考虑不对称负载的传动系统扭振特性及抑制方法

The dual-motor coupled drive is a common configuration for the Electro-mechanical Transmis⁃ sion（EMT）system in tracked vehicles，which is characterized by input-output coupling，high power transmission efficiency，and variable load conditions. However，most existing torsional vibration control strategies for EMT are designed for symmetric excitation conditions on both sides，which do not align well with real-world operating scenar⁃ ios. To improve the torsional vibration under asymmetric excitation，an EMT torsional vibration model is first estab⁃ lished to investigate the vibration energy coupling effect between the two sides of the EMT under asymmetric excita⁃ tion and its influence mechanism on the system's dynamic behavior. Based on these findings，a disturbance compen⁃ sation method based on dual-loop feedback is proposed，and a torsional vibration suppression strategy tailored for EMT under asymmetric excitation is developed. Verification results show that this strategy can effectively suppress torsional vibration of the EMT system under such excitation conditions.