Non-Marine Capabilities

Activity Related to MRI Noise and Vibration      

  • J&A designs the layout of elastic bearings for stable isolation of an MRI machines/rooms

  • J&A design helped achieve a satisfactory installation of MRI equipment on a floor directly above a meditation space

 

Community Noise

  • Site review for a suburban agriculture company.  Included ambient noise survey, prediction of noise impact on community, and attending town hearings.

  • Quarry Noise - Measurement of quarry noise operations and report of community impact, followed by presentation at town hearing.

  • Chiller Plant - Measurement of residential noise impact of a chiller plant for a health facility, followed by design of noise mitigation.

  • Pickle Ball - Measurements of pickle ball noise and neighborhood ambient were made by J&A and presented to a town meeting, showing impact that would occur due to an intended new court.   The proposed court was rejected.

Private

  • Stand-by generator – J&A documented noise impact on neighbor from a stand-by generator due to scheduled “exercise.”  Resulted in offending neighbor upgrading to a new quiet unit and agreement on an acceptable “exercise” schedule.

  • Industrial noise – J&A measured the noise levels in a residential area resulting from local industrial activity, showing them to be in excess of local city bylaws. J&A’s report enabled residents to approach the owners and negotiate successful noise abatement modifications.

  • Roof Top unit complaint - A top floor resident complained of noise from roof top ventilation.  A J&A survey showed that primary noise was from a defective light fixture (cheap repair), with secondary noise treatable by ceiling modification (expensive fix).

 

Architecture

  • Dining/function rooms - For several clients, J&A has responded to complaints resulting from public spaces with highly reverberant interiors.  After testing and calculations, J&A offered a range of fixes attuned to the aesthetics and budgets of the organizations, with good results.

  • Floor design report - For a condo developer wishing to use a non-tested floor construction, J&A presented an analysis of the STC rating based on listed different constructions, which callowed the building inspector to grant the construction permit.

 

Machinery     

  • Noise and vibration testing - For a manufacturer of motion control equipment, J&A performs certification testing of various large pieces.  Past testing has required sound calibration of the rooms where on-site measurements are made, and impedance testing of the equipment mount foundations.  Testing is done to the requirements of our client’s customers.

  • Large Pumps – J&A was tasked with acceptance testing on a series of large pumps that reduce flooding in low-lying areas of the Florida Everglades. J&A was able to show that the torsional vibration experienced by the pumps were within the limits of the machinery specifications.

  • Other machinery - J&A has performed certification and noise control testing for a broad range of devices (small medical devices up to large fuel conditioning modules) at our facility and on-site at the manufacturer’s facility.  Leveraging the certification testing results, J&A has been able to produce effective noise reduction designs in cases where the noise levels are higher than anticipated.