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Method for thermal radiation force modeling of navigation satellite complex model

A technology for navigation satellites and thermal radiation, which is applied to integrated navigators, special data processing applications, instruments, etc., and can solve problems such as lack of accurate modeling of satellite thermal radiation forces

Active Publication Date: 2014-01-01
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

At present, there is no published research on the accurate modeling of the satellite's own thermal radiation force at home and abroad.

Method used

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  • Method for thermal radiation force modeling of navigation satellite complex model
  • Method for thermal radiation force modeling of navigation satellite complex model
  • Method for thermal radiation force modeling of navigation satellite complex model

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[0055] Example: The temperature distribution of each surface component is divided into different temperature bins, denoted as T ij , represents the temperature of the jth panel of the i-th component, j is 1 to M, and the corresponding panel area is A ij , Figure 4 Schematic diagram representing the temperature panel distribution of the satellite box panel and the solar panel.

[0056] For case 1, take the floor as an example, denoted as part 1: first determine the environment where the satellite is located, sunshine area: θ EPS ≤90°Part 1 is exposed to sunlight, θ EPS >90° Component 1 is not exposed to sunlight, the entire star in the penumbra area is partially illuminated, and the entire star in the umbra area is not exposed to sunlight. Select the temperature data input of the component according to different lighting conditions.

[0057] F z = F thermal = - ...

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Abstract

The invention discloses a method for thermal radiation force modeling of a navigation satellite complex model. The method comprises the steps of establishing a data information base of surface components generating thermal radiation force by obtaining a surface three-dimensional model of a to-be-analyzed satellite; analyzing thermal radiation force of the working conditions of the components under a body coordinate system, and calculating the thermal radiation force and thermal radiation force acceleration by vector synthesis of the thermal radiation force of the surface components so as to establish a mathematical model of the thermal radiation force and the thermal radiation force acceleration. The high-precision thermal radiation force model can be established through the modeling method, and the thermal radiation force serving as non-conservative force can improve a kinetic model of the high-precision satellite and further improve orbit determination precision and orbit prediction precision.

Description

technical field [0001] The invention relates to a thermal radiation force modeling method, in particular to a thermal radiation force modeling method for a complex model of a navigation satellite, and belongs to the technical field of aircraft design. Background technique [0002] With the improvement of precision orbit determination and orbit prediction accuracy requirements of navigation satellites, the establishment of accurate satellite dynamics models has become an engineering need. Optical pressure perturbation is the main error source of current navigation satellites, and its accuracy directly affects the precise orbit determination and orbit prediction of satellites. The perturbation sources that conform to the light pressure perturbation mechanism include sunlight, the satellite's own thermal radiation, and the Earth's return light. At present, there is no published research on the accurate modeling of the satellite's own thermal radiation force at home and abroad....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F19/00G01C21/24
Inventor 陈秋丽陈忠贵王海红
Owner BEIJING INST OF SPACECRAFT SYST ENG
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