The invention discloses a method for calculating the jet thrust of a water jet propulsion ship, and the method comprises a ship model which comprises a naked ship and a ship body with water jet propulsion. The relation among the rotating speed, the pressure difference and the flow of the ship body with water jet propulsion is obtained; based on the obtained relation among the rotating speed, the pressure difference and the flow of the ship body with the water jet propulsion function, a water jet propulsion ship jet thrust hydrodynamic model of the ship body with the water jet propulsion function is constructed; and based on the jet thrust hydrodynamic model of the water jet propulsion ship, jet thrust and steering force of the ship body with water jet propulsion are obtained through calculation. According to the method, a momentum impulse method is adopted, the water jet propulsion flow and the inlet and outlet flow speed are obtained, and the water jet propulsion force and the steering force are obtained by considering the thrust derating fraction, the steering induction factor and the like in the control process.

    本发明公开了一种喷水推进船喷推力计算方法,包括船模,所述船模包括裸体船和带喷水推进船体,包括如下步骤;获取带喷水推进船体的转速、压差与流量之间的关系;基于获得的带喷水推进船体的转速、压差与流量之间的关系构建带喷水推进船体的喷水推进船喷推力水动力模型;基于喷水推进船喷推力水动力模型计算得到带喷水推进船体的喷推力及操舵力。本发明采用动量冲量法,获取喷水推进的流量、进出口的流速,在操纵过程中考虑推力减额分数、操舵诱导因子等得到喷水推进力和操舵力。


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    Title :

    Method for calculating jet thrust of water jet propulsion ship


    Additional title:

    一种喷水推进船喷推力计算方法


    Contributors:
    LIU XIAOJIAN (author) / ZHAO JI (author) / ZHANG JIEJIE (author) / ZHAO DONGYUE (author) / YUAN SHUAI (author) / ZHOU XIAOKUI (author)

    Publication date :

    2025-03-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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