中文摘要：

多支承转子系统轴承负荷识别技术是进行转子动力学分析的关键技术，国内外学者从不同的层面与角度对它进行了大量系统研究，作者研究了轴承负荷识别技术各自的特点，并研制了直接测力法试验系统，为大型旋转机械在线监测和故障诊断提供依据。

英文摘要：

The techniques about bearing load identification for multi -support rotor system is the key technoloty that is applied in rotor dynamic analysis. Scholars at home and abroad do a great many systematic research on it from various lays and points of view. We study the characteristics of these methods of bearing load identification, and develop the testing system by directly measuring force which can provide advice to the online monitoring and fault diagnosis in large rotating machinery.