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1、 DYNAEON INDUSTRIAL CO., LTD. TECHNOLOGY(HUIZHOU) CO.,LTD. 文件名稱 可靠信賴度測試計劃 PLAN OF MEAN TIME BETWEEN FAILURE 文件編號 DM-Q-Z-006 版次 3.0 頁數 1/3 一. 定義說明: 1. 失效定義:壽命實驗后(Definition of Failure: After completion life testing) 2. 期望壽命:是依據市場需求所 DESIGNED-IN,為對客戶保証之壽命長度.此一 數值乃綜合:(Expectation Life: It is designed-i
2、n according to market requirements to ensure customers the life. It consists the following.) 2.1 軸承的 M.T.B.F 值.( MTBF value of bearing) 2.2 依 MIL-STD-217D 及 POISSON 表簡化所測得之實際試驗值定義的最小壽命 值.(Minimum life measured according to the actual test reading under MIL-STD-217D and POISSON table.) 2.3 目前本公司所生產的風
3、扇是依據軸承系統區分的,在 25周圍溫度及 65%相 對濕度下,其期望壽命分別訂定如下:(Now the fans made in our company are devised bearing system ,under 25 circumference temperature and 65% relative humidity ,we define expected natural life as follow) 2.3.1 雙滾珠軸承風扇:最少 50,000 小時.(Two Ball Bearing Type: 50K hours minimum) 2.3.2 液態軸承風扇:最少 35,
4、000 小時.(Liquid State Bearing Type: 35K hours minimum) 2.3.3 含油軸承風扇:最少 20,000 小時.( Sleeve Bearing Type: 20K hours minimum) 2.4 關於在不同的周圍溫度下的壽命長度,則請參考下表所列:(Following is table related to the separate expectation life measured different ambient temperature) 單位:小時(最少) UNIT: HOUR (MIN) Ambient Temperature
5、Type 25 35 45 55 65 雙滾珠軸承風扇 Two Ball Bearing Fan 50k 50 k 50 k 28 k 15 k 液態軸承風扇 Liquid State Bearing Fan 35 k 35 k 31 k 20 k 14 k 含油軸承風扇 Sleeve Bearing Fan 20 k 20 k 15 k 12 k 10 k 二. 內容(Content) 1.風扇使用壽命 (The using life of Fan.) 本公司之可靠度鑒定方法是依照MIL-STD-217D及POISSON表簡化而來之計算 方法( Mean time between failu
6、re test method calculation formula is simplified and in accordance with MIL-STD-217D and POISSON table) 1.1 計算公式:實際測試時間= MTBF 目標值R 樣品數量加速倍率(FCC) Calculation Formula: Actual Test Time = MTBF TARGET VALUE R Sample Quality Temp Rise Ratio (FCC) 1.2 加速倍率:FCC=2(加溫溫度額定溫度)/10 Temperature Rise Ratio :FCC=2(
7、Temperature Rise Rated Temperature)/10 1.3額定溫度:25 (Rated Temperature:25) DYNAEON INDUSTRIAL CO., LTD. TECHNOLOGY(HUIZHOU) CO.,LTD. 文件名稱 可靠信賴度測試計劃 PLAN OF MEAN TIME BETWEEN FAILURE 文件編號 DM-Q-Z-006 版次 3.0 頁數 2/3 1.4 信心水準準確性(R)設定為:90%(2.3026) Confidence Level (R): Rated 90%(2.3026) Refer to POISSON Tab
8、le POISSON 失效個數 FAILURE QUANTITY Confidence level( R ) 0 1 2 3 4 5 6 7 8 95% 2.9957 4.7439 6.2956 7.7537 9.1535 10.5130 11.8424 13.1481 14.4347 90% 2.3026 3.8897 5.3223 6.6808 7.9936 9.2742 10.5321 11.7709 12.9947 85% 1.8971 3.3724 4.7231 6.0135 7.2670 8.4947 9.7031 10.8956 12.0777 1.5 不良率:設定在 1000P
9、PM 以下.( Failure Ratio :Rated under 1000PPM.) 1.6 測試溫度:分為五組,即 25/35/45/55/65(操作溫度為 0+65) (Test Temperature :5Degrees, 25/35/45/55/65(Operation Temp 0+65) 1.7 環境濕度:維持在 65%(RH)20%之間(Environment Humidity :Maintain 65%(RH)20%) 1.8 大氣壓力:不考慮.( Atmosphere Pressure : Not considerer.) 1.9 開/關周期:開/關各四小時作循環. (N
10、/OFF cycle : Four hours for each ON/OFF on rotating basis.) 1.10樣品數量：各機型每月產量1/5000（新開發機型第一次測試均設定為 50pcs） (Sample quantity: Month production of each model1/5000(50pcs for first test of new developed model) 1.11 測試時機:每季至少一次;主要零件更換時;主要設計變更時;客戶要 求時(Test to test: a. At least every quarter b. Major part E
11、CN c. Major design change d .Customer，s request.) 1.12 失效個數：試驗過程中若有異常發生時，必須即刻修復置回實驗室中繼續實 驗，依失效個數重新由 POISSON 表中再查得 R 值,并再計算測試 時間而將測試時間延長至通過 MTBF 測試. Failure Unit (S): In case there is any failure the duration of test, the failure unit(s) need to be repaired right away and continue test. Check R value
12、 on the POISSON table conform to the failure unit(s). Recalculate and extend the test time till the unit pass MTBF test method. 三 附件: 1).MODEL : a. TWO BALL SERIES (雙滾珠軸承風扇) b. LIQUID STATE SERIES (液態軸承風扇) c. SLEEVE SERIES (含油軸承風扇) 2).QTY:100,000PCS/Month (100KPCS/月) 3).Test Timing: a)Every Season(每
13、季度); b)As Customer Request(客戶要求); c)Main Parts Change(主要零部件設變) 4).The M.T.B.F is : a. TWO BALL SERIES 50,000 Hours b. LIQUID STATE SERIES 35,000 Hours c. SLEEVE SERIES 20,000 Hours 5).Sample quantity:40PCS(200,000PCS*1/5000=40PCS)(樣本數:40PCS) 6).Test Temperature:25/35/45/55/65.Total:4 sets each sets:
14、40PCS (測試溫度: 25/35/45/55/65, 總計:4 套, 40PCS/套) DYNAEON INDUSTRIAL CO., LTD. TECHNOLOGY(HUIZHOU) CO.,LTD. 文件名稱 可靠信賴度測試計劃 PLAN OF MEAN TIME BETWEEN FAILURE 文件編號 DM-Q-Z-006 版次 3.0 頁數 3/3 7). A. TWO BALL SERIES: First set(25):Test Time = 50000*2.3026/40*1 = 2878(h) Second set(35): Test Time= 50000*2.3026
15、/40*2 = 1439(h) Third set(45) : Test Time= 50000*2.3026/40*4 = 720(h) Fourth set(55) : Test Time= 50000*2.3026/40*8 = 360(h) Fifth set(65): Test Time = 50000*2.3026/40*16 = 180(h) B. LIQUID STATE SERIES : First set(25):Test Time=35000*2.3026/40*1=2015(h) Second set(35): Test Time=35000*2.3026/40*2=1
16、007(h) Third set(45) : Test Time=35000*2.3026/40*4=504(h) Fourth set(55) : Test Time=35000*2.3026/40*8=252(h) Fifth set(65): Test Time=35000*2.3026/40*16=126(h) C. SLEEVE SERIES: First set(25):Test Time=20000*2.3026/40*1=1151(h) Second set(35): Test Time=20000*2.3026/40*2=576(h) Third set(45) : Test Time=20000*2.3
