Ballistic design method for downstroke section with terminal angle and velocity constraints

Abstract

The invention particularly relates to a design method for a down-press section trajectory with terminal angle and speed constraints. The method comprises the steps of determining a down-press starting point; designing a down-press section attack angle; and calculating a trajectory. Firstly a reference gliding trajectory is designed, mechanical energy of a gliding maneuvering warhead corresponding to a starting moment of the down-press point is determined on the trajectory and defined as mechanical base energy E0, the mechanical energy of the down-press starting point of each trajectory is controlled to be near the mechanical base energy E0, and the starting point of the down-press point is determined; secondly the down-press section attack angle is designed by adopting an adaptive design method meeting the terminal angle constraint; thirdly, the down-press section trajectory is designed; and finally the trajectory is calculated, and all results can meet precision requirements. The method is simple and novel, is high in trajectory generation speed, and is very suitable for engineering application.

Description

technical field [0001] The invention belongs to the technical field of overall design of aerospace vehicles, and in particular relates to a ballistic design method for a down-pressure section with terminal angle and speed constraints. Background technique [0002] In order to carry out precise strikes on specific targets, gliding warheads generally have certain constraints on terminal speed and angle. At present, most of the theoretical studies on terminal angle and velocity constraints at home and abroad are devoted to guidance methods with terminal angle and velocity constraints. The research on the terminal guidance law method with terminal angle and velocity constraints is an emerging direction, which is still in the exploratory stage. However, most of the domestic engineering methods for downcompression section ballistic design with terminal angle and velocity constraints adopt the design method of iterative planning. The disadvantage is that the iteration speed is not...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems that the iteration speed of the design method using iterative planning in engineering design is not fast enough and the hardware requirements are too high, the present invention provides a ballistic design method specifically related to the downward pressure section with terminal angle and speed constraints. For gliding maneuvering warheads , the maneuvering section adopts a gliding ballistic trajectory in the shooting surface, and it is characterized in that the ballistic design method of the pressing section comprises the following steps:

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