Determination method for influence on star catalogue device by 10-N thruster plume

A thruster and equipment technology, which is applied in the field of determination of the influence of 10N thruster plume on the temperature of star surface equipment, can solve the problems of many iterations and long analysis period, and achieve many iterations, simplified design links and long design period Effect

Active Publication Date: 2013-07-24
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

The disadvantage of using this method is that the nu...

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  • Determination method for influence on star catalogue device by 10-N thruster plume
  • Determination method for influence on star catalogue device by 10-N thruster plume
  • Determination method for influence on star catalogue device by 10-N thruster plume

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Embodiment Construction

[0015] The method of the present invention will be further described below.

[0016] (1) According to the installation position of the 10N thruster and the installation position of the equipment affected by the plume heat flow to be analyzed, determine the area affected by the plume on the equipment; measure and obtain the plume-affected area on the equipment affected by the plume heat flow to be analyzed The distance r between the point to be analyzed and the center of the nozzle of the 10N thruster in the region, the angle θ between the line between the point to be analyzed and the nozzle of the 10N thruster and the axis of the thruster, the line between the point to be analyzed and the nozzle of the 10N thruster and the characteristic point surface method The angle β between the lines.

[0017] (2) Calculate the plume heat flux density of the points to be analyzed in the area affected by the plume on the affected equipment using the calculation formula provided in "Using 10...

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Abstract

A determination method for influence on a star catalogue device by 10-N thruster plume can rapidly calculate steady state temperature of the influenced device based on the foundation of analyzing thermal flux density of the device influenced by the 10-N thruster plume and combined with a working duty ratio of a 10-N thruster and thermal characteristics and surface geometric characteristics of the influenced device. The determination method for the influence on the star catalogue device by the 10-N thruster plume is specially suitable for a medium and high orbit satellite with the 10-N thruster serving as an actuating mechanism, the influence on the device by the temperature of the plume can be estimated and determined in the process of satellite configuration layout design, and references are offered for layout adjustment or thermal protection design of the influenced device.

Description

technical field [0001] The invention is used in the satellite configuration layout process to analyze the influence of the thermal effect of the plume field of the 10N thruster, and is suitable for the configuration layout design of the middle and high orbit satellites adopting the 10N thruster. Background technique [0002] The plume refers to the airflow ejected by the satellite engine when it is working under high vacuum. It is shaped like a feather at the nozzle, so it is called the plume. The composition of the plume is complex, including molecular pollutants and particle pollutants (such as incompletely burned fuel droplets, particles on the wall of the combustion chamber, etc.). In the environment of space, the ejected gas will expand rapidly, become thinner and thinner, and can extend a long distance. The influence of the plume includes the disturbance torque, thermal effect and pollution effect that the plume may cause. More fuel is consumed, and even the posture ...

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Application Information

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IPC IPC(8): G01M9/00
Inventor 武向军谭沧海王金刚丛飞李长江杨慧
Owner BEIJING INST OF SPACECRAFT SYST ENG
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