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本文针对一平面两杆机构开展了柔性多体系统动力学实验研究。文中介绍了实验系统的组成；阐述了基于应变法测量作大范围运动柔性梁弹性振动位移的原理；描述了包括模态分析和动力学响应实验在内的实验过程和结果，通过与相应仿真结果的对比分析证实了实验结果的准确性和可靠性。
In this paper, a flexible planar multi-body system dynamics experimental study was carried out for a planar two-bar mechanism. In this paper, the composition of the experimental system is introduced. The principle of measuring the elastic vibration displacement of a flexible beam with a large range of motion based on the strain method is expounded. The experimental process and results including modal analysis and dynamic response experiment are described. By comparing with the corresponding simulation results The comparative analysis confirmed the accuracy and reliability of the experimental results.