泡沫金属磁流变阻尼器的结构优化及性能测试+CAD图纸
毕业论文关键词： 磁流变减振器；泡沫金属；磁流变液；ANSYS；磁场仿真；优化设计
Structure optimization and performance test of the magnetic rheological damper for metallic foams
Magneto rheological (MR) damper is a kind of to magneto rheological fluid as the working medium of the new damping adjustable device, because it has low power consumption, fast response, strong controllability, damping force can be continuously adjusted and advantages, in recent years in the field of machinery, automobile, civil engineering and so on the vibration control has been widely used. However conventional magneto rheological (MR) damper is mainly used for low frequency, long trip, but for a slightly high frequency vibration damping efficiency is not ideal. This is mainly because of the small annular gap, magneto rheological fluid from one chamber to the other cavity takes a long time, they are not suitable for high frequency vibration control and conventional damper controllable damping is small, to enable the magneto rheological damper can be used for a slightly higher frequency of vibration control and obtain the larger damping force can take to increase the number of damping holes way. The foamed metals have the characteristics of porous and the gap can reach a small, if the magnetic rheological fluid through the pores of the metal foam, will generate a lot of damping force. In addition, the foam metal has a buffer vibration absorbing performance, which will generate an additional buffer vibration absorbing effect with the magnetic fluid damper damper.. Compared with the traditional MR damper, the damper has the features of low cost and long life.. However, the damping force of the damper is lower by theoretical calculation.. In order to improve the performance of magneto rheological damper for metal foam, the subject of the for optimization design, first of all through the ANSYS simulation determine optimization goal, and optimize and drawing, after optimization and the simulation and test its performance.
Keywords: Magnetorheological (MR) absorber; Metal foam; MR fluid; Ansys; Magnetic field simulation; Optimization design
目录
1 绪论 1
1.1 课题研究意义 1
1.2 本文的主要研究内容 2
2 泡沫金属磁流变阻尼器 3
2.1 磁流变液阻尼器的发展 3
2.1.1 国内发展 3
2.1.2 国外发展 4