7Li Ke,M.A.Mannan,Xu Mingqian.Electro-hydraulic proportional control of twin-cylinder hydraulic elevators[J].Control Engineering Practice Volume,2001(4):367-373.
8H.Kuwano,T.Matsushita.Observers for direct drive servovalves[J].Journal of Hydraulics & Pneumatucs,1984(4):15-19.
1A Beune, J G M Kuerten. CFD Analysis with Fluid-struc- ture Interaction of Opening High-pressure Safety Valves[ J ]. Computers & Fluids,2012, (64) : 108 - 116.
2J De Hart, G W M Peter. A Three-dimensional Computa- tional Analysis of Fluid-structure Interaction in the Aortic Valve [ J ]. Journal of Biomechanics,2003, (36) : 103 - 112.
