Application of Constraint Force Equation Methodology in Aircraft Stage Separation Dynamics Simulation

doi:10.16182/j.issn1004731x.joss.17-0138

Abstract

Abstract: The separation process of two-stage aircraft can be divided into three periods: lock-up period, constraint period and detachment period. The guide pins have constraint on two stages, which permit only translation in X-axis direction. To avoid the complex force analysis, the guide pins can be regarded as a joint of one degree of freedom. By adding the constraint and freedom equations to traditional separation dynamics equations, a dynamics model based on constraint force equation (CFE) methodology was built. The constraint force and moment can be obtained by solving constraint force equations. The constraint force equation (CFE) methodology was applied to all three periods of separation simulation and its practicability was verified by single simulation and Monte Carlo simulation.

Key words: separation simulation, guide pins, dynamics modeling, constraint force equation, simulation

CLC Number:

V412.1

Wang Yongji, Li Bangbang, Liu Lei. Application of Constraint Force Equation Methodology in Aircraft Stage Separation Dynamics Simulation[J]. Journal of System Simulation, 2019, 31(4): 632-640.

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