Method and device for obtaining buffeting characteristics by using static force measurement test model
The invention belongs to the technical field of aerodynamic design of airplanes, and particularly relates to a method and a device for acquiring buffeting characteristics by using a static force measurement test model. The method comprises the following steps: S1, controlling an airplane model to re...
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creator | SUN YINGDAN ZHOU JILIANG YANG DEMIN WANG MUGUO GUO CANSHENG |
description | The invention belongs to the technical field of aerodynamic design of airplanes, and particularly relates to a method and a device for acquiring buffeting characteristics by using a static force measurement test model. The method comprises the following steps: S1, controlling an airplane model to reach a specified attack angle attitude in a wind tunnel flow field within a specified attack angle change range according to a set step length; s2, after the wind tunnel flow field is stabilized, collecting aerodynamic force borne by a strain balance used for measuring the aerodynamic force on the airplane model; s3, calculating the root mean square of the pulsating quantity of the pitch moment coefficient according to the collection result; s4, based on an accelerometer arranged at the nose position of the airplane model, determining the acceleration of the nose position of the airplane model; and S5, determining the buffeting intensity of the specified attack angle attitude according to the root mean square of the |
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The method comprises the following steps: S1, controlling an airplane model to reach a specified attack angle attitude in a wind tunnel flow field within a specified attack angle change range according to a set step length; s2, after the wind tunnel flow field is stabilized, collecting aerodynamic force borne by a strain balance used for measuring the aerodynamic force on the airplane model; s3, calculating the root mean square of the pulsating quantity of the pitch moment coefficient according to the collection result; s4, based on an accelerometer arranged at the nose position of the airplane model, determining the acceleration of the nose position of the airplane model; and S5, determining the buffeting intensity of the specified attack angle attitude according to the root mean square of the</abstract><oa>free_for_read</oa></addata></record> |
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subjects | MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR |
title | Method and device for obtaining buffeting characteristics by using static force measurement test model |
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