Statistical estimation of uncertainties associated with ship operations in fresh water ice

• Operational Time Window (OTW) and its confidence level are important for vessels operating in ice covered waters. This can be evaluated by quantifying all contributing factors in terms of their influence along with respective associated uncertainties. For a case study involving a barge operating in Lake Mälaren, Sweden, five criteria are evaluated, and associated uncertainties are quantified using Variation Mode and Effect Analysis (VMEA) to give individual contribution towards overall uncertainty. Ship resistance due to ice and ice loads dominated over other criteria with highest contributions to uncertainty at 28% and 72% respectively.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)

NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)

Nyckelord

Channel Ice

Confidence Interval

Effect Analysis (VMEA)

Finnish-Swedish ice class regulations (FSICR)

Fish Bone Method

Fresh Water Ice

Ice Loads

Inland Waterways

Level Ice

Ship Ice Resistance

Uncertainty

Variable Mode

Arctic engineering

Marine engineering

Ships

Uncertainty analysis

Water

Effect analysis

Fish bones

Fresh Water

Ice resistances

Swedishs

Ice

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)