Compound absorber structure design for low frequencies vibration isolation

The compound absorber of some type of electronic device is designed. Two main dynamic circumstances:vibration and strike are considered. The design variable is rigidity of vibration absorber,and the constraint condition is defined based on the requirement of vibration and strike designing circumstances. A mathematic model of vibration absorber system is set up in ANSYS,and spring constant of vibration absorber in 3 directions was defined after analyzing. At the present time,small vibration absorber can’t absorb vibration from 20 Hz,but this design require vibration absorber to reduce vibration from 20 Hz,so this paper is a kind of discuss and study in super low frequencies absorbing. As far as we know,spring vibration absorber is effective at low frequencies,but it can not damp formant of vibration; on the other hand,rubber vibration absorber can damp vibration,but it’s not very well at low frequencies. In order to give attention to low frequencies characteristic of spring and damp characteristic of rubber,it studies theory on how to get super low frequencies vibration absorber by combining spring and rubber,aided with experiment in the process of design,so the paper can afford help to the similar design.