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Parameterization simulation method of lunar probe soft landing dynamics

A parametric simulation and detector technology, applied in the field of deep space exploration, can solve problems such as design efficiency, achieve the effect of optimizing design, avoiding duplication of labor, and solving design efficiency problems

Inactive Publication Date: 2014-03-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] In order to solve the problem of design efficiency in the dynamic analysis of the soft landing process of the lunar probe in the prior art, the present invention proposes a parametric simulation method for the soft landing dynamics of the lunar probe

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  • Parameterization simulation method of lunar probe soft landing dynamics
  • Parameterization simulation method of lunar probe soft landing dynamics
  • Parameterization simulation method of lunar probe soft landing dynamics

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Embodiment Construction

[0026] The content of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0027] Step 1: Simplify the lunar rover model.

[0028] The lunar probe carries a variety of payloads, and the model is very complex, involving a variety of geometric dimensions. Therefore, before performing parametric simulation, the present invention first simplifies the physical model of the detector: the fundamental purpose of the soft landing dynamic response analysis of the detector is to obtain the mechanical environment of the payload on the detector, thereby formulating the vibration test of the landing stage. condition. The mechanical environment of the payload is generally measured by the shock response spectrum, so the physical quantity that needs to be obtained is the acceleration response at the payload base (that is, its installation position on the deck). Considering that the mass of the payload (radar, camera, anten...

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Abstract

The invention relates to a parameterization simulation method of lunar probe soft landing dynamics, and belongs to the technical field of deep space exploration. The method integrates finite element modeling, solving calculating and result post-processing, finite element models of all components (including a center body, a fuel storage box, a lunar rover, buffering pillars and a foot pad) of a probe can be generated, and assembly, working condition setting, solving calculating and result extracting can be finished automatically. By means of the method, automatic establishing of a parameterization model of the lunar probe soft landing dynamics is realized, re-handling brought to designing personnel by re-meshing and component connection relationship re-setting which are caused by the fact that a certain characteristic is changed in the finite element modeling process of the lunar probe is avoided, and the problem of designing efficiency in the dynamics analysis of the lunar probe soft landing process in the prior art is solved.

Description

technical field [0001] The invention relates to a parameterized simulation method for the soft landing dynamics of a lunar probe, and belongs to the technical field of deep space exploration. Background technique [0002] my country is currently conducting the development and experimentation of the second and third phases of lunar exploration. The moon soft landing technology is a key technology of my country's lunar exploration project. In order to ensure the safety of the equipment and personnel on the probe, make the probe land on the surface of the moon smoothly and smoothly, and prevent the lander from being overloaded or dumped, it is necessary to carry out strict dynamic analysis and research on the soft landing process on the moon. [0003] The dynamics of the soft landing process of the lunar probe is to study the dynamic process from the moment when the engine of the lunar lander is turned off and free fall to the contact between the lander and the lunar surface u...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘莉周思达董威利杨武陈树霖张南富
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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