中文摘要：

针对扭矩激励作用下多轮盘转子系统轴承负荷的复杂变化，采用改进的传递矩阵法，推导了支承负荷的敏感度矩阵。在单位扭矩作用下，推导并分析轴承负荷的变化量。结果表明，与扭矩激励位置相距较近的轴承，负荷受到的影响较大。在任意给定扭矩变化量时，可以准确、方便地计算出相应的轴承负荷变化值，这为扭矩在各跨间的传递耦合特性的理论研究提供了有效的途径。

英文摘要：

Beating load of multi - roulette rotor system is complex change under the incentive of torque, and the improved transfer matrix method is adopted for deducing, the bearing load sensitivity matrix. The variation of beating load is calculated and analyzed with unit torsion moment. The result shows that the torque produces more influence on the loads when the incentire position is nearer bearing. It is convenient to obtain the precious value of load bearing variation with any given torque variation. This provides an effective way for studying the coupling characteristic theory of torque transmission across each span.