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Motion model driving method based on four elements

A motion model and driving method technology, applied in simulators, instruments, control/regulation systems, etc., can solve the problems of short solution step length, high running frequency of simulation system, and high occupancy rate of computing resources

Active Publication Date: 2020-10-30
中国人民解放军92941部队 +1
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Problems solved by technology

The existing commonly used motion model driving methods: the three-degree-of-freedom system method can only describe the translation of the platform entity, or the movement of the platform entity’s center of mass, and lacks information related to attitude; while the six-degree-of-freedom system method uses the platform entity The ratio of the external action (including force and moment) and the inertia of the platform entity (including mass and inertia moment) to represent the movement trend of the platform entity requires a high operating frequency of the simulation system, a short solution step, and a high occupancy rate of computing resources

Method used

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  • Motion model driving method based on four elements
  • Motion model driving method based on four elements
  • Motion model driving method based on four elements

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Embodiment Construction

[0084] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0085] Based on the four-element motion model-driven method, the simulation of the platform entity motion is realized using the performance data and the three-degree-of-freedom dynamics method. The flow chart of the present invention is as figure 1 shown.

[0086] The present invention realizes steps as follows:

[0087] Step 1: Describe the motion characteristics of the physical platform. The description method is based on the description method of performance data, which requires about twenty data;

[0088] Step 2: Establish the physical platform motion model. The motion model of the solid platform is a three-degree-of-freedom particle motion model, including dynamic equations and kinematic equations, and the kinematic equations also include longitude and latitude equations;

[0089] Step 3: Realize the basic controller of the physical platform....

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Abstract

The invention provides a motion model driving method based on four elements, which comprises the steps of constructing characteristic information of a platform entity based on performance data, establishing a platform entity driving control instruction model, establishing a platform entity kinetic equation, establishing a platform entity kinematics equation, and obtaining motion state informationof the platform entity at the current simulation time through modeling calculation. According to the invention, a lot of data requirements of aerodynamic force, engines, inertia moments, control systems and the like are avoided; and the control system is very simple and convenient to calculate.

Description

technical field [0001] The invention relates to the field of modeling and simulation work, in particular to a motion model driving method. Background technique [0002] Platform entities refer to system types including fixed-wing aircraft, helicopters, ground platform entities, amphibious entity platforms, ships, etc. The existing commonly used motion model driving methods: the three-degree-of-freedom system method can only describe the translation of the platform entity, or the movement of the platform entity’s center of mass, and lacks information related to attitude; while the six-degree-of-freedom system method uses the platform entity The ratio of the external action (including force and moment) and the inertia of the platform entity (including mass and inertia moment) to represent the movement trend of the platform entity requires a high operating frequency of the simulation system, a short solution step, and a high occupancy rate of computing resources . Contents o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02Y02T90/00
Inventor 孙健王志佳许文腾郭小威李晓斌阳贵兵朱惠民牛建钊程翔王利华张绍泽吴静郭美杉
Owner 中国人民解放军92941部队
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