Calculating Inventory Group Mass

The inventory group mass is calculated as the sum of the inventory component mass values of all the individual components in an inventory group. This value is populated in the Inventory Group Mass field in the Common section in the associated RBI 581 Consequence Evaluation record. If the component is not linked to an inventory group, then the value in the Inventory Group Mass field is the same as the value in the Inventory Component Mass field.

Note: The value in the Calculated Inventory field in a component datasheet is calculated only for RBI 580. It is not used in calculating inventory group mass.

For example, suppose you have created an inventory group, Group 1, and linked it to three components, Component 1, Component 2, and Component 3. The inventory component mass values for each of these components are shown in parentheses.

In this case, the inventory group mass is calculated as follows:

Inventory Group Mass of Group 1 = Inventory Component Mass of Component 1 + Inventory Component Mass of Component 2 + inventory Component Mass of Component 3

Inventory Group Mass of Group 1 = 120 + 100 + 130

Inventory Group Mass of Group 1 = 350 Pounds

Suppose you have created an RBI 581 Risk Analysis, Analysis 1, for Component 1. GE Digital APM then calculates the inventory component mass of Component 1 based on the input values in Analysis 1. In the following diagram, this value is shown in parentheses next to Analysis1.

In this case, the inventory group mass is calculated as follows:

Inventory Group Mass of Group 1 = Inventory Component Mass calculated based on input values from Analysis 1 + Inventory Component Mass of Component 2 + Inventory Component Mass of Component 3

Inventory Group Mass of Group 1 = 150 + 100 + 130

Inventory Group Mass of Group 1 = 380 Pounds