Wind tunnel model passive vibration suppressor and method for confirming size of vibrator cantilever beam

A technology of vibration suppressor and cantilever beam, which is applied in the field of wind tunnel model passive vibration suppressor and vibrator cantilever beam size determination, vibration suppressor, can solve problems such as model shaking, achieve large design margin, facilitate promotion, and improve processing convenience effect

Pending Publication Date: 2019-12-20
AVIC SHENYANG AERODYNAMICS RES INST
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for determining the size of the passive vibration suppressor and vibrator cantilever beam of the wind tunnel model, so as to solve the problem of model shaking caused by the impact of the airflow during the start and stop of the wind tunnel model

Method used

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  • Wind tunnel model passive vibration suppressor and method for confirming size of vibrator cantilever beam
  • Wind tunnel model passive vibration suppressor and method for confirming size of vibrator cantilever beam
  • Wind tunnel model passive vibration suppressor and method for confirming size of vibrator cantilever beam

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Embodiment Construction

[0030] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] like Figure 1 to Figure 4 As shown, a wind tunnel model passive vibration suppressor according to the present invention includes a vibration suppressor casing 1, a vibration suppressor bottom cover 2, a vibration suppressor vibrator 3, a vibrator cantilever beam 4, a vibrator cantilever beam locking member 5 and a sealing Fastener 6;

[0032] The damper shell 1 is provided with a damper bottom cover 2, and a seal is provided between the damper bottom cover 2 and the damper shell 1, and the cavity formed by the damper shell 1 and the damper bottom cover 2 The inside is filled with damping fluid, one end of the vibrator cantilever beam 4 is connected to the bottom cover of the vibration suppressor 2 through the vibrator cantilever beam locking part 5, the other end of the vibrator cantilever beam 4 is connected to the vibration suppresso...

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Abstract

The invention relates to a wind tunnel model passive vibration suppressor and a method for confirming the size of a vibrator cantilever beam, and belongs to the technical field of aviation aerodynamicforce wind tunnel testing. The problem of model shaking generated by airflow impacting in the processes of wind tunnel starting and parking of a wind tunnel model is solved. A vibration suppressor bottom cover is arranged in a vibration suppressor outer shell. One end of the vibrator cantilever beam is connected with the vibration suppressor bottom cover through a vibrator cantilever beam lockingpart, and the other end of the vibrator cantilever beam is connected with a vibration suppressor vibrator. The vibration suppressor vibrator is located in the vibration suppressor outer shell and isin clearance fit with the inner wall of the vibration suppressor outer shell. Sealing fasteners are arranged at the bottom of the vibration suppressor vibrator. According to the wind tunnel model passive vibration suppressor and the method for confirming the size of the vibrator cantilever beam, forced vibration can be achieved at the assigned frequency, model vibration energy is absorbed, and themodel vibration amplitude is reduced.

Description

technical field [0001] The invention relates to a vibration suppressor, in particular to a wind tunnel model passive vibration suppressor and a method for determining the size of a vibrator cantilever beam, and belongs to the technical field of aviation aerodynamic wind tunnel tests. Background technique [0002] The wind tunnel model is the measured object of the wind tunnel force measurement experiment and the key technical node of the wind tunnel measurement experiment. The wind tunnel model oscillates during the wind tunnel test, especially when pitching, which seriously interferes with the accuracy of the wind tunnel test data. . For temporary wind tunnels, model vibrations caused by airflow shocks when the wind tunnel is running are unavoidable. In recent years, with the increase in the number of wind tunnel experiments for various types of new aircraft and the increasing technical requirements for the accuracy of wind tunnel model test data, various wind tunnel exper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/10G06F17/50
CPCF16F9/10
Inventor 赵世间袁晓晶刘昱王争取
Owner AVIC SHENYANG AERODYNAMICS RES INST
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