Case Studies

All of J&A’s engineering personnel are experts in noise and vibration. We provide a full spectrum of marine noise and vibration control engineering services to owners, operators, designers, and builders in the marine industry. In addition, we regularly bring our expertise to community, industrial, and product noise assessment and abatement. Explore our case studies to see how we conducted noise & vibration testing in various marine and non-marine environments.

Residential Noise Compliant

Noise complaints from residential property owners adjacent to a commercial site.

Propeller Shaft Vibrations on Medium-sized Work Boat

Unusually high shaft vibrations cause intermittent contact between shaft and shaft seal housing at watertight bulkhead, jeopardizing shaft integrity and negatively impacting engine operation

Stringent Engine Control Room Noise Specifications on Medium/Large Work Boat

Vessel specifications required stringent 70 dBA airborne noise level in Engine Control Room (ECR) and Mud Room immediately adjacent to loud 115 dBA Engine Room.

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