Novel pump-jet propeller hydraulic model with movable flexible guide vane and design method

Abstract

The invention discloses a pump-jet propeller hydraulic model with a movable flexible guide vane and a design method, and relates to the technical field of underwater vehicle propellers. The pump-jet propeller hydraulic model comprises a flexible guide vane, a rotor, a stator, a stator hub and a rotating shaft; the stator hub is of a hollow structure, a supporting bearing is arranged in the stator hub, and the supporting bearing is used for supporting and positioning the rotating shaft; the stator and the flexible guide vane are arranged on the outer side wall of the stator hub; the rotor is arranged on the rotating shaft, and the rotor is arranged between the stator and the flexible guide vane; the stator, the rotor and the flexible guide vane are all arranged in the guide pipe, wherein the stator is fixedly connected with the guide pipe; the guide pipe is of a conical structure, the flexible guide vane is arranged at the large end of the conical structure, and the stator is arranged at the small end of the conical structure. According to the invention, the flexible guide vane is additionally arranged so as to better adapt to complex sea conditions such as non-uniform wake flow and oblique flow, and the stability and the hydrodynamic performance under the complex sea conditions are improved.

Description

technical field [0001] The invention relates to the technical field of underwater vehicle propellers, in particular to a hydraulic model and design method of a pump-jet propeller with movable flexible guide vanes. Background technique [0002] The research and development technology of marine equipment such as underwater vehicles is a strategic equipment related to the national economy, the people's livelihood and national security. Marine equipment mainly relies on its propeller system when navigating and operating underwater. As a core component, it is the source of power for underwater vehicles. Make the vehicle obtain the required speed and range. Propulsion technology is one of the key technologies for the development of a vehicle, which determines its underwater navigation performance such as its maneuverability and navigation speed, and ensures its efficient and safe completion of tasks underwater. Among them, the pump-jet propeller has the advantages of high conceal...

AI Technical Summary

Problems solved by technology

When the pump jet propeller works in the oblique flow, the oblique flow affects the hydrodynamic performance of the pump jet and affects its lateral load, which not only affects the thrust and torque to a certain extent, but also causes the thrust and torque curves to be different from those in the open water state. changes, it will also produce a strong exciting force, which will have an adverse effect on the stability of the aircraft's maneuvering

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