城市軌道交通鋼軌的高速維護(hù)-文庫吧資料
2024-08-18 04:39本頁面
【正文】 Wear Rate 神奇的鋼軌磨損率 ? The development of all mon rail defects is nonlinear 所有常見的鋼軌損害的發(fā)展都是非線性的 ? Goal: Maximize Rail Life Cycle by removing less material in shorter grinding cycles 目標(biāo)：通過更頻繁的打磨，每次僅去除少量鋼軌表面材質(zhì)，最大限度延長鋼軌的使用壽命 ? Optimum: Removal of the hardened surface layer before defects develop 最優(yōu)方式：在傷損形成前磨削掉表面硬化層 based on: J. Kalousek, E. Magel: The magic wear rate. Railway Track amp。最終可能導(dǎo)致鋼軌斷裂。 ? Rolling contact fatigue is a material transformation. A hardened surface layer develops and leads to surface cracks (head checks and squats). The ultimate consequence is rail fracture. ? 接觸性疲勞損害是一種物質(zhì)轉(zhuǎn)化。High Speed Maintenance for Rails 城市軌道交通鋼軌的高速維護(hù) Vossloh HSGCity Grinding Machine 福斯羅城軌高速打磨車 1 2 High Speed Maintenance for Rails 城市軌道交通鋼軌的高速維護(hù) Content 內(nèi)容 The main problems and status of rail maintenance in UTS 城市軌道交通中鋼軌的主要問題及維護(hù)現(xiàn)狀 High Speed Grinding (HSG) technology 高速打磨技術(shù) Vossloh and the core technology advantages of HSG 福斯羅公司及高速打磨技術(shù)的核心優(yōu)勢(shì) + + + 3 High Speed Maintenance for Rails 城市軌道交通鋼軌的高速維護(hù) Content 內(nèi)容 The main problems and status of rail maintenance in UTS 城市軌道交通中鋼軌的主要問題與維護(hù)現(xiàn)狀 ? Influence factors of the wheel /rail relationship in UTS 城市軌道交通中影響輪軌關(guān)系的因素 ? Problems and challenges of rail maintenance 鋼軌維護(hù)遇到的問題和挑戰(zhàn) ? Existing maintenance methods and effects 現(xiàn)有的鋼軌維護(hù)手段和維護(hù)效果 High Speed Grinding (HSG) technology 高速打磨技術(shù) Vossloh and the core technology advantages of HSG 福斯羅公司及高速打磨技術(shù)的核心優(yōu)勢(shì) + + Influence Factors of the wheel/rail relationship in UTS 城市軌道交通中影響輪軌關(guān)系的因素 ? Rail vehicle 車輛 ? Load 載重 ? Speed 速度 ? Line geometry 線路幾何尺寸 ? Welding joint 鋼軌焊接接頭 ? Rail 鋼軌 ? Fastening systems 扣件 ? Rail sleeper 軌枕 ? Track subgrade 路基 ? Environment 環(huán)境 4 5 High Speed Maintenance for Rails 城市軌道交通鋼軌的高速維護(hù) Inhalt 內(nèi)容 The main problems and status of rail maintenance in UTS 城市軌道交通中鋼軌的主要問題及維護(hù)的現(xiàn)狀 ? Influence factors of the wheel /rail relationship in UTS 城市軌道交通中影響輪軌關(guān)系的因素 ? Problems and challenges of rail maintenance 鋼軌維護(hù)遇到的問題和挑戰(zhàn) ? Existing maintenance methods and effects 現(xiàn)有的鋼軌維護(hù)手段和維護(hù)效果 High Speed Grinding (HSG) technology 高速打磨技術(shù) Vossloh and the core technology advantages of HSG 福斯羅公司及在高速打磨技術(shù)的核心優(yōu)勢(shì) + + Problems and challenges of rail maintenance 鋼軌維護(hù)遇到的問題和挑戰(zhàn) ? Line mileage rapid growth 線路里程迅速增長 ? Faster running speed 速度越來越快 ? Increased Lootive traction force (shear force) 機(jī)車牽引力不斷提高 （剪切作用力增大） ? Shorter departure time 發(fā)車間隔越來越短 ? Increased load 載重量增大 ? Corrugation causes traffic noise 波磨引起行車噪音 ? Rolling contact fatigue crack leads to shorten the service life of rail 滾動(dòng)接觸疲勞裂紋導(dǎo)致鋼軌使用壽命縮短 ? Less maintenance time (34 hours) 維護(hù)天窗少（ 34小時(shí)） 6
數(shù)學(xué)相關(guān)推薦
鄂ICP備17016276號(hào)-1