摘要
液体推进剂贮箱的防晃结构设计导致液体晃动阻尼的非线性特性。本文在液体晃动等效力学模型的频响函数拟合方法的基础上,导出一种处理非线性液体晃动阻尼问题的模型参数近似拟合方法。应用此方法处理装有防晃阻尼装置的贮箱内液体晃动模型的参数估计问题可获得工程上满意的精度。
The structure design for sloshing suppression in a liquid propellant tank results in the nonlinear characteristics of liquid sloshing damping. Based on the frequency response functions curve fit method, an approximate method for extraction of sloshing model parameters about the problem of nonlinear damping is derived. Applying this method to estimate the sloshing model parameters of liquid in the tank with baffle for sloshing suppression, the value of these parameters may have enough accuracy suitable for engineering application.
出处
《导弹与航天运载技术》
1993年第3期27-36,共10页
Missiles and Space Vehicles
关键词
推进剂贮箱
液体晃动
数据处理
Propellant tank
Liquid sloshing
Dynamic model
Data processing
