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再生水泵叶轮泵英文参考文献和翻译

更新时间:2016-8-28:  来源:毕业论文

再生水泵叶轮泵英文参考文献和翻译 Abstract
Purpose – The purpose of this paper is to present a method of rapid prototyping (RP) used in the development of a regenerative pump impeller. RP
technology was used to create complex impeller blade profiles for testing as part of a regenerative pump optimisation process. Regenerative pumps are
the subject of increased interest in industry.
Design/methodology/approach – Ten modified impeller blade profiles, relative to the standard radial configuration, were evaluated with the use of 校园卫生创先争优实施方案
computational fluid dynamics (CFD) and experimental testing. Prototype impellers were needed for experimental validation of the CFD results. The
manufacture of the complex blade profiles using conventional milling techniques is a considerable challenge for skilled machinists.
Findings – The complexity of the modified blade profiles would normally necessitate the use of expensive computer numerically controlled machining
with five-axis capability. With an impeller less than 75mm in diameter with a maximum blade thickness of 1.3mm, a rapid manufacturing technique
enabled production of complex blade profiles that are dimensionally accurate and structurally robust enough for testing.本文来自六&维*论~文'网,毕业论文 www.lwfree.cn
Research limitations/implications – As more advanced RP machines become available in the study in the coming months, e.g. selective laser
sintering, the strength of the parts particularly for higher speed testing will improve and the amount of post processing operations will reduce.
Practical implications – This technique offers the possibility to produce components of increased complexity whilst ensuring quality, strength,
performance and speed of manufacture.
Originality/value – The ability to manufacture complex blade profiles that are robust enough for testing, in a rapid and cost effective manner is
proving essential in the overall design optimisation process for the regenerative pump.
Keywords Manufacturing systems, Rapid prototypes, Pumps
Paper type Research paperIntroduction
Pumps are the single largest user of electricity in industry in
the European Union and energy savings of 3 per cent would
result in a 1.1TWh p.a. reduction in consumption or a saving
of 0.54Mton of CO2 production (European Parliament,
2005). As industry attempts to make energy savings and
reduce environmental impact, this paper considers the
manufacture of impellers to compare the computational
predictions with experimental results of a regenerative pump
with a view to improving pump performance. The complex
flow-field within a regenerative pump represents a significant
challenge to detailed mathematical modelling as there is
considerable flow separation in the impeller blading (Badami,
1997; Engeda, 2003; Engels, 1940). Analytical models do not
describe the flow characteristics fully as they are based on
simplified assumptions and experimental correction factors2893

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