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A method for optimization of time intervals between rolling cuts on sorting humps
Railway Engineering Science ( IF 4.4 ) Pub Date : 2018-05-11 , DOI: 10.1007/s40534-018-0161-2
Dmytro Kozachenko , Volodymyr Bobrovskyi , Yevhen Demchenko

Sorting humps are the main technical means providing the breaking- and making-up of freight trains. Automation of sorting process by implementing microprocessor control systems is the main direction of increasing hump yard capacity, enhancement of safety in trains breaking-up, improvement of working conditions on hump yards. However, for wider introduction of such systems at the humps, it is necessary to reduce their cost. One of the main tasks of hump control systems is the determination of the optimal cars exit speeds from the retarders. Its solution is significantly complicated because of the uncertainty of cars rolling resistance coefficient, wind velocity and direction, retarder control errors. The paper is aimed at solving the problem of searching for such cars exit speeds from the retarders that provide the longest time intervals between them at the switches. Implementation of this method will make it possible to improve the quality of sorting process as a whole by improving the software of microprocessor control systems for automatic humping, rather than by increasing their technical facilities, which as a result will reduce the cost of their construction and operation. The research results, when solving the problem of searching for cars exit speeds from the retarders, allow us to move from searching for the maximum of a nonlinear non-smooth function of two variables to solution of an equation with one variable, which significantly accelerates and simplifies the solution to the problem.

中文翻译:

一种优化驼峰轧制间隔的时间间隔的方法

驼峰整理是提供货运列车分解和组装的主要技术手段。通过实施微处理器控制系统来实现分拣过程的自动化是提高驼峰堆场容量,增强列车解体安全性,改善驼峰堆场工作条件的主要方向。然而,为了在驼峰中更广泛地引入这种系统,有必要降低其成本。驼峰控制系统的主要任务之一是确定最佳汽车从缓速器退出的速度。由于汽车滚动阻力系数,风速和方向的不确定性以及缓速器控制误差,其解决方案非常复杂。本文旨在解决从缓速器中寻找此类轿厢出口速度的问题,该延迟器在开关之间提供了最长的时间间隔。这种方法的实施将有可能通过改进用于自动驼峰的微处理器控制系统的软件,而不是通过增加其技术设施来提高整个分拣过程的质量,从而降低其建造和建造的成本。操作。研究结果在解决了寻找缓速器退出汽车速度的问题时,使我们从寻找两个变量的非线性非光滑函数的最大值转向寻找一个变量的方程的解,从而显着地加速和降低了速度。简化了问题的解决方案。这种方法的实施将有可能通过改进用于自动驼峰的微处理器控制系统的软件,而不是通过增加其技术设施来提高整个分拣过程的质量,从而降低其建造和建造的成本。操作。研究结果在解决了寻找缓速器退出汽车速度的问题时,使我们从寻找两个变量的非线性非光滑函数的最大值转向寻找一个变量的方程的解,从而显着地加速和降低了速度。简化了问题的解决方案。这种方法的实施将有可能通过改进用于自动驼峰的微处理器控制系统的软件,而不是通过增加其技术设施来提高整个分拣过程的质量,从而降低其建造和建造的成本。操作。研究结果在解决了寻找缓速器退出汽车速度的问题时,使我们从寻找两个变量的非线性非光滑函数的最大值转向寻找一个变量的方程的解,从而显着地加速和降低了速度。简化了问题的解决方案。结果将减少其建造和运营成本。研究结果在解决了寻找缓速器退出汽车速度的问题时,使我们从寻找两个变量的非线性非光滑函数的最大值转向寻找一个变量的方程的解,从而显着地加速和降低了速度。简化了问题的解决方案。结果将减少其建造和运营成本。研究结果在解决了寻找缓速器退出汽车速度的问题时,使我们从寻找两个变量的非线性非光滑函数的最大值转向寻找一个变量的方程的解,从而显着地加速和降低了速度。简化了问题的解决方案。
更新日期:2018-05-11
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