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Hypersonic flight vehicle jump gliding trajectory analysis and solution method

A hypersonic, gliding ballistic technology, applied in the field of aerospace technology and weapons, can solve the problems of nonlinearity and coupling of system equations, and the difficulty of jumping and gliding ballistics.

Active Publication Date: 2019-08-20
BEIHANG UNIV
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Problems solved by technology

However, since the inclination angle and its derivative of the jump-glide trajectory cannot be approximately zero like the smooth gliding trajectory, the nonlinearity and coupling of the system equations are very strong, and it is very difficult to solve the analytical solution of the jump-glide trajectory

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Embodiment Construction

[0128] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0129] The embodiment of the present invention discloses a hypersonic vehicle jump glide ballistic analytical solution method, such as figure 1 , mainly includes the following steps: step 1 establishes the motion model, step 2 establishes the auxiliary inertial coordinate system (AGI) and the motion model under the AGI coordinate system, step 3 solves the equivalent horizontal and vertical lift-drag ratio in the AGI coordinate system, step 4 Solve the analytic...

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Abstract

The invention discloses a hypersonic flight vehicle jumping gliding trajectory analysis and solution method. The hypersonic flight vehicle jumping gliding trajectory analysis solution under the GER coordinate system is converted into the solution of the hypersonic flight vehicle jumping gliding trajectory analysis under the AGI coordinate system; and then the analytic solution under the AGI coordinate system is resloved into a GER coordinate system to obtain a high-precision analytic solution of the longitudinal range, the transverse range, the speed, the height and the trajectory inclinationangle of the hypersonic flight vehicle jumping gliding trajectory, thereby providing support for rapid trajectory planning and trajectory forecasting.

Description

technical field [0001] The invention relates to the fields of aerospace technology and weapon technology, and more specifically relates to an analytical solution method for a jump-glide trajectory of a hypersonic vehicle. Background technique [0002] Since the 1960s, because hypersonic vehicles have the advantages of long range, fast speed, strong maneuverability, and strong penetration capabilities, hypersonic technology has been extensively and in-depth researched. is one of the key technologies. Although with the improvement of the performance of the missile-borne computer, the high-precision numerical solution of the optimal re-entry trajectory has been obtained, but it is often accompanied by a huge amount of calculation, especially when real-time correction and iterative solution to the optimal solution are required. The performance requirements of the missile-borne computer are relatively high, and it is difficult to be applied to online ballistic forecast, trajecto...

Claims

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Application Information

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IPC IPC(8): G06F17/11
CPCG06F17/11
Inventor 陈万春赵鹏雷余文斌
Owner BEIHANG UNIV
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