时间 | 温 | 度 | 增 | 量 | ( | D | t | ) | ℃ |
H | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 |
10 | 0.0124 | 0.0677 | 0.0991 | 0.1240 | 0.1452 | 0.1639 | 0.1809 | 0.1964 | 0.2108 |
20 | 0.0247 | 0.1808 | 0.1885 | 0.2326 | 0.2693 | 0.3010 | 0.3290 | 0.3542 | 0.3772 |
30 | 0.0368 | 0.1896 | 0.2689 | 0.3278 | 0.3754 | 0.4256 | 0.4504 | 0.4810 | 0.5084 |
40 | 0.0488 | 0.2445 | 0.3414 | 0.4112 | 0.4661 | 0.5114 | 0.5498 | 0.5830 | 0.6121 |
50 | 0.0606 | 0.2956 | 0.4067 | 0.4842 | 0.5436 | 0.5915 | 0.6312 | 0.6649 | 0.6938 |
60 | 0.0723 | 0.3433 | 0.4655 | 0.5481 | 0.6099 | 0.6584 | 0.6979 | 0.7807 | 0.7884 |
70 | 0.0839 | 0.3877 | 0.5185 | 0.6042 | 0.6665 | 0.7144 | 0.7525 | 0.7836 | 0.8093 |
80 | 0.0953 | 0.4292 | 0.5663 | 0.6533 | 0.7149 | 0.7612 | 0.7973 | 0.8261 | 0.8495 |
90 | 0.1065 | 0.4678 | 0.6093 | 0.6963 | 0.7563 | 0.8004 | 0.8339 | 0.8602 | 0.8812 |
100 | 0.1176 | 0.5038 | 0.6480 | 0.7339 | 0.7917 | 0.8331 | 0.8640 | 0.8877 | 0.9063 |
110 | 0.1286 | 0.5374 | 0.6829 | 0.7669 | 0.8219 | 0.8605 | 0.8880 | 0.9097 | 0.9260 |
120 | 0.1394 | 0.5687 | 0.7144 | 0.7968 | 0.8478 | 0.8833 | 0.9087 | 0.9275 | 0.9416 |
130 | 0.1501 | 0.5979 | 0.7427 | 0.8211 | 0.8699 | 0.9025 | 0.9252 | 0.9417 | 0.9539 |
140 | 0.1607 | 0.6251 | 0.7687 | 0.8433 | 0.8888 | 0.9184 | 0.9388 | 0.9532 | 0.9639 |
150 | 0.1711 | 0.6505 | 0.7912 | 0.8628 | 0.9049 | 0.9318 | 0.9498 | 0.9624 | 0.9713 |
160 | 0.1814 | 0.6742 | 0.8119 | 0.8798 | 0.9187 | 0.9430 | 0.9589 | 0.9697 | 0.9774 |
170 | 0.1916 | 0.6962 | 0.8305 | 0.8947 | 0.9325 | 0.9523 | 0.9663 | 0.9757 | 0.9821 |
180 | 0.2017 | 0.7168 | 0.8473 | 0.9077 | 0.9406 | 0.9602 | 0.9724 | 0.9805 | 0.9859 |
190 | 0.2116 | 0.7360 | 0.8625 | 0.9192 | 0.9492 | 0.9667 | 0.9774 | 0.9843 | 0.9889 |
200 | 0.2214 | 0.7538 | 0.8761 | 0.9292 | 0.9566 | 0.9721 | 0.9815 | 0.9874 | 0.9912 |
λD | 0.0013 | 0.0070 | 0.0104 | 0.0132 | 0.0157 | 0.0179 | 0.0199 | 0.0219 | 0.0237 |
次 | 速率 | 温 度 范 围 ℃ | ||||||||||
数 | ℃/m | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | ||
2 | 5 | 0.1683 | 0.2349 | 0.2886 | 0.3324 | 0.3697 | 0.4023 | 0.4312 | 0.4572 | 0.4809 | ||
2 | 10 | 0.2097 | 0.4031 | 0.4812 | 0.5410 | 0.5891 | 0.6290 | 0.6629 | 0.6920 | 0.7173 | ||
2 | 15 | 0.3911 | 0.5254 | 0.6124 | 0.6752 | 0.7232 | 0.7612 | 0.7920 | 0.8175 | 0.8388 | ||
2 | 20 | 0.4707 | 0.6155 | 0.7034 | 0.7636 | 0.8075 | 0.8407 | 0.8665 | 0.8871 | 0.9037 | ||
4 | 5 | 0.2998 | 0.4147 | 0.4939 | 0.5543 | 0.6027 | 0.6427 | 0.6765 | 0.7054 | 0.7305 | ||
4 | 10 | 0.4969 | 0.6437 | 0.7308 | 0.7893 | 0.8312 | 0.8624 | 0.8863 | 0.9051 | 0.9201 | ||
4 | 15 | 0.6292 | 0.7748 | 0.8498 | 0.8945 | 0.9234 | 0.9430 | 0.9567 | 0.9667 | 0.9740 | ||
4 | 20 | 0.7198 | 0.8522 | 0.9120 | 0.9441 | 0.9629 | 0.9746 | 0.9822 | 0.9873 | 0.9907 | ||
6 | 5 | 0.4141 | 0.5222 | 0.6400 | 0.7025 | 0.7496 | 0.7884 | 0.8160 | 0.8401 | 0.8601 | ||
6 | 10 | 0.6431 | 0.7873 | 0.8603 | 0.9033 | 0.9306 | 0.9409 | 0.9617 | 0.9708 | 0.9774 | ||
6 | 15 | 0.7742 | 0.8931 | 0.9418 | 0.9657 | 0.9789 | 0.9864 | 0.9910 | 0.9939 | 0.9958 | ||
6 | 20 | 0.8517 | 0.9432 | 0.9739 | 0.9868 | 0.9929 | 0.9960 | 0.9976 | 0.9986 | 0.9991 | ||
8 | 5 | 0.5095 | 0.6574 | 0.7439 | 0.8014 | 0.8422 | 0.8723 | 0.8953 | 0.9132 | 0.9274 | ||
8 | 10 | 0.7469 | 0.8731 | 0.9275 | 0.9556 | 0.9715 | 0.9811 | 0.9871 | 0.9910 | 0.9936 | ||
8 | 15 | 0.8625 | 0.9493 | 0.9774 | 0.9889 | 0.9941 | 0.9967 | 0.9981 | 0.9989 | 0.9993 | ||
8 | 20 | 0.9215 | 0.9781 | 0.9923 | 0.9969 | 0.9986 | 0.9997 | 0.9997 | 0.9998 | 0.9999 | ||
10 | 5 | 0.5898 | 0.7379 | 0.8178 | 0.8674 | 0.9005 | 0.9273 | 0.9405 | 0.9929 | 0.9623 | ||
10 | 10 | 0.8204 | 0.9242 | 0.9624 | 0.9796 | 0.9883 | 0.9930 | 0.9956 | 0.9912 | 0.9982 | ||
10 | 15 | 0.9163 | 0.9759 | 0.9913 | 0.9964 | 0.9984 | 0.9992 | 0.9996 | 0.9998 | 0.9999 | ||
10 | 20 | 0.9585 | 0.9916 | 0.9977 | 0.9993 | 0.9997 | 0.9999 | 0.9999 | 0.9999 | 0.9999 | ||
12 | 5 | 0.6568 | 0.7994 | 0.8704 | 0.9115 | 0.9373 | 0.9544 | 0.9661 | 0.9744 | 0.9804 | ||
12 | 10 | 0.8726 | 0.9548 | 0.9805 | 0.9906 | 0.9852 | 0.9974 | 0.9985 | 0.9991 | 0.9995 | ||
12 | 15 | 0.9490 | 0.9886 | 0.9966 | 0.9988 | 0.9996 | 0.9998 | 0.9999 | 0.9999 | 0.9999 | ||
12 | 20 | 0.9780 | 0.9968 | 0.9993 | 0.9998 | 0.9999 | 0.9999 | 0.9999 | 0.9999 | 0.9999 |
速 率 | 温 度 循 环 范 围 ℃ | |||||||||||
℃/min | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 | |||
5 | 0.0891 | 0.1339 | 0.1703 | 0.2020 | 0.2308 | 0.2573 | 0.2821 | 0.3055 | 0.3278 | |||
10 | 0.1717 | 0.2580 | 0.3281 | 0.3893 | 0.4447 | 0.4958 | 0.5436 | 0.5888 | 0.6317 | |||
15 | 0.2480 | 0.3726 | 0.4739 | 0.5623 | 0.6423 | 0.7161 | 0.7852 | 0.8504 | 0.9125 | |||
20 | 0.3181 | 0.4779 | 0.6077 | 0.7212 | 0.8237 | 0.9184 | 1.0070 | 1.0906 | 1.7702 |
时 间 | 加 速 度 量 值 (g) | |||||||||||||||
Min | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | ||
5 | .0020 | .0036 | .0051 | .0066 | .0080 | .0099 | .0107 | .0120 | .0132 | .0145 | .0157 | .0169 | .0181 | .0193 | ||
10 | .0040 | .0072 | .0103 | .0131 | .0519 | .0186 | .0212 | .0238 | .0263 | .0287 | .0312 | .0355 | .0359 | .0382 | ||
15 | .0060 | .0108 | .0154 | .0196 | .0289 | .0278 | .0316 | .0354 | .0391 | .0428 | .0464 | .0499 | .0534 | .0568 | ||
20 | .0080 | .0144 | .0204 | .0261 | .0316 | .0368 | .0420 | .0470 | .0519 | .0566 | .0614 | .0660 | .0705 | .0750 | ||
25 | .0099 | .0180 | .0255 | .0325 | .0393 | .0458 | .0522 | .0584 | .0644 | .0703 | .0761 | .0818 | .0874 | .0929 | ||
30 | .0119 | .0216 | .0305 | .0389 | .0470 | .0547 | .0623 | .0696 | .0768 | .0838 | .0906 | .0937 | .1039 | .1101 | ||
35 | .0139 | .0251 | .0355 | .0452 | .0546 | .0636 | .0723 | .0807 | .0890 | .0970 | .1049 | .1122 | .1201 | .1275 | ||
40 | .0159 | .0287 | .0404 | .0515 | .0621 | .0723 | .0822 | .0917 | .1010 | .1101 | .1189 | .1276 | .1361 | .1444 | ||
45 | .0178 | .0322 | .0454 | .0578 | .0696 | .0810 | .0919 | .1026 | .1129 | .1230 | .1328 | .1424 | .1517 | .1609 | ||
50 | .0198 | .0357 | .0503 | .0640 | .0770 | .0895 | .1016 | .1133 | .1246 | .1357 | .1464 | .1569 | .1671 | .1771 | ||
55 | .0217 | .0392 | .0552 | .0701 | .0844 | .0980 | .1112 | .1239 | .1362 | .1482 | .1598 | .1711 | .1822 | .1980 | ||
60 | .0237 | .0427 | .0600 | .0763 | .0917 | .1065 | .1207 | .1344 | .1476 | .1605 | .1730 | .1852 | .1970 | .2089 | ||
λD | .0240 | .0436 | .0619 | .0793 | .0962 | .1126 | .1286 | .1443 | .1597 | .1749 | .1899 | .2048 | .2194 | .2339 |
时间 | 加 速 度 均 方 根 值 (g) | |||||||||||||||
min | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.5 | 7.0 | ||
5 | .007 | .023 | .045 | .012 | .104 | .140 | .178 | .218 | .260 | .303 | .346 | .389 | .431 | .478 | ||
10 | .014 | .045 | .088 | .140 | .198 | .260 | .324 | .389 | .452 | .514 | .572 | .627 | .677 | .723 | ||
15 | .021 | .067 | .129 | .202 | .282 | .363 | .444 | .522 | .595 | .661 | .720 | .772 | .816 | .854 | ||
20 | .028 | .088 | .168 | .260 | .356 | .452 | .543 | .626 | .700 | .764 | .817 | .861 | .896 | .923 | ||
25 | .035 | .109 | .206 | .314 | .424 | .529 | .625 | .708 | .778 | .835 | .880 | .915 | .941 | .959 | ||
30 | .041 | .129 | .241 | .363 | .484 | .595 | .691 | .772 | .836 | .885 | .922 | .948 | .966 | .979 | ||
35 | .048 | .149 | .275 | .409 | .538 | .651 | .746 | .882 | .878 | .920 | .949 | .968 | .981 | .989 | ||
40 | .055 | .168 | .308 | .452 | .586 | .700 | .791 | .860 | .910 | .944 | .966 | .981 | .989 | .994 | ||
45 | .061 | .187 | .339 | .492 | .629 | .742 | .829 | .891 | .933 | .961 | .978 | .988 | .994 | .997 | ||
50 | .068 | .205 | .369 | .529 | .668 | .778 | .859 | .915 | .951 | .973 | .986 | .993 | .996 | .998 | ||
55 | .074 | .224 | .397 | .563 | .702 | .809 | .884 | .938 | .964 | .981 | .991 | .996 | .998 | .999 | ||
60 | .081 | .241 | .424 | .595 | .734 | .836 | .905 | .948 | .973 | .987 | .994 | .997 | .999 | 1.00 | ||
λD | .084 | .276 | .552 | .903 | 1.32 | 1.80 | 2.35 | 2.95 | 3.61 | 4.32 | 5.09 | 5.90 | 6.77 | 7.69 |
项 目 | 恒温45℃ | 恒温105℃ | 交变80℃ 5℃/min |
交变80℃ 20℃/min |
扫频 7g 5min |
随机 rms7g 5/min |
SS | 0.8761 | 0.9912 | 中等 | 高 | 0.0193 | 0.478 |
λD(1/h) | 0.0104 | 0.0237 | 0.2020 | 0.7212 | 0.2339 | 70.692 |
H/次故障 | 100 | 42 | 5 | 2 | 40.3 | 0.13(70.8min) |
影响寿命 | 较大 | 较大 | 基本不影响 | 不影响 | 不影响 | 不影响 |
试验设备造价 | 低 | 低 | 较低 | 较高 | 低 | 较高 |
温度循环应力 | 振动应力 | 温度加振动应力 |
元器件参数漂移 电路板开路、短路 |
粒子污染 | 焊接缺陷 |
压紧导线磨损 | 硬件松脱 | |
晶体缺陷 | ||
元器件安装不当 | 混装 | 元器件缺陷 |
错用元器件 | 邻近板摩擦 | 紧固件问题 |
密封失效 | 相邻元器件短路 | 元器件破损 |
导线松脱 | 电路板蚀刻缺陷 | |
导线束端头缺陷 | 元器件粘接不良 | |
夹接不当 | 机械性缺陷 | |
大质量元器件紧固不当 |
硬件类型 | 筛选组装等级 | 温度筛选故障% | 振动筛选故障% |
飞机发电机 | 单元 | 55 | 45 |
计算机电源 | 单元 | 88 | 12 |
航空设备计算机 | 单元 | 87 | 13 |
舰载计算机 | 单元 | 93 | 7 |
接收处理机 | 单元 | 71 | 29 |
惯性导航装置 | 单元 | 77 | 23 |
接收系统 | 单元 | 87 | 13 |
机载计算机 | 模块 | 87 | 13 |
控制指示器 | 单元 | 78 | 27 |
接收、发射机 | 模块 | 74 | 26 |
平均 | 综合 | 79 | 21 |
组装等级 | 测试方式 | 检测效率 |
组件 | 生产线工序间合格测试 | 0.85 |
组件 | 生产线电路测试 | 0.90 |
组件 | 高性能自动测试 | 0.95 |
单元 | 性能合格鉴定测试 | 0.90 |
单元 | 工厂检测测试 | 0.95 |
单元 | 最终验收测试 | 0.98 |
系统 | 在线性能监测测试 | 0.90 |
系统 | 工厂检测测试 | 0.95 |
系统 | 定购方最终验收测试 | 0.99 |
电 路 类 型 |
负载板短路测试 (LBS) |
电路分析仪 (ICT) |
电路测试仪 (ICT) |
功能板测试仪 (FBT) |
数字式 | 45~65 | 50~75 | 85~94 | 90~98 |
模拟式 | 35~55 | 70~2 | 90~96 | 80~90 |
混合式 | 40~0 | 60~0 | 87~94 | 83~95 |
故障率λ0 | 0.1 | 0.01 | 0.005 | 0.002 | 0.001 | 0.0005 | 0.0002 | 0.0001 | 0.00001 |
MTBF | 10 | 100 | 200 | 500 | 1000 | 2000 | 5000 | 10000 | 100000 |
DR | 10 | 1 | 0.5 | 0.2 | 0.1 | 0.05 | 0.02 | 0.01 | 0.001 |
故 障 (失 效) 率 比 值 λD/λ0 | |||||||||||
λDT | 0.10 | 0.20 | 0.30 | 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | |
0.1 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
0.2 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
0.3 | 1.00 | 0.10 | 0.02 | 0.01 | 0.01 | 0.01 | 0.00 | 0.00 | 0.00 | 0.00 | |
0.4 | 1.00 | 0.54 | 0.14 | 0.07 | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | 0.02 | |
0.5 | 1.00 | 1.00 | 0.38 | 0.20 | 0.13 | 0.10 | 0.09 | 0.08 | 0.07 | 0.06 | |
0.6 | 1.00 | 1.00 | 0.69 | 0.38 | 0.26 | 0.21 | 0.17 | 0.15 | 0.14 | 0.13 | |
0.7 | 1.00 | 1.00 | 1.00 | 0.58 | 0.41 | 0.33 | 0.28 | 0.24 | 0.22 | 0.21 | |
0.8 | 1.00 | 1.00 | 1.00 | 0.78 | 0.56 | 0.45 | 0.39 | 0.35 | 0.32 | 0.29 | |
0.9 | 1.00 | 1.00 | 1.00 | 0.96 | 0.71 | 0.58 | 0.50 | 0.45 | 0.41 | 0.38 | |
1.0 | 1.00 | 1.00 | 1.00 | 1.00 | 0.84 | 0.69 | 0.60 | 0.54 | 0.50 | 0.47 | |
1.1 | 1.00 | 1.00 | 1.00 | 1.00 | 0.95 | 0.79 | 0.69 | 0.63 | 0.58 | 0.55 | |
1.2 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.88 | 0.78 | 0.71 | 0.66 | 0.62 | |
1.3 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.95 | 0.85 | 0.78 | 0.73 | 0.69 | |
1.4 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.91 | 0.83 | 0.78 | 0.74 | |
1.5 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.96 | 0.88 | 0.83 | 0.79 | |
1.6 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.93 | 0.88 | 0.84 | |
1.7 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.96 | 0.91 | 0.87 | |
1.8 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.99 | 0.94 | 0.91 | |
1.9 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.97 | 0.93 | |
2.0 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.99 | 0.95 |
分组件号 | 设计工作高温 | 低温(℃) | 设计贮存高温 | 低温(℃) |
1 | 80 | -40 | 100 | -55 |
2 | 90 | -45 | 100 | -50 |
3 | 100 | -50 | 120 | -40 |
4 | 110 | -30 | 150 | -55 |
5 | 60 | -50 | 80 | -55 |
加速度均方根值grms | 功率谱密度g2/Hz | 等效时间min |
6.06 | 0.04 | 20 |
5.2 | 0.03 | 47 |
4.24 | 0.02 | 160 |
3.0 | 0.01 | 1280 |
频率范围Hz | 分析带宽Hz | 容差规定dB | 容差放宽备注 |
20~200 | 25 | ±3 | |
200~500 | 50 | ±3 | |
500~1000 | 50 | ±3 | -6dB,累计带宽100Hz之内 |
1000~2000 | 100 | ±6 | -9dB,累计带宽300Hz之内 |
序号 | 应力条件 | 故障现象及发生次数 | 原因分析 | 消除措施 |
1 | 随机振动 | 机箱盖板螺钉脱落2次 | 装配缺陷 | 加强检验 |
2 | 随机振动 | 电容器C39脱落2次 | 电路板孔距不匹配 | 改进设计 |
3 | 随机振动 | A7单元一联线碰地1次 | 装配工艺缺陷 | 加强检验 |
3 | 随机振动 | A7单元地线断1次 | 装配工艺缺陷 | 加强检验 |
4 | 随机振动 | A6单元控制线断1次 | 装配工艺缺陷 | 加强检验 |
5 | 随机振动 | 晶体滤波器损坏4次 | 器件工艺缺陷 | 加捆绑措施 |
6 | 随机振动 | 可充电电池G脚断1次 | 装配工艺缺陷 | 加捆扎措施 |
7 | 随机振动 | 机箱后板保险丝脱落1次 | 装配工艺缺陷 | 加强检验 |
8 | 温度循环 | 功放管损坏1次 | 设计缺陷 | 加散热设计 |
9 | 温度循环 | 集成电路损坏2次 | 设计缺陷 | 加散热设计 |
10 | 温度循环 | 集成电路接触不良1次 | 装配工艺缺陷 | 加强检验 |
11 | 温度循环 | A2单元输出下降1次 | 晶体3极管失效 | 更换元件 |
12 | 随机振动 | A7单元电感脱落3次 | 装配工艺缺陷 | 增加胶黏工艺次数 |
13 | 温度循环 | A1单元电感脱落1次 | 装配工艺缺陷 | 增加胶黏工艺次数 |
13 | 温度循环 | 天调单元电感脱落1次 | 装配工艺缺陷 | 增加胶黏工艺次数 |