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dell名詞說明-資料下載頁

2025-01-06 07:45本頁面
  

【正文】 :The rate of verified defects for the modity line replacement rate based on EMR and Supplier test results for a specified date range (in DPPM). VLRR = Qty of Comm. Verified / (Qty of Comm. Shipped + Qty of Comm. Verified) x 1,000,000EMR :Electromechanical Repair DPPM:Defective Parts Per Million Page :23Dell 名詞說明 :IFIR :Initial Field Incident Rate 文 :初期市場批退率 :The percentage of modity replaced within the first 30 days from product invoice date (in DPPM).IFIR = Qty of Comm. Replaced / Qty of Comm. Shipped x 1,000,000 Page :24Dell 名詞說明 :MTBF :Mean Time Between Failures 文 :平均故障間隔時間 :異常工時 (故障 /修理時間 )關(guān)機(jī)t1 t2 t3 t4ta tb tc開機(jī)稼動時間T(負(fù)荷時間 )g MTBF: 可修理系統(tǒng)、機(jī)器、零件等兩個相鄰故障之間動作時 間之平均值 MTBF = 總稼動時間 / 總故障次數(shù) =(負(fù)荷時間-總故障時間 )/總故障次數(shù) →MTBF=(t1+t2+t3+t4)/4=[T(ta+tb+tc)]/4 Page :25演講完畢,謝謝觀看!
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