ROAD-ARM TYPE DYNAMIC CHARACTERISTIC TESTER, TEST METHOD THEREOF DYNAMIC CHARACTERISTIC TESTING SYSTEM

摘要

PURPOSE: A rod-arm type dynamic characteristic testing device for a suspension, a testing method, and a dynamic characteristic testing system are provided to accurately perform a dynamic characteristic test of a suspension for high-weight material with a structure minimizing friction under an environment similar to an actual vehicle condition. CONSTITUTION: A rod-arm type dynamic characteristic testing device for a suspension includes a body, a rod arm, an excitation plate (120), a connection bar, an actuator (130), a displacement sensor, a joining unit, and a plurality of rods. The body is joined to a fixed structure and includes an acceleration sensor. An end portion of the rod arm is joined to the body, and a rod wheel (102) is formed on the other end portion thereof. The excitation plate is arranged to be in contact with the rod wheel. The connection bar is connected to the excitation plate so that the excitation plate is freely vibrated as a free end. The excitation plate forms a 4-joint link structure connecting the fixed structure and the excitation plate each other, thereby controlling the excitation plate to be moved vertically. The actuator excites the excitation plate. The displacement sensor measures the relative displacement of the body with respect to the fixed structure.