WF52: Create RBD model

Pre-Requisites

• A. System Model: Indentured model required to configure RBD and assign Reliability data to System model items.
• 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. Decision — Is RBD structure created? If yes, skip ahead (loop point for adding additional groups). If no, proceed to Step 4.
4. Select a RBD group type from the icon menu, or select (right-click) the RBD canvas to create a RBD group. Group types: Series, Parallel, Exclusion, Complex, K/N, Redundancy.
5. Drag and drop items into their respective RBD group previously created.
6. Use the Properties viewer to enter RBD group details. Each RBD group type requires specific details: Display Name, # of Functioning Items, Key Element, Key Element State.
7. Decision — Additional RBD Group Required? If yes, return to Step 4. If no, RBD Structure is Defined.

Screen-by-screen detail (from embedded screenshots)

• Step 1: Open MADE Project — Project Explorer shows the system hierarchy (e.g. Vehicle System [4/29] > Functions, Coupling, Driveline [11/11], Power Generation [3/14], Vehicle). System Model canvas shows the block diagram (e.g. Fuel Tank, Diesel Engine, Control Unit with Liquid/Gas/Electrical/Mechanical-rotational flow connections and a warning marker on Diesel Engine).
• Step 2: Open RBD Model — Right-click a component (e.g. "Diesel Engine" under Power Generation) in Project Explorer, select "RBD Model" from the context menu (alongside New, System Model, Failure Diagram, Functions, Maintenance Actions, Markov Analysis, Cut/Copy/Paste, Delete, End Effect Item, Response Paths, Override Failure Diagram, Failure Injection, Response Simulation, Load from Library, Save to Library, Advanced Properties). Opens the RBD canvas (e.g. "Diesel Engine" tab) showing individual item reliability blocks with R(t) values (e.g. Primary Fuel Filter R(t)=0.3819201, Secondary Fuel Filter R(t)=0.9999089, Lift Pump R(t)=0.9930006, Governor, Engine R(t)=0.9930006, Coupling 1 R(t)=0.9930006, Injector Pump R(t)=0.9930006, Air Filter R(t)=0.3819201) and an overall R(t) at top (e.g. R(t)=0.0541597).
• Step 4: Create RBD Group Type — RBD toolbar icons: S (Series Group), P (Parallel Group), C (Complex Group - Decomposition Method), Ev (Complex Group - Event Space), R (Standby Redundancy Group), K/N (K/N Redundancy Group), E (Exclusion Group). Alternatively right-click the canvas > Group > [Series Group / Parallel Group / Complex Group - Decomposition Method / Complex Group - Event Space / Standby Redundancy Group / K/N Redundancy Group / Exclusion Group]. Other context menu items: Markov Analysis, Ungroup, Zoom In/Out, RBD Reliability Analysis, RBD Equation Viewer, Monte Carlo, Hide RBD Groups, System Model Layout.
• Step 4 (Allocate items in RBD Groups) — Drag items into created groups, e.g. a "Series Group 3.1" containing a "K/N Redundancy Group 3.2" with Primary Fuel Filter, Air Filter, Secondary Fuel Filter feeding into a "1/3" K/N node, alongside standalone items Lift Pump, Coupling 1, Engine, and a "Series Group" containing "Injector Pump", plus an "Exclusion Group" containing "Governor". Overall reliability shown at top (e.g. R(x)=0.5653844).
• Step 6: Enter RBD Group Details — Select a group (e.g. "K/N Redundancy Group 3.2") and use the Properties panel: Name field, description text ("Redundant items all operate under constant, identical load."), "Functioning items (K):" numeric field (e.g. 1) and "/ Size (N):" field (e.g. 3), described as "(No. of functioning items required)".

Outputs

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