Session 4.6: Hardware Fault Tree Analysis (HFTA)

Session 4.6 Outline

• 4.6.1: Generate a Hardware Fault Tree Analysis (HFTA)
• 4.6.2: Export Hardware FTA Results

Discussion 4.6.1: Hardware Fault Tree Analysis

• The hardware fault tree traces progression of failures based on the System RBD structure
• Instead of functional failure modes it displays parts, components and systems
• For this session, we will need to be in the SRA Module

Exercise 4.6.1: Hardware Fault Tree Analysis

To generate a hardware fault tree analysis:

1. Access the Fault Tree Builder and select the new-analysis icon
2. Enter the following details:
   • Name: Hardware Fault Tree
   • Description: Hardware Fault Tree for Vehicle System
   • Fault Tree Type: Hardware Fault Tree
   • Set Vehicle System as the Top Event
   • Reliability Metrics: Baseline

Exercise 4.6.2: Exporting Hardware Fault Tree Results

To export the Hardware Fault Tree as an image:

1. Select the capture icon to capture the entire Hardware Fault Tree
2. Select a directory and enter a file name for the PNG image
3. Select Save to save the image of the current Fault Tree

To export the Hardware Fault Tree analysis results:

1. Select the export icon in the Hardware Fault Tree tab
2. Select a directory and enter a file name for the .csv export
3. Select Save to save the analysis results of the Hardware Fault Tree

Session 4.6 Summary

• 4.6.1: Generate a Hardware Fault Tree Analysis (FTA)
• 4.6.2: Export Hardware FTA Results

Session 4 Overall Summary

• 4.1: Reliability Block Diagram
• 4.2: Reliability Allocation
• 4.3: Reliability Editing
• 4.4: Failure Rate Prediction
• 4.5: Markov Analysis
• 4.6: Hardware Fault Tree Analysis (HFTA)