Wheel rim propeller model testing method and device thereof

Abstract

The invention discloses a wheel rim propeller model testing method and a device thereof. The method comprises the steps of (1), mounting the wheel rim propeller model on a testing device, applying electric power to the wheel rim propeller model, and driving the testing device drive the propeller model to move in a towing pool; (2), acquiring a thrust force T of the wheel rim propeller model in theaxial direction, a bear resistance R of the wheel rim propeller model without electric power application, and a torque Q which is generated by the wheel rim propeller rim; and (3) calculating a propeller thrust force coefficient KT, a torque coefficient KQ and propeller efficiency eta which represent performance of the wheel rim propeller. The device comprises a mounting platform, a six-freedom platform, a six-component balance and the propeller model. According to the wheel rim propeller model testing method and the device thereof, different working conditions of the wheel rim propeller model in underwater operation can be accurately simulated; various water-power parameters of the propeller model in different testing states are measured by means of the six-component balance; and furthermore working efficiency of the wheel rim propeller model is calculated.

Description

technical field [0001] The invention relates to the technical field of ship propeller performance tests, in particular to a model test device and method for a rim propeller. Background technique [0002] The rim thruster is a new propulsion method proposed and developed in recent years. Compared with the traditional propeller propulsion, the rim thruster breaks through the conventional thinking mode. The design integrates the motor and the propeller into one body, making the structure more compact , which reduces the space occupied by the propulsion system and improves the economy of the ship. At the same time, the rim thruster cancels the traditional propeller propulsion shafting, reduces the vibration and noise when the ship is sailing, improves the stealth performance of the ship, and has high military application value. [0003] The rim thruster model test refers to a means to determine the hydrodynamic performance of the rim thruster model by using the method of physic...

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Problems solved by technology

[0004] At present, domestic scholars have carried out research work on rim thruster design, hydrodynamic performance calculation, integrated motor design, etc., mainly relying on CFD software for related calculations, but there are few studies on hydrodynamic performance tests, and CFD calculation results are obtained. There is no test verification, and the lack of simulation of the propeller under various working conditions during the test process leads to the inability to accurately evaluate the hydrodynamic performance of the rim propeller model

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