Calculation Data for 299 Models
The following form is shown in the Calculation Data pane when a 299 model is either inherited or selected for Calculation model.
The following table describes the data fields in the Calculation Data pane for the 299 models. Field availability depends on selections made in various fields.
Field | Description |
|---|---|
Name | The name assigned to the assembly in the System Tree Items table. |
Calculation model | The reliability prediction standard or model to use to compute the predicted failure rate of the assembly. Choices include all licensed models. As described in Model Selection, a lower-level assembly inherits the model selected for its parent assembly, but when a 299 model is selected, you can specify an override model, which child items also inherit. |
Temperature | The operating temperature of the assembly in degrees C. For more information, see Operating Temperature. |
Temperature delta | A temperature adjustment value in degrees C. This value is added to the operating temperature to get the ambient/environment/case temperature, depending on which is appropriate for the model selected. While this field is unavailable for the top-most assembly (system), it is available for all lower-level assemblies. |
Environment, 299 | The surroundings in which the assembly operates. This field appears when a 299 model is selected. For choices, see 299 Environments. Environment selections are inherited and overridden in the same manner as model selections. For more information, see Model Selection. |
Environment, dormant | The surroundings in which the assembly is dormant. The choices for 299 models are Ground, Airborne, Naval, and Space. |
Duty cycle | The percentage of time that the assembly is in an active state. For more information, see Duty Cycle. |
 | The subsequent fields specify whether assembly results are calculated or specified. For more information, see Calculation Data for Specifying Whether Assembly Results are Calculated or Specified. |