中文摘要：

针对电动负载模拟器中采用的一种扭矩合成装置,分析其在不同输入条件下扭矩的合成效率。利用Solidworks软件建立三维模型,通过Parasolid格式将模型转入到ADAMS中,以Hertz弹性碰撞理论为基础,对齿轮之间的接触力进行计算并施加约束,最终建立扭矩合成装置的动力学模型,通过输入不同大小、方向、频率、相位等各种形式的扭矩,得到输出扭矩的动态响应特性曲线。仿真结果表明：仿真值与理论值误差在1%之内,证明该扭矩合成装置在各种不同输入条件下都能高效地实现扭矩合成的目的,所建模型是可靠、准确的。研究结果对装置的使用以及进一步的结构优化设计具有一定的指导意义。

英文摘要：

A torque synthesizer was used in an electric load simulator to analyze its synthesis efficiency under different input conditions. A 3D model was established with Solidworks and transferred from Parasolid into ADAMS. Then,the contact force between gears was calculated and constraints were imposed to set up a dynamic model for torque synthesizer based on the Hertz elastic collision theory. The torque of different sizes, orientation, frequency, phases and forms were input to get the dynamic response curve of output torque. Simulation results show that the deviation between simulation value and theoretical value is within 1%,which has proved that the torque synthesizer is efficient in all input conditions and the model established is reliable and accurate. The study results are conducive for the use and further structural optimization of torque synthesizers.