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| Water is environmentally friendly, nonflammable, inexpensive, clean, readily available, and easily disposable. As concerns for environmental compatibility, safety and hygienic requirements, hydraulic systems using natural water as pressure medium become more and more attractive. To meet the demand for this new technology, a R & D program for water hydraulics has been carried out at HUST. In this paper, the advantages of water hydraulics are discussed and the special design challenges for development of water hydraulics, such as low viscosity and poor tribological behaviour, corrosion and other material changes in water, cavitation, microorganisms’ growth and contamination control are analyzed in detail based on the authors’ research. Besides, some experimental researches on the cavitation and flow characteristics of water hydraulic throttles are introduced. At last, some of the developed seawater hydraulic components with pressure 14 MPa are presented. |
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| Keywords:R & D water hydraulics flow characteristics water hydraulic component |
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