Thesis worker - 30 hp - Robust Fault Detection for Vibration Monitoring of Rotating Test Objects

Thesis Project: Robust Fault Detection for Vibration Monitoring of Rotating Test Objects 

At TRATON AB in Södertälje, within the Powertrain Testing division, a wide range of powertrains and drivetrain components are tested and developed. These include conventional rear axles, gearboxes, electric machines and electric drivetrains. Vibration measurements are an important tool for detecting deviations and potential faults during testing. However, vibration levels can vary with the test object, speed, load and test method, making it difficult to use the same alarm limits in every situation. 

In this thesis project, you will investigate how vibration data can be used to detect faults robustly and reliably. The aim is to develop a strategy for fault detection and alarm limits that works across different types of test objects and test conditions. The project combines theoretical research with practical testing and offers the opportunity to contribute to the development of future vibration monitoring methods for our test rigs. 

In the thesis project, you will 

• Conduct a literature review on vibration analysis, relevant analysis methods and condition-based fault detection. 

• Analyse historical measurement data and investigate how vibration levels are affected by factors such as speed, load and test conditions. 

• Plan and conduct tests using a method selected in consultation with your supervisor. 

• Evaluate current measurement and alarm methods, identifying their strengths and limitations. 

• Propose and evaluate improvements, such as tailored alarm limits or methods for distinguishing actual deviations from normal variation and measurement disturbances.

This project is suited to someone interested in vibration analysis, signal processing and condition monitoring, and who wants to combine measurement data analysis with practical work in an advanced testing environment.

Contact persons and supervisors 

Supervisor - Ossian Brus [email protected]

Manager - Robert Broman [email protected]

Application:

Your application must include a CV, personal letter and transcript of grades

A background check might be conducted for this position. We are conducting interviews continuously and may close the recruitment earlier than the date specified.