WF53: Creating Mirror Blocks Configuration in RBD

Pre-Requisites

• A. FBD Model: Indentured model required to configure RBD and assign Reliability data to System model items. This system should require mirror blocks.
• B. RAM Module: RAM module shall be enabled to access RBD.

Detailed Steps

1. Open an existing MADE Project.
2. Open the RBD Analysis of any parent model item (System/Subsystem) through the context menu (right-click).
3. Select the RBD group type "Complex Group - Event Space" from the icon menu, or select (right-click) the RBD canvas to create the RBD group.
4. Open the Source Block Definition pane of the Event Space group (left side) and populate (drag and drop) mirror block items.
5. Click the "Add a new column [...]" button to add a column to the Event Space group.
6. Click the "Add a new K/N Group [...]" button to add a K/N group to an existing column of the Event Space group.
7. Drag and drop items to the appropriate Event Space group sections (column, K/N Group). Mirror blocks can also be added to required sections.
8. Click the "Toggle connection tool" button to create connections between items in the Event Space group.
9. Use the Properties viewer to enter RBD group details. Each RBD group type requires specific details: Display Name, # of Functioning Items.
10. Check the Event Space information has been fully defined (items, connections, K/N groups, etc.). If not all information is defined, loop back to Step 4 (Allocate Mirror Block). If all information is defined, RBD Structure is Defined.

Screen-by-screen detail (from embedded screenshots)

• Step 1: Open MADE Project — Project Explorer (e.g. Vehicle System [4/29] > Driveline [11] > Differential, Driveshaft, Half Shaft Front/Rear, Planetary Gearbox Front/Rear, Transmission, Wheel Front/Rear, Wheel Resistance Front/Rear). System Model canvas (Vehicle System) shows Power Generation > Coupling > Driveline > Vehicle with flow connections (Flow rate, Mass flow rate, Voltage, Torque, Angular velocity).
• Step 2: Open RBD Model — Right-click "Driveline" in Project Explorer > RBD Model. Opens the "Driveline" RBD canvas showing a chain: Transmission -> Driveshaft -> Differential -> splits into two branches (Half Shaft Rear -> Planetary Gearbox Rear -> Wheel Resistance Rear -> Wheel Rear) and (Half Shaft Front -> Planetary Gearbox Front -> Wheel Resistane Front -> Wheel Front), each block showing R(t) values, with overall R(t)=0.5299189 shown at top.
• Step 3: Create Complex Group - Event Space — Click the "Ev" (Complex Group - Event Space) toolbar icon. A new "Complex Group - Event Space 2.1" panel appears below the RBD canvas with a "Source Block Definition" side panel (initially showing a single column "1" and a K/N node) and navigation arrows (<<, <|>, +, <|>, >>).
• Step 4: Define Mirror Blocks (Source Blocks) — In the "Source Block Definition" panel (left of the Event Space group), drag & drop mirror block items such as "Driveshaft" (R(t)=1.0), "Wheel Rear" (R(t)=1.0), "Wheel Front" — these become selectable mirror/source blocks reusable within the Event Space structure.
• Step 5: Add new column(s) to Event Space group — Click the "+" (Add a new column) buttons along the Event Space group header to add sequential columns (e.g. columns 1 through 7 shown), each with its own "+" control to add K/N groups.
• Step 6: Add new K/N Group(s) to Event Space group — Within a column (e.g. column 7), click to add nested K/N groups — example shows two inner K/N nodes feeding into an outer K/N node, forming a nested redundancy structure.
• Step 7: Allocate item(s) to column(s) & K/N Group(s) — Drag mirror blocks (e.g. "Wheel Rear", "Wheel Front" from Source Block Definition) and model items (Transmission, Driveshaft, Differential, Half Shaft Rear/Front, Planetary Gearbox Rear/Front, Wheel Resistance Rear/Front) into the appropriate columns and K/N group boxes of the Event Space grid. Overall reliability updates dynamically (shown as R(t)=0.0 mid-configuration since connections aren't complete yet).
• Step 8: Create connection between items — Use the "Toggle connection tool" to draw connections between blocks across the Event Space grid (arrows drawn between Transmission -> Driveshaft -> Differential -> Half Shaft Rear/Front -> Planetary Gearbox Rear/Front -> Wheel Resistance Rear/Front -> nested Wheel Rear/Wheel Front K/N pairs -> final K/N node). Overall reliability recalculates (e.g. R(t)=0.8842671).
• Step 9: Enter RBD Group(s) Details — Select a K/N group node (e.g. containing two "Wheel Rear" mirror blocks, each R(t)=0.8928480) and use the Properties panel ("Event Space Column KN Group"): "Functioning items (K):" field (e.g. 1) and "/ Size (N):" field (e.g. 2), described as "(No. of functioning items required)".

Outputs

• I. RBD Structure: RBD structure can be exported leveraging the "Capture screen" feature of MADE.