关键词: 质量质心, 质心误差, 误差分析

Abstract: This article is concerned with the centroidal deviation of flight vehicle. First, calculation formulas of centroidal deviation are given through theoretical derivation. The following analysis reveals the deficiency of these formulas. Then, exhaustive method, Monte Carlo method and an optimization method are investigated to research centroidal deviation. After that, examples of typical flight vehicle’s centroidal deviation are presented utilizing the above methods. The findings of the present study show that Monte Carlo method is most effective for distribution characteristics of centroidal deviation, whereas exhaustive method and optimization method perform better on deviation limit value analysis.

Key words: Mass centroid, Centroid error, error analysis