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Spacecraft solar panel three-dimensional dynamic simulation method taking shielding effect into consideration

A technology of a solar sail panel and a simulation method, which is applied in the field of solar sail panel power calculation and three-dimensional dynamic simulation, can solve the problems of inaccurate estimation of power generation efficiency, complex analysis tasks, etc., and achieves reduction of physical risks, development costs, and good interactivity. , Realistic effect

Active Publication Date: 2015-05-13
HARBIN INST OF TECH
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  • Summary
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a three-dimensional dynamic simulation method for spacecraft solar panels considering the shading effect, so as to solve the complex analysis task of the shading situation generated by existing satellite orbits and large-scale institutions, resulting in inaccurate estimation of power generation efficiency The problem

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  • Spacecraft solar panel three-dimensional dynamic simulation method taking shielding effect into consideration
  • Spacecraft solar panel three-dimensional dynamic simulation method taking shielding effect into consideration
  • Spacecraft solar panel three-dimensional dynamic simulation method taking shielding effect into consideration

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specific Embodiment approach 1

[0023] Specific implementation mode one: the following combination figure 1 , figure 2 To illustrate this embodiment, the three-dimensional dynamic simulation method for spacecraft solar panels considering the shading effect described in this embodiment includes the following steps:

[0024] Step 1. Build the implementation environment: use Qt to build the human-computer interaction interface;

[0025] The realization of Qt and OSG is based on C++, combined with Qt and OSG 3D rendering engine to build the realization environment. C++ is used for basic language implementation and occlusion algorithm calculation, and Qt is used to build the system platform and related interfaces. Taking full advantage of Qt's open source characteristics, it uses its rich API classes and unique and safe signals / slots technology to design a humanized man-machine The interactive interface interface makes the interface beautiful and simple, and the operation is easy to understand; OSG virtual rea...

specific Embodiment approach 2

[0033] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the specific process of the three-dimensional virtual modeling of the spacecraft described in step two is:

[0034] The 3D virtual scene simulation is a 3D simulation of the spacecraft body, solar panels, shading mechanism, the earth, and space. Through the 3D model, the real appearance of the spacecraft body, solar panels and shading mechanism can be clearly seen, and the model Interference checks are performed on each part in to see if the assembly is successful.

[0035] The three-dimensional virtual modeling includes model modeling and scene modeling, wherein the specific method of model modeling is as follows:

[0036] Step 21, according to the actual size of the spacecraft body, solar panels and shading mechanism, use 3DS MAX to reconstruct the corresponding virtual three-dimensional object entity;

[0037] Step 22: Use 3D MAX to add DOF (degree of freedom) nodes to th...

specific Embodiment approach 3

[0049] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the real-time display of the spacecraft body, solar panels, and antennas described in step three is as follows:

[0050] In the frame loop in the VC++ working thread, the orbital parameters of the spacecraft, the parameters of the solar sail and the rotation of the antenna are updated, and these data are used to drive the spacecraft movement, the shading mechanism and the rotation of the solar sail in real time through the OSG thread. The described real-time driving method is as follows: In each frame of the simulation, update the spacecraft motion parameter value through the OSG thread, and use these values ​​to set the spacecraft position through the OSG callback function, so as to realize real-time display;

[0051] The orbital parameters of the spacecraft include: the major radius α of the elliptical orbit, the eccentricity e, the orbital inclination of the spacec...

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Abstract

The invention discloses a spacecraft solar panel three-dimensional dynamic simulation method taking a shielding effect into consideration, belongs to the technical field of computer simulation, and solves the problems that the power generating efficiency is estimated inaccurately caused by complex analyzing tasks of the existing shielding situations generated by a satellite orbit and a large-scale mechanism. According to the technical main points, the method comprises the following steps: building a realization environment; performing three-dimensional virtual modeling on a spacecraft; displaying a spacecraft body, a solar panel and an antenna in real time; calculating a sheltering matrix through a shadow shielding algorithm; performing visual rendering based on solar panel shadow of shading language; performing multi-view-angle interactive three-dimensional roaming; displaying the power and a temperature curve of the solar panel in real time. According to the method, the analyzing tasks of the shielding situations generated by the satellite orbit and the large-scale mechanism are realized, the power generating power of solar batteries is calculated according to a shielding analysis result, and the number of the solar batteries is designed reasonably.

Description

technical field [0001] The invention relates to a method for calculating the power of a solar sail panel and a three-dimensional dynamic simulation method, in particular to a three-dimensional dynamic simulation method for analyzing and displaying the shielding situation of a solar sail panel of a spacecraft, estimating power generation efficiency, and estimating the temperature of the sail panel, belonging to a computer Simulation technology field. Background technique [0002] The application of 3D computer simulation involves various aspects such as games, product display, virtual manufacturing and assembly, and aerospace simulation. Simulation visualization has become an important auxiliary means for researchers to develop simulation systems and carry out simulation experiments. [0003] Solar arrays are the energy providers for many spacecraft. When the solar cell array is completely or partially shaded, its output power will be greatly affected. Therefore, when desig...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 魏承赵文锐马超刘昊鄂薇王通明袁丽丽焦荣慧贠磊
Owner HARBIN INST OF TECH
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