The invention discloses a
test bench of the comprehensive performance of an
air spring, and belongs to the technical field of
vehicle engineering. The
test bench can effectively achieve the aims of carrying out the vertical, transverse and twisting tests of the
air spring at the same time and simulating the actual working states of the
air spring. A rack of the
test bench is in a four stand column type, a bearing platform is arranged in the middle of the rack, a device for bearing balance weight is arranged above the rack, a sensor is arranged below the rack, each stand column of the rack is provided with a cone-shaped fixing nut, a vertical hydraulic
actuator which is arranged in a plane triangle mode is arranged below a
workbench, and the volume of an additional
air chamber is adjustable. The influence to the dynamics performance of the air spring by regional environment with different temperatures can be simulated by an external air conditioner
system, multi-
dimensional simulation is applied to the air spring through a shock excitation source, changes of loads and deflection of the air spring under the conditions with different environment temperatures and physical parameters are measured, and parameters such as
dynamic stiffness, static stiffness,
damping ratio and
transfer ratio of the air spring are calculated through parameters of vibration characteristics. The test bench is mainly used for testing the comprehensive performance of the air spring.