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讨论了带集中质量的挑臂梁在基础运动时的动力响应问题。将挑臂梁离散为简支段和外伸段二个均匀、等厚度梁。用初参数表示在段梁的一般解，并使它们满足边界条件和相邻间的物理和几何连续条件，得到了解析形成的自由振动频率方程和振形函数。在此基础上得到了挑臂梁在基础运动时的动力响应的最终解。
The problem of the dynamic response of the pick beam with concentrated mass during basic movement is discussed. The pick arm beam is divided into two simple, equal-thickness beams with a simple branch section and an outreach section. The initial parameters are used to represent the general solutions of the section beams and make them satisfy the boundary conditions and the physical and geometric continuity conditions between the adjacent sections. The free vibration frequency equation and the shape shape function obtained by the analysis are obtained. On this basis, the final solution of the dynamic response of the pick-up beam during basic movement is obtained.