Magnetorheological damper high-speed heavy punch test system

Abstract

The present invention discloses a magnetorheological damper high-speed heavy punch test system. The system comprises a guide rail, a heavy punch, a damper installation base, an ejection mechanism andan adjustable damping mechanism. The guide rail is obliquely arranged, the heavy punch and the damper installation base are slidingly installed at the guide rail in an unidirection mode, the ejectionmechanism is arranged at the upper side of the guide rail and gives initial kinetic energy with adjustable size to the heavy punch, the adjustable damping mechanism is arranged at the lower side of the guide rail and gives adjustable damping force to the damper, the inclination angle of the guide rail in a free state can be arranged in a mode of force balance in an inclination direction; and the magnetorheological damper high-speed slug test system further comprises a speed sensor configured to detect an initial speed corresponding to the initial kinetic energy of the heavy punch. The magnetorheological damper high-speed heavy punch test system is simple in structure, flexible and convenient in test data and easy to obtain accurate and real energy absorption rate in the collision process and provides reliable basis for the test of later optimization of the buffer performance of a magnetorheological bumper.

Description

technical field

[0001] The invention relates to the field of magnetorheological damper testing, in particular to a high-speed heavy hammer test system for magnetorheological dampers. Background technique

[0002] In the field of automobiles, many scholars currently conduct research and analysis on the flow field and magnetic field inside the magneto-rheological buffer channel through simulation and experiments, but most of the research is based on certain assumptions and simplified basic conditions for low-speed collision research and analysis. , it is impossible to specifically characterize the flow field and magnetic field distribution inside the magneto-rheological buffer under high-speed impact. When evaluating the cushioning performance of magneto-rheological buffers, the evaluation and research are mainly based on the impact load of the impact, the fluctuation of the impact acceleration and the deformation of the crushing element in the analysis of the mechanical model...

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