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为了开发中国运行速度为200km.h-1的2C0轴式单杆牵引高速机车转向架,研究了牵引杆布置方式对机车运行安全性的影响。采用多体动力学软件SIMPACK建立了2C0轴式弹性架悬机车整车动力学模型,在惰行、牵引和制动工况下,分析了单牵引杆由转向架向车体端部和中部牵引时,机车的直线运行性能和曲线通过性能。分析结果表明:牵引杆布置方式对机车动力学性能影响不显著,建议采用牵引杆端部牵引的方案,以简化机车车体的设计与制造。采用牵引杆端部牵引的机车可安全通过R400m和R1600m的S形曲线;通过R400m小半径曲线时,机车惰行运行的轮对横向力大于牵引和制动工况的横向力,制动工况的轮重减载率较大;通过R2800m大半径曲线时,机车牵引和惰行的轮对横向力大小相当,大于制动工况的横向力。
In order to develop the 2C0-axis single pole traction high-speed locomotive bogie with a running speed of 200km.h-1 in China, the effect of traction bar arrangement on locomotive operation safety was studied. The vehicle dynamics model of 2C0-axis flexible overhead traveling vehicle was established by multi-body dynamics software SIMPACK. Under the condition of idling, towing and braking, the single towing rod was towed from the bogie to the end and middle of the vehicle body , Locomotive’s straight running performance and curve passing performance. The analysis results show that the traction rod arrangement has no significant effect on the locomotive dynamic performance. It is suggested that the traction rod end traction should be adopted to simplify the design and manufacture of the locomotive body. Locomotives towed at the end of the tow bar can safely pass through the S-shaped curve of R400m and R1600m. When R400m has a small radius curve, the transverse force of the wheelset running idly by locomotive is greater than the lateral force of towing and braking conditions, When the R2800m large radius curve is passed, the lateral force of the wheelset on the traction and idling locomotives of the locomotive is quite large, which is greater than the lateral force of the braking condition.