概念设计中可重构航天器动特性快速预示方法

为解决概念设计中可重构航天器结构动特性快速评估问题，考虑接触、摩擦等因素影响，提出一种动特性快速预示方法。该方法针对典型可重构航天器特点，处理流程包括动特性分析与辨识、基于虚拟材料的模型等效及等效参数估计，实现了精细化模型的等效替代。仿真校验中，利用本文方法对构型设计方案进行了预示，在所得结果能较为准确反映结构动特性的前提下，有效提高了分析效率。该方法能够保障可重构航天器概念设计工作，并为构型方案的设计迭代与优化提供实现基础。

A Rapid Dynamic Characteristics Predicting Method ofReconfigurable Spacecraft in Conceptual Design

To solve the problems of the reconfigurable spacecraftstructural dynamic characteristics rapid evaluation considering contact andfriction in conceptual design, a rapid predicting method is proposed. Based onthe features of a typical reconfigurable spacecraft, the method uses theanalysis and identification of dynamic characteristics, model equivalence basedon virtual material, and estimation of equivalence data to form the processingflow, and realizes the equivalence of refined model. In the simulationverification, the proposed method is used to predict the structural dynamiccharacteristics of a conceptual design scheme, and under the premise ofaccuracy, the efficiency of analysis is improved. The results indicate that theproposed method can support the conceptual design and provide foundation forthe iteration and optimization design of reconfigurable spacecraft.