The invention relates to a dynamic and fatigue performance detection device and method for a steel rail assembling
fastener system, and is used for carrying out dynamic
mechanics behavior detection and fatigue performance detection on the steel rail assembling
fastener system. The detection device comprises a bottom plate, vertical stand columns, a
vibration exciter, an actuation head, a transition sliding block, a tongue plate, auxiliary beams, a box body and upper cross beams, wherein the vertical stand columns are fixedly connected with the bottom plate; the auxiliary beams and the upper cross beams are independently connected with the vertical stand columns; the box body is positioned between the auxiliary beams and the upper cross beams and is used for fixing a sleeper; the vibrationexciter is fixed on the bottom plate; the actuation head of the
vibration exciter is connected with the transition sliding block; the transition sliding block is used for supporting the rail head of the steel rail; and the tongue plate is used for realizing connection between the rail head of the steel rail and the transition sliding block. By use of the detection device, in the dynamic and fatigue experiment of the assembling
fastener system, the influence of reality factors, including vehicle speed,
axle load, rail structure, circuit line
font, rail surface state and the like, can be fully considered,
broadband excitation and multi-working-condition detection are realized, and in addition, the detection device is convenient in operation and low in cost.