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The tri-propellant thermal propulsion system is one of the hottest subjects in the field of underwater vehicles recently.To improve efficiency of underwater vehicles,a method of radial clearance control of the tri-proportion has been proposed.Based on analyzing the factors which influence the pressure decrease and leakage of the tri-proportion controller,a method is used for precision analysis and proportion adjustment by using the median optimizing theory.Analysis results show that accuracy of the proportion controller is dependent on all the leakage,while the leakage is decided by radial clearance and pressure;the leakage can be controlled effectively and the accuracy of the proportion can be improved with the radial clearance control method.The method of accuracy analysis and clearance control has value on the design of various hydraulic motors.
The tri-propellant thermal propulsion system is one of the hottest subjects in the field of underwater vehicles recently. To improve efficiency of underwater vehicles, a method of radial clearance control of the tri-proportion has been proposed. the pressure decrease and leakage of the tri-proportion controller, a method is used for precision analysis and proportion adjustment by using the median optimizing theory. Analysis results show that accuracy of the proportion controller is dependent on all the leakage, while the leakage is decided by radial clearance and pressure; the leakage can be controlled effectively and the accuracy of the proportion can be improved with the radial clearance control method. The method of accuracy analysis and clearance control has value on the design of various hydraulic motors.