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Calibration device and calibration method for rod type balance

A technology of balance calibration and rod type, which is applied in the field of aerospace testing and can solve problems such as long time intervals

Pending Publication Date: 2019-01-18
中国空气动力研究与发展中心超高速空气动力研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Balance calibration time and wind tunnel dynamometric test time do not always coincide, there may be long time intervals

Method used

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  • Calibration device and calibration method for rod type balance
  • Calibration device and calibration method for rod type balance
  • Calibration device and calibration method for rod type balance

Examples

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0043] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0044] Figure 1-9 A rod balance calibrating device is shown, comprising:

[0045] Calibration support 1, which is detachably connected to the optical platform;

[0046] Calibrate the lower bracket 2, which is vertical and detachably connected to the calibration support 1;

[0047] Calibrate the upper bracket 3, which is positioned with the calibration lower bracket 2 through positioning pins, and is detachably connected with the calibration lower bracket 2;

[0048] Rod-type balance 4, the straight section 41 of its tail cooperates with the round hole 31 of the calibration up...

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PUM

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Abstract

The invention discloses a calibration device and a calibration method for a rod type balance. The device comprises a calibration support, a calibration lower bracket, a calibration upper bracket, therod type balance, a loading sleeve, loading rings, an axial force loading disc, and pallets. The calibration support is connected to an optical bench. The calibration lower bracket is connected to thecalibration support. The calibration upper bracket is positioned by the calibration lower bracket by a round pin, and is tightened by a screw. The straight section such as the tail of the rod type balance is matched with a circular hole of the calibration upper bracket. The rod type balance is circumferentially positioned by a square key I, and is tightened by a nut I. The loading sleeve is matched with the taper of the front end of the rod type balance, and adopts a square key II to perform circumferential positioning on the rod type balance. The rod type balance is tightened by a nut II. The loading rings used in pairs are fixed to one whole ring by bolts, and are matched with the keys on the loading sleeve for circumferential positioning. The axial force loading disc is fixed on the loading sleeve, and can place weights to load an axial force in the vertical state of the balance. The pallets are fixed on the loading rings by detachable hinges, and can place the weights to load a normal force / pitching moment, a lateral force / yaw moment, and a rolling moment.

Description

technical field [0001] The invention belongs to the technical field of aerospace testing, and in particular relates to a rod-type balance calibration device and a calibration method, which are simple to operate, can quickly realize unit loading and comprehensive loading of a six-component rod-type balance, and obtain a balance calibration formula and its accuracy. Background technique [0002] The rod strain balance is an important force measuring device in the wind tunnel test. In order to accurately measure the aerodynamic load on the aircraft model in the wind tunnel test, the working formula of the rod strain balance must be obtained before the test, that is, the static calibration of the balance is required. The static calibration of the balance is usually carried out on the balance calibration rack. Through the loading point set on the calibration rack, the accurate six-component load is applied, and the functional relationship between the signal output of the balance a...

Claims

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Application Information

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IPC IPC(8): G01M9/06
CPCG01M9/062
Inventor 闵夫杨彦广李绪国邱华诚皮兴才冯双李杰毛春满龙正义
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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