The Non-Linearity of High-Speed Bogie and the Safety Stability Margin of High-Speed Railway Vehicles
The Non-Linearity of High-Speed Bogie and the Safety Stability Margin of High-Speed Railway Vehicles
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发表时间：
2011
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通讯作者：
Zhao Wen-zhong
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作者：
Zhao Wen-zhong
针对高速列车W/R接触关系的应用空间，讨论了高速转向架的三大非线性，即非线性稳定性、拖车架摆动滞后非线性和高频防蛇行机构。根据实践经验，提高高速铁道车辆安全稳定裕度的主要措施可归纳为两种防蛇行模式，即过阻尼蛇行抑制和防蛇行吸收带。但过阻尼蛇行抑制会降低横向平顺性，恶化W/R接触磨损，针对高铁运营中构架振动报警出现的新问题，提出了基于防蛇行吸收带的提高安全稳定裕度的调控方案，并在试验台测量的基础上制定了防蛇行软约束主动策略，仿真预期结果表明，高铁运营380 km·h-1的安全稳定裕度是可以保证的。
For the application space of high-speed W/R contact relations,the following three major nonlinearities of high-speed bogies were discussed,namely,the nonlinear stability,the hysteresis nonlinearity of trailer frame pitching and the anti-hunting blow-off mechanism in high frequency.According to the practical experiences,the main means for improving the safety stability margin of high-speed rolling stock were concluded into two anti-hunting modes,i.e.,the over-damped hunting repression and the anti-hunting absorbing band.But the over-damped hunting repression will have such negative effects as lowering the lateral ride comfort and worsen the W/R contact wear,etc.For the new problems of bogie frame vibration alarms in HSR(high-speed railway) operations,the adjustment and control plan for improving the safety stability margin was therefore presented based on the anti-hunting absorbing band.The active strategy of anti-hunting soft-constraint was formulated on the foundation of the test rig measurement.The simulation expected results show that the safety stability margin of 380 km·h-1 HSR operation can be guaranteed.