铁道科学与工程学报2017，Vol.14Issue(3)：626-634,9.
基于振动模态的机车主变压器绕组稳定性研究
Reliability analysis of locomotive main transformer winding based on vibration mode
摘要
Abstract
In order to further optimize the research on safety status monitoring and failure early warning technology for railway train, the paper proposed a research method based on axial vibration mode to detect the phenomenon of winding axial instability. Based on the axial dynamic structural model of locomotive main transformer winding single leg as well as the relationship between winding axial electromagnetic force and vibration acceleration, the paper studied how does the winding clamping force impact on the winding vibration acceleration by extracting and measuring the changes of cycle signal amplitude in transformer winding vibration acceleration signal. In the verification experiments, the paper established a 3D dynamic model of HXD1C main transformer by ANSYS, chose the position of tank's front and rear corresponding to winding center point as vibration signal monitoring point, and finally proved that the main transformer winding clamping force status can be monitored by the frequency and amplitude of winding vibration acceleration.关键词
机车主变压器/绕组失稳/轴向振动模态/振动加速度/有限元模型Key words
locomotive main transformer/winding instability/axial vibration mode/vibration acceleration/ANSYS model分类
信息技术与安全科学引用本文复制引用
朱佼佼,陈特放,付强..基于振动模态的机车主变压器绕组稳定性研究[J].铁道科学与工程学报,2017,14(3):626-634,9.基金项目
国家自然科学基金资助项目(61603062) （61603062）
