Uncertainty of measurements of podded propulsor performance characteristics

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DOIResolve DOI: http://doi.org/10.1016/j.oceaneng.2014.02.009
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TypeArticle
Journal titleOcean Engineering
ISSN0029-8018
Volume81
Pages130138; # of pages: 9
SubjectUncertainty analysis; Error limits; Bias error; Precision error; Podded propulsors; Measurement uncertainty
AbstractOne of the fundamental aspects of any physical experiment is the uncertainty or error limits of the measurement. Unfortunately, majority of published model experimental results do not come with the much needed error analysis. It is imperative that a fundamental and rigorous uncertainty assessment is carried out for all measurements, especially for measurements using a newly designed apparatus. This paper presents the uncertainty analysis methodology and results for a newly designed fully functional podded propulsor performance measurement apparatus. The measurements include propeller thrust, torque, rotation rate and advance speed as well as global forces and moments of a pod unit. The facility and measurement systems are briefly described, and detailed uncertainty assessment methodologies with examples for each measurement are provided with descriptions of bias and precision limits and total uncertainties. The generalized methodology can also be used for other relevant measurements.
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LanguageEnglish
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedYes
NPARC number21272841
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Record identifier987405c6-7b60-4a18-b729-7ec8f278c14b
Record created2014-12-03
Record modified2016-05-09
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