Nonlinear Dynamic Behaviors of Liquid and Space Structure in a Low Gravity Condition

低重力条件下液体和空间结构的非线性动力行为

• 批准号: 14550208
• 负责人: CHIBA Masakatsu
• 金额: $ 2.37万
• 依托单位: Iwate University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550208/
• 关键词: Low Gravity; Space Structure; Liquid; Coupled Vibration

Nonlinear coupled dynamic behavior of a space structure model with liquid contained tank has been investigated. Subdividing it into two subjects the problem has been treated.I. Nonlinear dynamic behavior of space structure model with liquid contained tankTest model was composed of central capsule with 60 mm in diameter and 500 mm length flexible beams as solar panels. The test model was levitated by magnetic forces and was excited by electromagnetic force. The influence of liquid moving, i.e. sloshing was clarified by measuring the frequency response curves of a beam and main tank.II. Nonlinear dynamic behavior of a water drop on a vibrating planeNonlinear dynamic behavior of a water drop on a vibrating plane has been experimentally investigated.Three kinds of base on which test drop set has been used to obtain a test drop will different contact angle. The influences of liquid contact angle, liquid volume on the nonlinearity of a drop response has been clarified.

研究了含贮液箱空间结构模型的非线性耦合动力特性。把它分成两个主题来处理这个问题。带贮液箱空间结构模型的非线性动力特性试验模型由直径为60 mm的中心舱和长度为500 mm的柔性梁组成。试验模型由磁力悬浮并由电磁力激励。通过测量梁和主油箱的频率响应曲线，阐明了液体运动即晃动的影响。水滴在振动平面上的非线性动力学行为本文对水滴在振动平面上的非线性动力学行为进行了实验研究，实验中采用了三种不同的试验液滴装置来获得不同接触角的试验液滴。阐明了液体接触角、液体体积对液滴响应非线性的影响。

项目成果

M.Chiba, T.Sugimoto: "Vibration Characteristics of a Cantilever Plate with Attached Spring-Mass System"J. Sound & Vibration. 260(2). 237-263 (2003)

M.Chiba，T.Sugimoto：“附有弹簧质量系统的悬臂板的振动特性”J。