Reusable launch wind tunnel test weapon model

Abstract

The invention belongs to the technical field of wind tunnel tests and relates to a reusable launch wind tunnel test weapon model. The model comprises a bomb head (1), a bomb body (2) and a bomb tail (3). The bomb head (1) and the bomb tail (3) are detachably connected to two ends of the bomb body (2) respectively. A front fixed balancing weight (4) is arranged in the bomb head (1), a rear fixed balancing weight (5) is arranged in the bomb tail (3), the bomb body (2) is a hollow cylinder structure and is internally provided with a lead screw (10), and the lead screw (10) is sleeved with a movable balancing weight capable of moving along an axis of the lead screw. A structural mode with the combination of the fixed balancing weight and the movable balancing weight is adopted, so that the quality characteristic of a model is ensured in design, after machining is completed, no additional balancing weight needs to be added, only the fine adjustment of a movable adjusting block is needed toguarantee the position of a gravity center, in practical application, a test can be completed only by machining 2 to 3 launch weapon models, compared with the prior art, the machining amount and quality characteristic adjusting periods are shortened by 90% or above, and the machining difficulty is reduced.

Description

technical field [0001] The application belongs to the technical field of wind tunnel tests, in particular to a reusable weapon model for launching wind tunnel tests. Background technique [0002] Dropping wind tunnel test is one of the main methods to study the safety of aircraft bombing. The weapon models used in the current launch wind tunnel test are all disposable items. The structural design idea is to use light materials such as plastic to form the shell. The quality characteristics of the model are repeatedly adjusted by using various counterweights inside the model. It is broken and easy to loosen, and it will basically be damaged after each launch. Each test needs to consume dozens or even hundreds of weapon models, resulting in a large amount of model processing, a long processing cycle, high cost, and difficult processing. Contents of the invention [0003] In order to solve the above problems, this application provides a reusable weapon model for launching win...

AI Technical Summary

Problems solved by technology

The weapon models used in the current launch wind tunnel test are all disposable items. The structural design idea is to use light materials such as plastic to form the shell. The quality characteristics of the model are repeatedly adjusted by using various counterweights inside the model. It is broken and easy to loose, and will basically be damaged after each launch. Each test needs to consume dozens or even hundreds of weapon models, resulting in a large amount of model processing, long processing cycle, high cost, and difficult processing.

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