A device and method for constructing a solid rocket ground test free boundary

Abstract

The invention relates to a solid rocket ground test free boundary construction device. The solid rocket ground test free boundary construction device comprises a rocket product and a state monitoringinstrument, and is characterized in that the solid rocket ground test free boundary construction device further comprises a product bracket trolley, a gas source, a bag type gas pillow, an additionalgas chamber and a product dimension tool; the rocket product is carried by the product bracket trolley; the gas source provides air pressure for the bag type gas pillow; the product dimension tool isdesigned according to the external size of a rocket structure, the upper portion is used for being attached to the bearing portion of the outer surface for surface contact, and the bottom is connectedwith the bag type gas pillow by a flange; the upper portion of the additional gas chamber is connected with the bag type gas pillow by a flange, and the bottom is fixedly connected with the ground; and the state monitoring instrument is installed on the product dimension tool. The solid rocket ground test free boundary construction device is not limited by a test field. A bag-type gas pillow suspension system can be built quickly to simulate the freedom-freedom boundary of a product when a rocket body horizontal bracket vehicle is in a parking state.

Description

technical field [0001] The invention is applied to the field of ground tests of large-scale structures such as solid launch vehicles and strategic / tactical missiles, and can simulate the free boundary of products during flight, and specifically relates to a device and method for quickly constructing a free boundary of ground tests. Background technique [0002] Launch vehicles, missiles and other aircraft need to carry out a large number of ground tests in the development stage. Among them, important tests at the full arrow / projectile level include modal tests, separation tests, and servo elasticity tests. Some of these ground tests need to simulate the free-free state of the rocket / missile flying in the air to satisfy the reality of the test boundary conditions. [0003] At present, the ground tests of full arrows / projectiles in the free-free state at home and abroad are mainly carried out by building a load-bearing gantry or directly in the suspension system in the vibrat...

AI Technical Summary

Problems solved by technology

Due to the large size and weight of launch vehicles, missiles and other aircraft, if the method of building a gantry or entering a vibrating tower is used, it will cost a lot of manpower and material resources to set up the platform, design tooling, design the suspension system, check the strength, and change the state, etc.; And more and more products require rapid testing to obtain valid data and sample inspection of product status without leaving the factory building. Therefore, there are certain disadvantages in adopting the traditional method of building a gantry or entering a test station.

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