铁道科学与工程学报2017，Vol.14Issue(8)：1758-1764,7.
换枕机扒砟过程道砟阻力特性研究
Study on ballast resistance characteristics of sleeper replacement machine ballast raking process
摘要
Abstract
In this paper, based on the principle of granular mechanics, the raking tooth force of sleeper replacement machine ballast raking process was analyzed. It was found that ballast compactness and ballast raking speed were the main factors affecting ballast resistance characteristic. Ballast bed discrete element model was established with the discrete element software EDEM and sleeper replacement machine ballast raking process was simulated. The change rule of ballast resistance was studied at different ballast raking stages under different ballast raking speeds. The ballast resistance characteristics of ballast raking process was obtained and the maximum ballast resistance value under the condition of the machine working efficiency was obtained as well. It can provide the basis for the design of the structural strength and the research of the hydraulic system stability.关键词
换枕机/扒砟过程/道砟阻力/离散元法Key words
sleeper replacement machine/ballast raking process/ballast resistance/discrete element method分类
矿业与冶金引用本文复制引用
柳波,郭林林,王亚雄,吴中鼎..换枕机扒砟过程道砟阻力特性研究[J].铁道科学与工程学报,2017,14(8):1758-1764,7.基金项目
湖南省十二五省级重点学科建设(机械工程)资助项目(1342-71100000003) （机械工程）
