Journal of Failure Analysis and Prevention

, Volume 13, Issue 2, pp 227–240 | Cite as

Multiple Sinusoidal Vibration Test Development for Engine Mounted Components

Technical Article---Peer-Reviewed

Abstract

Durability testing is required before vehicle launching to prevent failure before designed life. Limited publications were found on specifying vibration testing to validate durability and reliability of engine mounted components. These published test methods did not consider engine firing order effects and oversimplified the vibration profiles. In this paper, a new ordered multiple sinusoidal vibration test method is proposed to improve the existing procedures. The test method is designed to fulfill an infinite life durability requirement for engine mounted components subjected to a four-stroke internal combustion engine vibration. An innovative test development procedure, based on engine vibration field data, is illustrated in details in this paper. The ordered multiple sinusoidal vibration test method covers the choice of sweep type, sweep time, frequency range, vibration magnitude and profile, and test duration. Instead of obtaining the vibration magnitude directly from order analysis results, vibration magnitudes are determined by fully analyzing the vibration data in both time domain and frequency domain. Test profiles designed by enveloping method are proposed for a better represent of the engine excitations.

Keywords

Durability analysis Failure prevention Sinusoidal vibration test Engine excitation Development 

Notes

Acknowledgments

The authors acknowledge the product and technical support from HBM-nCode’s. L. Wang acknowledges the scholarship from China Scholarship Council.

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Copyright information

© ASM International 2013

Authors and Affiliations

  • Liang Wang
    • 1
  • Yung-Li Lee
    • 2
  • Robert Burger
    • 2
  • Keyu Li
    • 1
  1. 1.Department of Mechanical EngineeringOakland UniversityRochesterUSA
  2. 2.Stress Laboratory & Durability DevelopmentChrysler Group LLCAuburn HillsUSA

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