A hydrodynamic measurement system for an underwater vehicle

Abstract

The invention discloses a hydrodynamic measurement system for an underwater vehicle, which comprises an anti-cavitation tail support key (2), a vehicle precursor (3), a tail force measuring six-component force balance (4), and a precursor force measuring six component Force balance (5), soft brush (6), sealing parts (7), balance support in the flight body (8), front body balance support rod (9) and tail balance support rod (10); tail force measurement six-component force The balance (4) is made into the shape of the tail of the underwater vehicle, not only as the tail of the underwater vehicle, but also capable of measuring the hydrodynamic force borne by the tail of the underwater vehicle; The six-component force balance directly measures the hydrodynamic force of the front body of the vehicle through the six-component force balance on the front body; the joint between the tail of the vehicle body and the front body is designed to be sealed by sealing parts and soft brushes. The invention can accurately separately measure the hydrodynamic force of the precursor and the tail of the navigation body, and reduce the influence of the hydrodynamic fluctuation of the tail on the measurement.

Description

technical field [0001] The invention relates to a hydrodynamic measurement system for an underwater vehicle. Background technique [0002] Cavitation technology is an important key technology in the hydrodynamic field of underwater vehicles. For horizontally launched underwater vehicles, the use of cavitation technology can break through the speed limit of existing underwater vehicles, so that most of the surface of the underwater vehicle is surrounded by low-density water vapor or gas, and the resistance of the vehicle is greatly improved. Reduce; for the vertically launched underwater vehicle, the use of cavitation technology can reduce the hydrodynamic load to ensure the stability of the vehicle's underwater movement. [0003] Due to the package of cavitation, only a small part of the front body and the tail of the vehicle keep in contact with the water when the vehicle navigates underwater, so that the force of the vehicle is mainly borne by the front body and the tail....

AI Technical Summary

Problems solved by technology

At present, the conventional hydrodynamic measurement system measures the hydrodynamic force of the entire vehicle body, and it is generally difficult to measure the hydrodynamic force on the front body and the tail of the vehicle body separately.

If we learn from the similar separate measurement technology in the air wind tunnel, the leakage and vortex flow of the water flow in the gap between the precursor and the tail will bring about large changes in hydrodynamic parameters, and it is difficult to obtain accurate measurements of the precursor and the tail. Split hydrodynamic parameters

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