卫星动量轮轴承组件的仿真可信度评估

Simulation credibility evaluation of the momentum wheel bearing subassembly in the satellite

研究了某一卫星的动量轮轴承组件仿真的可信度评估,基于仿真系统与物理试验系统的相似度与仿真可信度之间的关系,采用计算仿真与物理试验输出的相似度评估仿真可信度.确定了动量轮轴承组件仿真与试验输出的相似元,构建了量化其相似系数的函数.对于基于三角模糊数的层次分析法确定各要素影响权重的计算进行了改进.最后应用该方法对某一卫星动量轮轴承组件实例的可信度进行了度量.

The paper discussed the credibility evaluation of the momentum wheel bearing subassembly in a satellite. The simulation credibility evaluation was conducted by calculating the similarity between the simulation output and physical experimental output, which was based on the relationship between the credibility and the similarity. Similarity elements between simulation output and physical experimental output were determined, and a quantitative function was constructed. Then, the paper improved the computational methods of analytic hierarchy process （AHP） that was used to determine the weight of elements. Consequently, the simulation credibility of a momentum wheel bearing subassembly was evaluated through the method.