Aiming at the new linear actuator transmission , it introduces the transmission composed of parallel axis gear and planetary gear , establishes the dynamic model of the transmission system based on multi -body dynam-ics theory , analyzes the dynamic model with gear prediction and correction method .It builds the virtual prototype of linear actuator in ADAMS , solves the dynamic response of the transmission system .The results provide theo-retical basis for design and application of the linear actuator transmission system .%以直线驱动器定轴齿轮和行星齿轮组合的传动系统为研究对象，阐述其传动原理，采用多刚体动力学理论建立该传动系统动力学模型，并通过Gear预估-校正算法对动力学方程进行分析。利用ADAMS建立直线驱动器传动系统动力学仿真模型，求解直线驱动器传动系统的传动特性和动态响应，将仿真啮合力与理想情况进行对比，验证了仿真模型的正确性，为直线驱动器的进一步优化及应用提供理论基础。
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