HXD1C型机车运用中发生主变流器TCU(Traction Control Unit)内的故障有多种因素引起。有机车设计结构性缺陷,有机车运用地理性环境温度与电子设备工作温度的双重影响,有机车长时间连续工作在高负荷区引起的超载超温的影响,也有机车网络...HXD1C型机车运用中发生主变流器TCU(Traction Control Unit)内的故障有多种因素引起。有机车设计结构性缺陷,有机车运用地理性环境温度与电子设备工作温度的双重影响,有机车长时间连续工作在高负荷区引起的超载超温的影响,也有机车网络通信障碍,有人为操作处置失当等因素,现对此类不良因素进行了揭示,并提出了相应的改进与预防措施。展开更多
A semi-active magneto-rheological （MR） damper was experimentally investigated and compared to an original equipment manufacturer （OEM） damper for a passenger vehicle, by using a quarter car models. A full-scale tw...A semi-active magneto-rheological （MR） damper was experimentally investigated and compared to an original equipment manufacturer （OEM） damper for a passenger vehicle, by using a quarter car models. A full-scale two-degree-of-freedom quarter car experimental set-up was constructed to study the vehicle suspension. On-off skyhook controller and Fuzzy-Lyapunov skyhook controller （FLSC） were employed to control the input current for MR damper so as to achieve the desired damping force. Tests were done to evaluate the ability of MR damper for controlling vehicle vibration. Test results show that the semi-active MR vehicle suspension vibration control system is feasible. In comparison with OEM damper, on-off and FLSC controlled MR dampers can effectively reduce the acceleration of vehicle sprtmg mass by about 15% and 24%, respectively.展开更多
文摘HXD1C型机车运用中发生主变流器TCU(Traction Control Unit)内的故障有多种因素引起。有机车设计结构性缺陷,有机车运用地理性环境温度与电子设备工作温度的双重影响,有机车长时间连续工作在高负荷区引起的超载超温的影响,也有机车网络通信障碍,有人为操作处置失当等因素,现对此类不良因素进行了揭示,并提出了相应的改进与预防措施。
基金Project(51175265) supported by the National Natural Science Foundation of ChinaProject(CX10B_114Z) supported by Jiangsu College Graduate Research and Innovation Program,China+1 种基金Project(BK2008415) supported by the Natural Science Foundation of Jiangsu Province,ChinaProject(Y1110313) supported by the Natural Science Foundation of Zhejiang Province,China
文摘A semi-active magneto-rheological （MR） damper was experimentally investigated and compared to an original equipment manufacturer （OEM） damper for a passenger vehicle, by using a quarter car models. A full-scale two-degree-of-freedom quarter car experimental set-up was constructed to study the vehicle suspension. On-off skyhook controller and Fuzzy-Lyapunov skyhook controller （FLSC） were employed to control the input current for MR damper so as to achieve the desired damping force. Tests were done to evaluate the ability of MR damper for controlling vehicle vibration. Test results show that the semi-active MR vehicle suspension vibration control system is feasible. In comparison with OEM damper, on-off and FLSC controlled MR dampers can effectively reduce the acceleration of vehicle sprtmg mass by about 15% and 24%, respectively.
