Using the ALT Analytics Calculator

For any Data Set, you can access the built-in Analytics Calculator for computing additional ALT results, such as Bearing Life (BX) for calculations like B10 Life, Failure Rate, Mean Life, Reliability and Warranty Time.

To access the Analytics Calculator, click the Analytics button in the ALT toolbar.

The Analytics dialog appears.

Select the metric you wish to compute from the tabs on the left. Then enter the input parameters requested. Click Calculate to perform the ALT calculations. The results will appear in the Results group box.

The available metrics, the requested input parameters, and the resulting values are as follows:

• Acceleration Factor
  • Input Parameters: Use Stress, Accelerated Stress Value, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Bearing Life (BX)
  • Input Parameters: Bearing Life (BX) Percent, Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Failure Rate
  • Input Parameters: End Time, Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Fisher Matrix
  
  • Results: Parameter results based on the selected Distribution.
• Mean Life
  • Input Parameters: Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Parameter Bounds
  • Input Parameters: Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested) for parameters relevant to the Data Set Distribution
• Probability
  • Input Parameters:
    • Calculate: Probability of Failure - End Time, Use Stress, Confidence Type, Confidence Level (if requested)
    • Calculate: Conditional Probability of Failure - Start Time, Additional Time, Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Reliability
  • Input Parameters:
    • Calculate: Reliability - End Time, Use Stress, Confidence Type, Confidence Level (if requested)
    • Calculate: Conditional Reliability - Start Time, Additional Time, Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)
• Warranty Time
  • Input Parameters: Required Reliability, Use Stress, Confidence Type, Confidence Level (if requested)
  • Results: Lower Confidence Bound (if requested), resulting Value, Upper Confidence Bound (if requested)