A ship swing table for wind tunnel test

Abstract

The invention discloses a ship swaying platform for wind tunnel test. The ship swaying platform comprises a moving mechanism, a follow-up mechanism, a moving platform, a base and a motion controller;the moving mechanism and the follow-up mechanism are arranged between the moving platform and the base, the motion controller and the motion mechanism are connected through a cable to control the motion mechanism to perform controllable telescopic motion; and a main control computer of a wind tunnel transmits a posture control signal of a ship model to the motion controller through the cable, andthe motion controller controls a RPR component I, a RPR component II and a RPR component III to perform telescopic motion. The ship swaying platform can be used for simulating the motion of an aerialcarrier ship in the wind tunnel to form an air flow field above and around a flight deck of the aerial carrier ship, and conditions are provided for the measurement of the dynamic ship air flow fieldin the wind tunnel, the research of the adaptability of warships of the aerial carrier ship and a shipboard aircraft and the like. The different attitudes of the ship model in the wind tunnel flow field can be adjusted, and conditions are provided for the aerodynamic measurement of the ship model under different attitudes and the measurement of the surrounding airflow field.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel tests, in particular to a ship swing table for wind tunnel tests. Background technique [0002] The safety of take-off and landing of carrier-based aircraft is one of the most dangerous actions on board aircraft-based ships, and it is also the first problem that must be solved for aircraft carriers to form combat effectiveness. Due to the complex air flow field above and around the flight deck, it will have a great impact on the stability of the carrier-based aircraft during take-off and landing, and even endanger the flight safety of the carrier-based aircraft. In order to avoid accidents and ensure the safety of take-off and landing, All naval powers attach great importance to and actively solve this problem. According to research, the main factors affecting the safety of carrier-based aircraft takeoff and landing include the seawater flow field, the movement of the carrier-based ship, and ...

AI Technical Summary

Problems solved by technology

Since the computer modeling and numerical simulation methods used in our country, especially the flow field coupling methods, are not yet perfect, the reliability of the calculation results is not very high, so the research on the air flow field related to dynamic aircraft-carrying ships mainly adopts the second method mentioned above. method

Secondly, due to the high cost of sea testing on real ships, the scope of testing is limited

Moreover, due to the complex structure of the existing general-purpose ship motion simulator, especially its large size, it is difficult to install it inside the wind tunnel test section. Even if it is installed in the wind tunnel, it will cause a large degree of blockage and affect the test accuracy; therefore, It is necessary to carry out the measurement of the dynamic ship airflow field in the wind tunnel, and the study of the suitability of the carrier-based ship and carrier-based aircraft. The current general-purpose ship motion simulator cannot meet the requirements.

Images