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发表于 2015-3-18 09:42
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来自： 中国浙江舟山
Location
Take the following into consideration when searching for a suitable place to mount
the MRU:
• The unit is designed for installation in an indoor environment and for operation within
the temperature range.
• For best roll, pitch, surge and sway measurements, place the MRU as close to the
centre of gravity (CG) of the ship as possible. Alternately, try to mount it along the
R-axis of the ship as close to the CG as possible. Roll is usually the most dominant
angular motion; avoid mounting the MRU high up or out to the side of the ship.
• For best heave measurement, mount the MRU as close as possible to the location
where the heave is to be measured.
Figure 1 Location of System Parts
Be aware of:
Vibrations
Direct mounting onto the main hull structure is preferable.
Note
The worst mounting positions are thin walls that may come in resonance with vibrations
driven by machinery, propellers, pumps or motors. Avoid mounting the MRU close to
hydraulic pumps and valves where there are high frequency vibrations.
Temperature changes
For safe mounting of the MRU, place the unit in a location where the temperature is low
and where changes in temperature are slow. A location directly on the hull far away from
the heat of the machinery, heaters and air conditioning systems is preferable.
Corrosion problems
Place the MRU in a location where no direct splashing seawater is present.
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楼主: fegor
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