Unlock instant, AI-driven research and patent intelligence for your innovation.

Dynamitic control and measurement method

A measurement method and dynamic control technology, which is applied in the field of aviation aerodynamics measurement, can solve the problems of unacceptable cost of precise test and long cycle of wind tunnel test, and achieve the effect of saving test cost, improving utilization efficiency and increasing available time

Inactive Publication Date: 2015-04-01
黎星佐
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wind tunnel test period of this static measurement method in the prior art is very long, and repeated blowing is required. The cost of precise testing is basically unacceptable, and an approximate value can only be obtained by interpolation calculation after a limited number of tests.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dynamitic control and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.

[0022] figure 1 Shown is a model demonstration schematic diagram of dynamically controlling and measuring the angle of attack and rudder deflection angle of an aircraft model in a wind tunnel test according to a specific embodiment of the present invention. As shown in the figure, the aircraft model 3 of the present invention is supported in the wind tunnel 2 by a controllable support system 1. What needs to be measured is when the aircraft model 3 reaches the set overload G from level flight to pull-up, the weight of the aircraft model 3 Angle of attack and rudder deflection.

[0023] Because what the present invention needs to measure is the angle of attack and the de...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a dynamitic control and measurement method which is used for a wind tunnel test. An attack angle and a control plane deflection angle of an airplane model supported in a wind tunnel by a controllable support system are measured from flat flight to pull-up to overload G. According to the dynamitic control and measurement method, a real-time dynamitic control and measurement manner is adopted, the angle of attack and the control plane deflection angle of the airplane model are dynamically controlled and adjusted in real time by means of the support system and a steering engine, so that the wind tunnel blowing test can be completed once from beginning to end with the method, time for the wind tunnel test is far shorter than that of a static test in the prior art, the test cost is greatly saved, the available time of wind tunnel resources is greatly prolonged, and the equipment utilization efficiency is improved.

Description

technical field [0001] The invention relates to an aviation aerodynamic measurement method, in particular to a method for dynamically controlling and measuring the attack angle and rudder surface deflection angle of the aircraft model during the wind tunnel test of the aircraft model. Background technique [0002] The wind tunnel test is based on the principle of aerodynamics, fixing the aircraft model or its parts, such as the fuselage, wings, etc. Flight status, get test data. The wind tunnel is the most basic test equipment for aerodynamic research and aircraft development. The development of each new type of aircraft requires a large number of tests in the wind tunnel. The main purpose of the wind tunnel test is to obtain the variation law of various aerodynamic parameters of the aircraft model. To evaluate the flight performance of each aircraft, in addition to factors such as speed, altitude, aircraft weight and engine thrust, one of the most important criteria is th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
Inventor 黎星佐
Owner 黎星佐