申请者在国内外首次提出了一种特别适用于失重环境下减振的新型磁性液体阻尼减振器。该种减振器具有结构简单、体积小、重量轻、寿命长、不消耗能量、减震效果好等优点，有着很高的学术价值和广阔的应用前景，它不仅适用于失重环境，而且也适用于地面低频小振幅振动。本课题拟在理论上，以磁性液体阻尼减振器为研究对象，建立包含磁性液体、永久磁铁和减振器外壳各个物理参数和几何参数的数学模型，研究在减振器工作条件下磁性液体减振器内磁性液体的粘温效应、磁粘效应及磁性液体磁性颗粒的凝聚规律，建立磁性液体阻尼减振器的能量耗散公式，最终建立磁性液体阻尼减振器的设计方法；在数值分析方面，计算磁性液体阻尼减振器在不同振动条件下，磁性液体产生的热量及温度分布；在实验方面，设计并建立磁性液体阻尼减振器实验台，研究磁性液体的注入量、物理参数、永久磁铁的种类及形状、外壳的材料及形状对减振器减振效果的影响，并验证理论分析的正确性。

We firstly put forward a new kind of magnetic liquid damper which is especially suitable for the weightless environment in the world. The damper has some merits such as simple structure, small volume, light weight, long life, no energy consumption and good reduction vibration effect. It has high academic value and wide applications.And it may be used both in the weightless environment and the vibration that has low frequency and small amplitude on the ground. In theory, we will take the damper as the research object, set up a mathematical model including the physical and geometrical parameters of magnetic liquid, permanent magnet and the shell of damper ,study the viscous-temperature effect, magnetic-viscous effect and aggregation of magnetic particles of magnetic liquid within the damper, set up the energy dissipation formula,and finally set up the design method of magnetic liquid damper. In numerical analysis, we will calculate the heat and the distribution of temperature. In experiments, we will design and set up a magnetic liquid damper test-bed and study the influence of factors such as the injection quantity of magnetic liquid, physical parameters, the material and the shape of the permanent magnet and the shell of damper on reduction vibration effect and verify the theoretical analysis.