Tensioned Wind Load Test System

Abstract

The invention belongs to a launching device, in particular to a tensioning type wind load testing system. The advantage of the present invention is that the windshield and grid in the air supply system can ensure that the ambient air is evenly mixed before flowing to the simulated launch vehicle, and the combination of the air filter and the fine filter controls the randomness of dust in the air Suspended particles; pre-dried air and rehumidified air can control air humidity conditions according to experimental requirements, and can compare and determine the degree of influence of humidity on wind load characteristics; voltage stabilization and drying treatment can further suppress dynamic pressure and even random pulsating pressure to ensure wind pressure. The test requires a relatively stable output and improves the working environment of the wind tunnel test; the tension balance can test the tension in each tension direction, and can analyze the wind load characteristics and wind disturbance torque of the launch vehicle.

Description

technical field [0001] The invention belongs to a launching device, in particular to a tensioning type wind load testing system. Background technique [0002] During the missile launch process, the airflow in the environment of the launch site produces wind loads on the launch vehicle, causing deformation or vibration of the launch vehicle structure, which affects the technical performance of the launch. Under extreme environmental wind speed conditions, the wind load determines the stability of the launch vehicle, and even determines the safety and reliability of missile launch. Studying the wind load characteristics of the launch vehicle under environmental wind speed conditions will help to optimize the reasonable aerodynamic layout of the various equipment of the launch vehicle, adjust the center of gravity of the launch vehicle, increase the stability of the launch vehicle, improve the adaptability of the launch vehicle to the environmental wind speed, and ensure the ex...

AI Technical Summary

Problems solved by technology

[0004] Different launch methods of missiles have great differences in the requirements for the launch vehicle. Correspondingly, the function and appearance design of the launch vehicle have also changed greatly, and the stiffness characteristics and center of gravity of the launch vehicle have also changed greatly, which brings many new possibilities to the installation of machinery or strain balances. The problem is that the shape and layout of the balance support frame even affect the test results in some cases, for example: the center of gravity of the box-type launch vehicle or the barrel-type launch vehicle is high and extremely rearward, and is often not located in the structural entity of the launch vehicle Among them, the size and installation position of the balance and its support frame will inevitably affect the test results and bring new difficulties to the calibration work

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