Energy absorbing and buffering device applied to dynamic true triaxial electromagnetic Hopkinson bar and method

An energy absorbing and buffering device applied to a dynamic true triaxial electromagnetic Hopkinson bar, comprising:

• an energy absorbing and buffering ring, an exhaust pipe and an inert gas storage bin, wherein the exhaust pipe is connected with the energy absorbing and buffering ring and the inert gas storage bin;
• the energy absorbing and buffering ring comprises:
• a collided impact ring, an inert gas impact ring outer wall, an annular connecting bar, an annular piston, an intra-annular air vessel and an intra-annular air hole;
• and the collided impact ring slides relative to the inert gas impact ring outer wall, interiors of the collided impact ring and the inert gas impact ring outer wall are designed as hollow structures, the collided impact ring is fixedly connected with the annular piston through the annular connecting bar, the inert gas impact ring outer wall and a bottom end of the annular piston form the intra-annular air vessel, and the intra-annular air hole is arranged on the intra-annular air vessel;
• and
• the inert gas storage bin is provided with an upper partition plate and a lower partition plate;
• the upper partition plate and the lower partition plate are arranged in the inert gas storage bin to divide the inert gas storage bin into an upper air vessel and a lower air vessel, the inert gas storage bin is further provided with an air inlet of the inert gas storage bin, and the air inlet of the inert gas storage bin is communicated with the upper air vessel;
• the upper partition plate and the lower partition plate are respectively provided with balance air holes, a piston is arranged between the upper partition plate and the lower partition plate, the piston is provided with a piston exhaust hole;
• and after the piston exhaust hole is communicated with the balance air holes of the upper partition plate and the lower partition plate, the upper air vessel is communicated with the lower air vessel;
• and one end of the upper partition plate is provided with an air leakage hole, the piston between the upper partition plate and the lower partition plate is arranged close to the air leakage hole, and one end of the piston far from the air leakage hole is provided with a spring.