Identifying and mitigating resonance from a valve serving hibernaculum

This case study examines the challenges related to identifying and mitigating unwanted noise from a mechanical system serving hibernaculum, used for lemur torpor cycles. To support the torpor cycle, the design team determined a steady state background noise goal. Once installed, intermittent noise was discovered that the lemur research team felt might interfere with the rest cycle negatively affecting the lemurs and the results of any research. This presentation will review the investigation team’s methodology in identifying the main source of the noise, which was a coolant fluid value serving a fan powered box, review some of the measurement results, and discuss the solutions determined with the chamber design team. The implementation of the mitigation solution is underway and may be included in the presentation if completed by the time of presentation.