Modeling method and modeling device applied to high-altitude vehicle system

Abstract

The invention discloses a modeling method and a modeling device applied to a high-altitude vehicle system. The method comprises the following steps: simplifying a physical model of the high-altitude vehicle system to be a double-rigid-body system, wherein an aerostat and a pod are simplified to be one rigid body; determining generalized coordinates of the high-altitude vehicle system, wherein thegeneralized coordinates at least comprise attitude angle information of each rigid body in the high-altitude vehicle system; solving a lagrange function of the high-altitude vehicle system and building a lagrange equation; and determining the attitude angle information of each rigid body in the high-altitude vehicle system according to the built lagrange equation. The method and the device provided by the invention solve a technical problem that a result of modeling and simulation for the high-altitude vehicle system has larger error relative to actual conditions in the related technologies.

Description

technical field [0001] The invention relates to the field of simulation modeling and analysis, in particular to a modeling method and device applied to high-altitude aircraft systems. Background technique [0002] The high-altitude aircraft system includes an aerostat and a pod flexibly connected to the aerostat. The aerostat can be a balloon, an airship, etc., and the pod is usually a load compartment. The aerostat and the pod are usually connected by a rotary connector or a system. Rope and other spherical hinge connections. In the design and flight process of the high-altitude aircraft system, the dynamic model of the high-altitude aircraft system is the focus and basis of the control system design, and the dynamic performance determines the performance indicators that the high-altitude aircraft system can achieve. At present, when modeling the high-altitude aircraft system, the aerostat and the pod are usually regarded as a whole, and the classical Newtonian mechanics m...

AI Technical Summary

Problems solved by technology

The existing modeling methods cannot reflect the characteristics of the separation of the attitude of the balloon and the attitude of the payload cabin, and cannot obtain the attitude angle information of the payload cabin for sightseeing, and cannot effectively analyze the dynamic coupling between the payload cabin and the balloon

[0003] For the above-mentioned technical problems, no effective solution has been proposed yet

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