Cases
8 items
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ViewSteel platforms: equipment, connections and panels
When a platform radiates noise, first decide whether it comes from the equipment, the connections or the panels, then define where to coat.
ViewElevator car: before/after data collection at a test tower and a residential building
A record of on-site data collection before and after work on an elevator car, grouped by test tower and residential building, up and down travel.
ViewAir-conditioner outdoor casing: compressor, fan and shell
Outdoor-unit noise can come from the compressor, the fan or the casing response; damping addresses the panel vibration part of it.
ViewRefrigerator compressor support plate: start-up and steady-state vibration
Compressor vibration passes through the support into the panel and is radiated as sound; confirm the transmission path before deciding where damping goes.
ViewWashing machine side panel: panel vibration during the spin cycle
Noise during spin can involve load, installation, machine condition and side-panel vibration together, so look at it phase by phase.
ViewShip cabins: airborne sound and panel radiation
A booming cabin may be driven from the engine room, or radiated into the room by panel vibration; damping addresses the latter path only.
ViewShip engine rooms: machinery sources and hull vibration
Engine-room noise involves both airborne sound and hull vibration; establish the dominant cause before coating the whole space.
ViewHigh-speed train side wall project
A project-name record for a high-speed train side wall project.
