Modeling and testing for hydraulic shock regarding a valve-less electro-hydraulic servo steering device for ships
- Resource Type
- Academic Journal
- Authors
- Jian, Liao; Lin, He; Rongwu, Xu
- Source
- International Journal of Fluid Machinery and Systems. 2015-12 8(4):318-326
- Subject
- accumulator
changing rate
external load
hydraulic shock
steering device
valve-less
- Language
- Korean
A valve-less electro-hydraulic servo steering device (short: VSSD) for ships was chosen as a study object, and its mathematic model of hydraulic shock was established on the basis of flow properties and force balance of each component. The influence of system structure parameters, changing rate of motor speed and external load on hydraulic shock strength was simulated by the method of numerical simulation. Experiment was designed to test the hydraulic shock mathematic model of VSSD. Experiment results verified the correctness of the model, and the model provided a correct theoretical method for the calculation and control of hydraulic shock of valve-less electro-hydraulic servo steering device.