The Research On Important Structural Parameters To Effect Performance Of Hydraulic Flapper-Nozzle Servo-Valve

Based on the analysis of the status quo of domestic electro-hydraulic servo valve technology development, in this paper, a comparative study of the main structural parameters of China-made electro-hydraulic servo valve and its corresponding impact on the performance of the electro-hydraulic servo valve. Using of the established parameter database, successful adoption of simulation studies to optimize the main structure parameters of the electro-hydraulic servo valve to increase the corresponding features.First of all, this paper systematically studied the principle of two-nozzle baffle electro-hydraulic servo valve and its impact on the performance of the structural parameters and to establish the two-nozzle baffle servo valve mathematical mode. Application of LabVIEW software design virtual instrument test-bed to comparative study the performance of servo valve with different structure parameters. According to the data by testing the structural parameters of China-made products and the introduction of similar China-made products to establish the parameters database. A detailed analysis of the data to be two-nozzle baffle electro-hydraulic servo valve specific transfer function.Then, Matlab software applications to carry out simulation tests contrast, come to affect the performance of the main parameters of the law. Based on the law and optimize the parameters to be the best combination to achieve optimum performance.In this paper, created the database of the structure parameters for the establishment of a genuine breakthrough in the Self-developed electro-hydraulic servo valve product mix design confirmation-based platform, in order to achieve effective self-ownership structure of the parameters of the servo valve design model. Experimental results show that the net stiffness, the nozzle cavity pressure feedback factor, and other factors have been the best combination of performance parameters by adjusting the strength of the magnetic charge, the nozzle from the tailgate, and other structural parameters of the nozzle baffle servo valve to achieve optimum performance.