摘要
为了研究我国2万吨重载组合列车纵向冲动问题,以装用C80系列运煤专用敞车的组合列车为例,采用Matlab/Simulink模块建立了2万吨重载组合列车动力学模型,考虑列车编组方式、从控机车响应时间、车辆结构、钩缓装置、运行条件等因素,重点分析了1+2+1组合列车紧急制动工况下各因素对纵向冲动的影响。研究表明:列车编组方式对各车位车钩力的大小和分布影响很大,提高从控机车响应时间、装用牵引杆装置或摩擦胶泥缓冲器有利于改善车钩受力,列车以低制动初速度在陡下坡道时进行紧急制动的车钩力最大。
In order to study the longitudinal impulse problem on 20 000 t heavy haul combined train in China, the kinetic model of combined train with an example of coal dedicated gondola car of C80 series was established by Matlab/Simulink module. It was mainly analyzed that effects of longitudinal impulses under emergency braking conditions for combined train with 1＋2＋1 type, and types of combination, response time of controlled locomotives, structure of vehicles, hook buffer devices, operating conditions and other factors were taken into the consider. The result indicates that types of combination have a large influence on coupler forces with sizes and distributions. Also shorter response time of controlled locomotives, using traction rod friction rubber buffer can help to reduce coupler forces. Last but not least, there is the largest coupler force under emergency braking conditions with lower speed and steeper down gradient.
出处
《机车电传动》
北大核心
2014年第3期34-39,共6页
Electric Drive for Locomotives
基金
国家自然科学基金资助项目(51005190)
关键词
2万吨重载组合列车
纵向动力学
车钩力
加速度
纵向冲动
20 000 t heavy haul combined train
longitudinal dynamics
coupler force
acceleration
longitudinal impulse
