Browse Publications Technical Papers 2017-01-0380
2017-03-28

Considerations of Vibration Fatigue for Automotive Components 2017-01-0380

As an automobile is driven, its components and structures consistently experience the random excitations from road inputs and periodic vibration from engine firing. This could cause durability issues if the component structure isn’t fully validated. Vibration fatigue is a field of study regarding the assessment and improvement of a component’s or system’s robustness to vibration inputs.
This paper introduces aspects of vibration fatigue to help designers, release engineers, and test engineers better understand the requirements, testing methodologies available, and strategies for improving vibration fatigue performance for the design and validation testing of their products. Vibration characteristics such as typical vibration levels and frequency content for varied areas in the automotive environment are introduced. Methodologies available for conducting actual vibration testing are introduced with listed advantages and disadvantages. Finally, aspects that could improve a component’s or system’s vibration fatigue durability are recommended.

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