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Large-rolling-moment small-lateral-force scale

A lateral force and balance technology, applied in the field of wind tunnel testing, can solve the problems of large rolling moment and small balance, and it is difficult for the balance to meet the experimental requirements, so as to reduce the comprehensive stress and improve the sensitivity.

Pending Publication Date: 2018-10-26
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a balance with large rolling moment and small lateral force for the problem that the existing balance cannot meet the experimental requirements when the rolling moment of the balance is large and the lateral force is small in a high-speed wind tunnel.

Method used

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  • Large-rolling-moment small-lateral-force scale
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  • Large-rolling-moment small-lateral-force scale

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Embodiment 1

[0043] As shown in the figure, the balance with large rolling moment and small lateral force in this embodiment includes a front transition section, a front measuring beam, an axial force measuring element, a rear measuring beam, and a rear transition section connected in sequence.

[0044] Wherein, the axial force measuring element includes a first transition section in the middle, a front support beam group for the axial force, a measuring beam for the axial force, a rear support beam set for the axial force, and a second transition section in the middle. In this embodiment, the first transition section in the middle is the end of the front supporting beam group close to the front measuring beam for the axial force, the second transition section in the middle is the end of the rear supporting beam group close to the rear measuring beam for the axial force, and the axial force measuring beam It is arranged between the front supporting beam group of the axial force and the rear...

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Abstract

The invention discloses a large-rolling-moment small-lateral-force scale, belongs to the technical field of wind tunnel experiments and aims to solve the problem that existing scales are difficult inmeeting experiment requirements in high-speed wind tunnels when the scales are large in rolling moment and small in lateral force. The scale comprises a front transition section, a front measuring beam, an axial force measuring element, a rear measuring beam and a rear transition section, and the axial force measuring element comprises a middle first transition section, an axial force front supporting beam group, an axial force measuring beam, an axial force rear supporting beam group and a middle second transition section. Through brand-new design of scale elements, the scale meets requirements on experiment safety, lateral component has reasonable sensitivity, interference on output of the lateral component by rolling moment component Mx is reduced, and lateral component measuring accuracy of the scale is improved. The scale is ingenious in concept and reasonable in design and has high application value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of wind tunnel tests, in particular to a balance with large rolling moment and small lateral force. The present invention can be applied to wind tunnel balance design with large rolling moment and small lateral force. Applying the present invention to the balance can significantly improve the measurement accuracy of the lateral aerodynamic load of the balance under the premise of satisfying the test safety. the meaning of progress. Background technique [0002] The wind tunnel balance (referred to as the balance) is the most important measuring device in the force test, mainly used to measure the size, direction and action point of the aerodynamic load (force and moment) acting on the model. Currently, multi-component balances are usually used to meet the requirements of wind tunnel tests. On the other hand, test safety is the most important indicator in wind tunnel tests. The balance design is to optimize...

Claims

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Application Information

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IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 彭超刘大伟史玉杰米鹏田正波许新易国庆汪多炜庞超
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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