There were several previous similar MFSAs. We compared the performance of our presented MFSA with that of the previous dampers using the ratio of the system oscillation time with and without the dampers. It can be seen from Table , our presented MFSA had the best damping efficiency. Meanwhile, our presented MFSA required only 6g MF, so it was more economical and suitable for applications with strict mass control, such as spacecraft vibration reduction. 2017 Magnetic fluid shock absorber 3 2016 Ferrofluid shock absorber 3 2013 Ferrofluid damper 3 2012 Magnetic fluid damper 27g 3 Note: a* the system oscillation time with the equivalent mass b* the system oscillation time with the magnetic fluid shock absorber