Broadband excitation test device and method

• Main Authors: YU HAOYONG, HE ZHIWEN, LI ZIRUI, WU YUE, ZHANG HUAN, WEI YONGWANG, CAI SHISHENG, DU XIANGGANG, WANG MIN, DU BING, XIAO JUNHENG, WANG YAZHOU, YAN ZIQUAN, LIU BINGTONG
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a broadband excitation test device and method.The broadband excitation test device comprises an outer main body support, an exciter and an actuator, the exciter and the actuator are installed below the outer main body support, the lower end of the exciter is connected with a loading tool acting on a steel rail, and the lower end of the actuator is connected with the loading tool through an elastic decoupling unit; an acceleration sensor is arranged on the loading tool, and a force transducer is arranged between the loading tool and the steel rail. The broadband excitation test device can be used for a full-scale track vibration damping performance evaluation test, a broadband excitation test with high repeatability, high reliability and controllable precision is carried out on a full-scale track system, and important technical support is provided for fine dynamic evaluation of the track system. 本发明公开了一种宽频激励试验装置及方法，该宽频激励试验装置包括：外主体支架以及安装于外主体支架下方的激励器和作动器，激励器的下端连接有作用于钢轨上的加载工装，作动器的下端与加载工装之间