研磨子模糊控制  

Fuzzy Control of Abrasive Block

作　　者：张正桥 曾京[1] 汪群生[1] ZHANG Zhengqiao;ZENG Jing;WANG Qunsheng(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《机械》2021年第9期21-27,共7页Machinery

基　　金：国家自然科学基金(61960206010)。

摘　　要：基于轮轨粘着的基本原理,对比了撒砂、喷射陶瓷粒子和使用研磨子三种粘着改善策略,以及组合校正法和模糊控制法两种粘着控制方法,以此设计了一种研磨子模糊控制系统。该系统可以作为目前所采用的恒常研磨策略和组合校正力矩调节方法的辅助,在保证列车在牵引、高速运行和制动过程中维持轮轨接触面清洁的同时,当车轮在一定速度区间内产生较大滑行或空转趋势时控制系统能够迅速响应,增大研磨子作用压力,在改善轮轨关系的前提下极大地减少了研磨子及车轮材料的浪费。此外,可以根据增粘和修型需求修改模糊控制参数,以实现不同的作用效果,智能调节研磨子的作用频率。A fuzzy control system for abrasive blocks is designed based on the principle of wheel-rail adhesion.Three adhesion improvement strategies,sanding,ceramic particles and abrasive block,as well as two adhesion control methods,combined correction method and fuzzy control method are compared and analyzed.This system can be used as an aid to the constant abrasive strategy and the combined correction method.It can ensure that the wheel-rail contact surface keep clean during the traction,high-speed operation and braking process of the train.It can also increase the abrasive pressure while the wheel has a tendency to slip in a certain speed range and therefore reduce the waste of materials.In addition,the fuzzy control parameters can be modified according to the requirements of improving adhesion and adjusting the profile to regulate the action frequency of abrasive block intelligently.

关 键 词：研磨子 轮轨粘着 模糊控制 

分 类 号：U264.76[机械工程—车辆工程]