH
FIAT Brazil

– Jan Söderlund
Head Instrument Panel, Driver Control Unit and Climate System
Scania CV AB