A Segmented Micro Hinge Moment Balance

Abstract

The invention discloses a segmented micro-hinge moment balance, which belongs to the technical field of aerodynamic force measurement in aerospace dynamometer tests. The segmented micro-hinge moment balance is an all-steel composite structure, including a measuring device and a heat insulation device , Composed of limit protection devices. The measuring device includes a single-component balance and a six-component rod balance, the central axis of the single-component balance is perpendicular to the central axis of the six-component rod balance, and the single-component balance is fixed at the free end of the six-component rod balance. To measure the tiny hinge moment, use the six-component rod balance to measure all the aerodynamic forces on the rudder surface to correct the interference of other aerodynamic forces on the tiny hinge moment, so as to improve the resolution and accuracy of the measurement. The heat insulation device is arranged outside the measuring device, which enhances the heat-proof and heat-insulating performance of the measuring device, reduces the temperature effect, and improves the measurement accuracy of the micro hinge moment in the wind tunnel test under the condition of high Mach number.

Description

technical field [0001] The invention belongs to the technical field of aerodynamic force measurement for aerospace dynamometer tests. Aiming at the hinge moment wind tunnel dynamometer test of a hypersonic aircraft model, a segmented micro hinge moment balance is used to control the full motion rudder model at high speed. Trace hinge moment measurement at Mach number to obtain high-precision and accurate aerodynamic measurement results. Background technique [0002] The hinge moment measurement test is a basic wind tunnel force test item. With the development of my country's aerospace industry, the requirements for wind tunnel test technology are increasing. As a key wind tunnel test technology, the trace hinge moment measurement technology is widely used in the research of model model aerodynamic characteristics and the measurement of key control parameters. The trace hinge moment Balance research is an important support for micro hinge moment test technology. [0003] The...

AI Technical Summary

Problems solved by technology

[0007] Limited by the size of the model space, the commonly used hinge moment balance cannot adopt the water-cooled heat-proof structure of the conventional force-measuring test balance, resulting in a very harsh working environment for the balance. The impact cannot be ignored

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