Design evaluation of a French refrigerator drawer system subjected to repeated food storage loads

Woo, Seongwoo; Ryu, Dongsu; Pecht, Michael

doi:10.1016/j.engfailanal.2009.03.005

Cited by 15 publications

(4 citation statements)

References 7 publications

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“…In order to comprehensively study the storage environmental effect on a NOR gate component, some new components were selected and an accelerated degradation test was utilized to accelerate the storage degradation process. The accelerated test is an important method to study storage reliability of electronic components, which was used for the research about storage reliability of the antifuse FPGA [5] and the refrigerator drawer system [6]. After the accelerated storage degradation test, several mechanical tests were conducted to evaluate the condition of the components.…”

Section: Introductionmentioning

confidence: 99%

Failure analysis of electronic components after long-term storage

Yong

2015

Engineering Failure Analysis

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Section: Introductionmentioning

confidence: 99%

Failure analysis of electronic components after long-term storage

Yong

2015

Engineering Failure Analysis

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“…For a 60% confidence level, the first term in eqn (14) can be approximated to (r + 1) [10]. By Taylor expansion, if the cumulative failure rate, x, is below 20 percent, the second term ln approaches to x., it can be represented as: …”

Section: Load Analysismentioning

confidence: 99%

Improving Reliability of Product Subjected to Random Vibration During Transportation

Woo¹

2017

WIT Transactions on the Built Environment

Self Cite

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To enhance the reliability of newly designed product like refrigerator subjected to random vibrations in transportation, new reliability methodology, including load analysis and parametric Accelerated Life Testing (ALT), was presented. As a case study, refrigerator subjected to random vibration during transportation is studied to improve reliability. In first parametric ALT, the reliability of refrigerators was targeted to have B1 life in transportation. We found to be the damage of the compressor rubber mounts and the fractured connecting tubes between the compressor and condenser. The shape of failures in 1 st ALT and the failed samples in field are the same. The failures of connecting tube were caused by the design flaws of the compressor rubber mount. To correct these problems, the rubber mounts and the connecting tube were reshaped to protect the refrigerator from random vibration. Because there were no problems in 2 nd ALT, we knew that parametric ALTs were effective and the refrigerator was guaranteed to have B1 life in transportation.

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“…It will benefit to confirm the final design of new product. Another case study of this new reliability testing methodology [10][11][12][13][14][15][16][17][18][19][20][21][22][23] will be suggested.…”

Section: Introductionmentioning

confidence: 99%

Reliability Design of Mechanical System‐Like Water‐Dispensing System in Refrigerator Subjected to Repetitive Impact Loading

Woo¹

2017

System Reliability

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Based on field data and parametric accelerated life tests (ALT), the mechanical systemlike water-dispensing system in a bottom-mounted freezer (BMF) was redesigned to find out the missing design parameter in the design phase. To carry out parametric ALTs using a force/momentum balance, the simple mechanical loads of the water-dispensing system were analyzed. At the first ALT, the hinge and front corner of dispenser lever were fractured. The failure shapes found experimentally were similar to those of the failed samples in field. Dispenser lever in water-dispensing system was modified as having its fillets and ribs. At the second ALT, the modified dispenser lever also was fractured because of not having enough strength for impact loading at its front corner. The missing design parameters of the dispenser lever were not enough to have corner fillet rounding and rib thickness. After parameter ALTs with corrective action plans, reliability of the newly designed water-dispensing system is assured to have B1 life 10 years with a failure rate of 0.1%/year.

show abstract

Design evaluation of a French refrigerator drawer system subjected to repeated food storage loads

Cited by 15 publications

References 7 publications

Failure analysis of electronic components after long-term storage

Failure analysis of electronic components after long-term storage

Improving Reliability of Product Subjected to Random Vibration During Transportation

Reliability Design of Mechanical System‐Like Water‐Dispensing System in Refrigerator Subjected to Repetitive Impact Loading

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