Ship propulsion shafting dynamic characteristics test system

A technology of dynamic characteristics and testing system, which is applied in ship building, ship design, measuring devices, etc., can solve the problems that cannot reflect the dynamic characteristics of ship shafting, etc., and achieve good water tightness, accurate experimental accuracy and high reliability. Effect
CN111964735BActive Publication Date: 2022-05-17CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
Publication Date
2022-05-17

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Abstract

The invention discloses a system for testing the dynamic characteristics of a ship's propulsion shafting system, which relates to the technical field of ship's propulsion shafting system, including a propulsion shafting system formed by a rear section of a tail shaft, a front section of a tail shaft, a half-coupling and an intermediate shaft, a propeller, a six-component dynamic Force measuring device, data acquisition and launching device, non-contact electromagnetic loading device and three-way watertight acceleration sensor, the six-component dynamic force measuring device is located between the rear section of the tail shaft and the front section of the tail shaft and is used to collect pulse force; non-contact electromagnetic loading The device is installed on the intermediate shaft to apply dynamic excitation to the propulsion shaft; each three-way watertight acceleration sensor is distributed at different sections of the tail shaft to collect vibration signals of the propulsion shaft; The force measuring device is connected with the three-way watertight acceleration sensor to realize the test and analysis of the dynamic characteristics of the propulsion shafting. The test system carries out the dynamic characteristic test experiment under the actual working environment of the ship, which improves the accuracy of the experiment.
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Description

technical field

[0001] The invention relates to the technical field of ship propulsion shafting, in particular to a dynamic characteristic testing system for ship propulsion shafting. Background technique

[0002] The propulsion shafting is an important link in the power plant of the ship system. Its main function is to transmit the power from the main engine of the ship to the propeller to make the propeller rotate, and at the same time transmit the thrust generated when the propeller rotates to the hull through the thrust bearing to propel the ship. sailing.

[0003] Ship propulsion shafting is prone to various vibrations due to various reasons, such as uneven torque transmission of the main engine, misalignment of installation, uneven material, inaccurate processing, and unbalanced weight of the shafting, etc. Torsional vibration and lateral vibration; and because the propeller of the ship rotates in the uneven flow field at the stern, the uneven thrust can cause the sha...

Claims

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