ZIAA ARCHIVE RECORDANOMALY POST-MORTEMS
INC-2024-10failureVERIFIED RECORD
SPRING-FATIGUE: Spring Reverb Tank Mechanical Suspension Collapse
INC-2024-10HAZARD: MECHANICAL_COMPONENT_FAILURESTATUS: REVERB_TANK_RE-STRUNG_OPERATIONALINCIDENT DATE:
SPRING-FATIGUE: Spring Reverb Tank Mechanical Suspension Collapse
Lead Investigator: Lucian Mercer
INCIDENT NARRATIVE
While measuring acoustic impulse response curves on a custom 3-meter architectural spring reverb tank (PROT-041), excessive continuous test tone levels excited the spring into violent lateral whipping motion. The primary phosphor-bronze coil experienced metal fatigue at the drive transducer clamp and fractured.
ROOT CAUSE ANALYSIS
Continuous test tone duty cycles exceeded mechanical tensile fatigue thresholds of hand-wound phosphor-bronze alloys.
CONTAINMENT PROTOCOL
Upgraded spring alloy to high-tensile music wire steel and added magnetic eddy-current dampers to limit maximum lateral spring excursions.
SALVAGED / REASSIGNED HARDWARE
Electromagnetic Drive CoilsPiezo Pickup BridgesHeavy Walnut Acoustic Enclosure