Defense Electronics & Ruggedized Systems worked example

Shock/Vibration Test Capacity at 99% shock and vibe lab uptime: a worked example

This scenario runs the shock/vibration test capacity calculation on the strong side: 99% shock and vibe lab uptime, with every other input held at its documented default. Use it when shock/vibration test capacity in defense electronics and ruggedized systems is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Units per profile cycle on the table: 4 units / cycle (unchanged)
  • Scheduled shock/vibration profile cycles: 480 cycles (unchanged)
  • Shock/vibe lab uptime: 99 % (raised for this scenario; the documented default is 90)
  • First-pass test release yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross shock/vibration test capacity = units tested per profile cycle × available shock/vibration cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for released shock/vibration test capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross shock/vibration test capacity.
  • At this operating point the engine returns 19.2 units for shock/vibration lab downtime loss.
  • At this operating point the engine returns 57.02 units for shock/vibration retest yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where shock and vibe lab uptime sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • Use it to forecast how many units a shock/vibration lab can certify in a planning period, or to size table time against a program's unit count. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Released shock/vibration test capacity: 1,844 units (headline result)
  • Gross shock/vibration test capacity: 1,920 units
  • Shock/vibration lab downtime loss: 19.2 units
  • Shock/vibration retest yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live Shock/Vibration Test Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.