Development of damper used new energy dissipation principal colloidal damper

新型耗能胶体阻尼器阻尼器的研制

• 批准号: 16360117
• 负责人: IWATSUBO Takuzo
• 金额: $ 7.68万
• 依托单位: Kansai University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360117/
• 关键词: damper; colloidal damper; hydrophobic silica gel; water, glycerin, formamide; hysteresis; simulation of molecular dynamics; static and dynamic characteristics

This research is development of a new damper which is used a principle of surface extension in a very small pore. The pore made of silica gel is coated by hydrophobic material. Then if water flows in and out to the pore, both surface extension forces are different. This difference induces energy dissipation, because the area made by tracks of the forces of flow in and out becomes dissipation energy. The object of this research is to select adequate coating material, pore diameter, pressure of water and liquid to design a proper damper system and application model by using experimental manner and to analyze movement of water in a pore by using molecular dynamics. In the experiment a damper is made by cylinder / piston system and colloidal liquid composed by hydrophobic silica gel and water. First, static test is performed to obtain basic characteristics of the colloidal damper and material for design of the damper is obtained. Second, dynamic test is performed by using an exciting machine and frequency response of the damper, that is, hysteresis characteristics due to frequency change and pre-pressure in the cylinder are investigated. Then the followings are concluded; (1) SMB70-20-MT-C8 is best as a coating material, (2) The pore diameter is about 7-10nm, (3) Pre-pressure of water is 6-8 Mpa and max-pressure is 60Mpa, (4) Water is usually good and antifreeze is available in cold circumference, (5) Single cylinder with pre-pressure is simple and high efficiency, (6) When the damper is applied to a car suspension, characteristics of hysteresis is different from a oil damper because the colloidal damper has stiffness and damping property and (7) In the analysis using molecular dynamics, movement of water and contact angle in the pore are measured for a single pore and water cluster.

这项研究是开发一种新型阻尼器，该阻尼器利用非常小的孔隙中的表面延伸原理。由硅胶制成的孔上涂有疏水材料。那么，如果水流入和流出孔隙，则两个表面拉伸力是不同的。这种差异会引起能量耗散，因为流入和流出的力的轨迹形成的区域变成耗散能量。本研究的目的是通过实验的方式选择合适的涂层材料、孔径、水和液体的压力，设计合适的阻尼系统和应用模型，并利用分子动力学分析水在孔隙中的运动。实验中阻尼器由气缸/活塞系统和由疏水性硅胶和水组成的胶体液体制成。首先进行静态试验，获得胶体阻尼器的基本特性，并获得阻尼器设计所需的材料。其次，利用激振机进行动态试验，研究阻尼器的频率响应，即考察频率变化和缸内预压引起的迟滞特性。那么得出以下结论； （1）SMB70-20-MT-C8最适合作为涂层材料，（2）孔径约为7-10nm，（3）水的预压为6-8Mpa，最大压力为60Mpa，（4）水通常很好，冷周有防冻剂，（5）单缸预压简单，效率高，（6）当阻尼器应用于汽车时 由于胶体阻尼器具有刚度和阻尼特性，因此迟滞特性与油阻尼器不同。 (7) 在分子动力学分析中，针对单个孔隙和水团簇测量孔隙中水的运动和接触角。

项目成果

Dynamic Characteristics of New Damping Element Based on Surface Extension Principle in Nano Tube

基于纳米管表面延伸原理的新型阻尼元件动态特性

• 发表时间: 2006
• 作者: C.V.Suciu;T.Iwatsubo;M.Ikenaga;K.Yaguchi;T.Iwatsubo
• 通讯作者: T.Iwatsubo

Investigation of the water flow into a mesoporous matrix from hydrophobised silica gel

研究水从疏水硅胶流入介孔基质的情况

• 发表时间: 2004
• 作者: C.V.Suciu;T.Iwatsubo;M.Ikenaga;K.Yaguchi;T.Iwatsubo;T.Iwatsubo;岩壺 卓三;岩壺 卓三;T.Iwatsubo;T.Iwatsubo;T.Iwatsubo
• 通讯作者: T.Iwatsubo

分子動力学シミュレーションを用いた疎水性処理材料の創成

使用分子动力学模拟创建疏水处理材料

• 发表时间: 2005
• 作者: C.V.Suciu;T.Iwatsubo;M.Ikenaga;K.Yaguchi;T.Iwatsubo;T.Iwatsubo;岩壺 卓三;岩壺 卓三
• 通讯作者: 岩壺 卓三

Investigation of dynamic characteristics of colloidal damper by experiment

胶体阻尼器动态特性的实验研究

• 发表时间: 2005
• 作者: C.V.Suciu;T.Iwatsubo;M.Ikenaga;K.Yaguchi;T.Iwatsubo;T.Iwatsubo;岩壺 卓三;岩壺 卓三;T.Iwatsubo
• 通讯作者: T.Iwatsubo

Effect of the structure of the hydrophobised meoporous silica gel on thecolloidal damper hysteresis

疏水化介孔硅胶结构对胶体阻尼器迟滞的影响

• 发表时间: 2004
• 作者: C.V.Suciu;T.Iwatsubo;M.Ikenaga;K.Yaguchi;T.Iwatsubo;T.Iwatsubo;岩壺 卓三;岩壺 卓三;T.Iwatsubo;T.Iwatsubo;T.Iwatsubo;T.Iwatsubo;T.Iwatsubo;T.Iwatsubo
• 通讯作者: T.Iwatsubo