Statistically Precise and Energy Efficient Accelerated Life Testing

The basic idea of accelerated life testing (ALT) is to expose test units of a product to harsher-than-normal operating conditions to expedite failures so that the failure time distribution of the product and the associated life-stress relationship can be determined in a short time period. However, ALT often consumes significant amounts of energy. To avoid waste of energy in a wide spectrum of product development processes, we explore a new experimental design methodology that improves the reliability estimation precision of an ALT experiment while minimizing the total energy consumption of the experiment. The resulting optimally designed ALT experiment depends not only on the reliability of the product to be tested but also on the characteristics of the test equipment and the capability of its controller. A numerical example is provided to demonstrate the use of the methodology in practice.

• Record URL:
  • https://doi.org/10.4271/2011-01-0797
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463979
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Liao, Haitao
  • Zhang , Dan
• Conference:
  • SAE 2011 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2011-4-12 to 2011-4-14
• Publication Date: 2011-4-12

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 992-998
• Serial:
  • SAE International Journal of Materials and Manufacturing
  • Volume: 4
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3979
  • EISSN: 1946-3987
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-05

Subject/Index Terms

• TRT Terms: Actuators; Durability; Life cycle analysis; Performance tests; Product development; Reliability; Sensors
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01632887
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2011-01-0797
• Files: TRIS, SAE
• Created Date: Apr 28 2017 10:39AM