Adjustable air damper for split Hopkinson pressure bar

Abstract

The invention aims to provide an adjustable air damper for a split Hopkinson pressure bar. The adjustable air damper for a split Hopkinson pressure bar comprises an impacted device and an energy absorption device, wherein the impacted device comprises an impacted base, a connecting rod and a rubber block, wherein the impacted base is provided with an impacted cavity therein; the rubber block is mounted in the impacted cavity; the connecting rod is connected to the rubber block, and penetrates the impacted cavity to reach the outside of the impacted base; the energy absorption device comprises an energy absorption base and an aluminum block; an energy absorption cavity is formed in the energy absorption base; the aluminum block is arranged at the right end of the energy absorption cavity and can move along the energy absorption cavity; a spring is arranged between the aluminum block and the left end of the energy absorption cavity; the connecting rod penetrates the impacted cavity to be connected to the aluminum block; an airflow channel is formed in the energy absorption base; the inlet of the airflow channel is communicated with the cavity; and a valve is arranged at the outlet of the airflow channel. According to the invention, the purpose of energy absorption is realized by using airtightness; the valve is utilized to adjust the capacity release rate of the air damper, which is simple and effective; and the metal block is used as an impacted carrier, so that the repeated utilization ratio is high, economy and environmental protection are realized.

Description

technical field [0001] The present invention relates to a damper. Background technique [0002] At present, the known dampers used as capacity absorbing devices of the Hopkinson pressure bar dynamic test system are mostly traditional objects such as rubber and foam. Using these objects as dampers is not only difficult to control, but also not economical and environmentally friendly. Contents of the invention [0003] The object of the present invention is to provide an adjustable Hopkinson pressure bar adjustable air damper with good energy absorption effect. [0004] The purpose of the present invention is achieved like this: [0005] The Hopkinson pressure rod adjustable air damper of the present invention is characterized in that it includes an impact device and an energy absorbing device, the impact device includes an impact base, a connecting rod, and a rubber block, and the impact base is provided with an impact cavity , the rubber block is installed in the impacte...

AI Technical Summary

Problems solved by technology

[0002] At present, the dampers known as the capacity absorbing devices of the Hopkinson pressure bar dynamic test system are mostly traditional objects such as rubber and foam. Using these objects as dampers is not only difficult to control, but also not economical and environmentally friendly.

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