Experimental motion assignment method for subject and detached body trajectory capture for continuous on-orbit motion

Abstract

The invention discloses a motion distribution method for track capture experiments of a main body and a separate body moving continuously on orbit. This method collects the current pose of the separated body model and the main body model at the current moment, obtains the theoretical pose of the separated body model and the main body model at the next time step, and calculates the relative position change distance in the X, Y, and Z directions; Quantitative proportion distribution of the movement of the main body and the separation body; control the main body and the separation body to complete the X, Y, Z movement and their respective angular movements, and reach the theoretical pose of the main body model and the separation body model at the next time step. This method can avoid the movement of the main mechanism and the separation body mechanism in the same direction, improve the utilization rate of the experimental space, obtain longer experiment time and more captured track points, and improve the service life of the main body mechanism and the separation body mechanism. The advantages of simple and fast, efficient and reliable operation.

Description

technical field [0001] The invention belongs to the technical field of hypersonic wind tunnel tests, and in particular relates to a motion distribution method for a track capture experiment of a main body and a separate body moving continuously on orbit. Background technique [0002] At present, research on aircraft, spacecraft, and flying weapons around the world is inseparable from wind tunnel experiments. Wind tunnel experiments are an effective way to analyze the aerodynamic characteristics of objects, study airflow laws, and study the aerodynamic interaction of adjacent aircraft. The wind tunnel experiment reduces the size of the aircraft, creates a stable hypersonic flow field, and obtains the most realistic and reliable aerodynamic data to verify the aerodynamic characteristics of the aircraft. [0003] The current wind tunnel experiments are not satisfied with only obtaining the aerodynamic characteristics of the aircraft in a fixed attitude, but also need to further...

AI Technical Summary

Problems solved by technology

Because the main body model and the separation body model are in the same flow field, it is very easy to produce the same direction movement, and the degrees of freedom of the main body and the separation body mechanism are limited, the main body or the separation body mechanism will be in a certain position of the main body model or the separation body model. Stop running when one degree of freedom reaches the limit. Obviously, the utilization of the experimental space is extremely low, and the number of captured trajectory points will be greatly reduced.

Images