1.
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Under Prior Mean, enter the prior acceleration model parameter estimates that you obtained using the Fit Life by X platform with the hypothetical data. Round the values shown in the Estimates outline in Figure 21.3 to two decimal places:
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Enter 15.88 for Intercept.
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Enter -1.87 for Power (Torque).
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Enter 0.05 for scale.
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3.
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De-select the option Ignore prior variance. Generate the local design for the prior mean.
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4.
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In the row and column for Intercept, click on 0.10000 and type 0.04570.
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In the row and column for Torque, click on 0.10000 and type 0.00248.
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In the row and column for scale, click on 0.10000 and type 0.00013.
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Figure 21.5 Completed Prior Specification Outline
Click the Accelerated Life Test Plan red triangle and select ALT Optimality Criterion > Make Failure Probability Optimal.
5.
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In the Diagnostic Choices outline, enter 10,000 for both boxes for Time range of interest.
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6.
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In the Design Choices outline. Enter 5,000 for Length of test and 100 for Number of units under test.
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Figure 21.6 shows the completed Accelerated Life Test Plan outline.
Figure 21.6 Completed Design Details Window